Showing posts with label Facebook. Show all posts
Showing posts with label Facebook. Show all posts

Thursday, October 7, 2021

NEC to build 24-fiber-pair transatlantic cable for Facebook

NEC has been contracted by Facebook to build an ultra-high performance transatlantic subsea fiber-optic cable connecting the USA and Europe. The project will use NEC’s newly developed 24 fiber pair cable and repeater, enabling the system to deliver a maximum transmission capacity of a half Petabit per second, the highest to date for a long-distance repeatered optical subsea cable system.


Facebook confirmed its first-ever transatlantic, 24-fiber-pair subsea cable system will connect Europe to the United States, buiding on its recent news about 2Africa Pearls, the subsea cable connecting Africa, Asia, and Europe.

Facebook also announced a second generation of its Bombyx robot, which climbs and then install fiber over medium-voltage power lines. The updated design is lighter, faster, and more agile. 

In addition, Facebook's Terragraph radios are now being used to deliver high-speed internet to more than 6,500 homes in Anchorage, Alaska, and deployment has started in Perth, Australia. Facebook licenses Terragraph for free to OEMs who have collectively shipped more than 30,000 Terragraph units to more than 100 service providers and system integrators around the world. 


NEC targets subsea cables to 24 fiber pairs and beyond

NEC and its subsidiary OCC Corporation completed full qualification of subsea repeaters and optical cable containing up to 20 fiber pairs (40 fibers). This represents a 25% improvement in fiber count over 16 fiber pair systems previously built by NEC.

NEC said it achieved this milestone with only minor modifications to its proven repeater and cable designs. This was done by optimizing key repeater components, and by proving that its existing cable design could easily accommodate more fibers. The 20 fiber pair repeaters continue to use quadruple pump sharing technology, first introduced by NEC in 2010, for high optical and electrical efficiency.


OCC’s 20 fiber pair cable can be manufactured using a wide range of existing optical fibers, according to the needs of each new cable system. Furthermore, OCC has demonstrated to its customers that they can visually identify individual fibers using a combination of ring marking and conventional fiber coloring. This allows the potential number of fibers in a cable to be greatly expanded. Significantly, in OCC cable, the fiber’s transmission performance is completely unaffected, either by the fiber coloring or cabling processes.

“As global capacity demand continues to soar, NEC is committed to helping our customers scale up their networks in a cost-effective way,” said Takaaki Ogata, Executive Technical Manager of NEC’s Submarine Network Division. “Further significant increases in the fiber pair count of NEC’s wet plant are coming soon,” he added.

Mass production of the newly-qualified subsea repeaters and optical cable has already started.

2Africa will be longest subsea cable system in the world

The 2Africa cable system will add an extension to the Arabian Gulf, India, and Pakistan, bringing its total length to over 45,000 kilometers, making it the longest subsea cable system ever deployed.  

The 2Africa consortium includes China Mobile International, Facebook, MTN GlobalConnect, Orange, stc, Telecom Egypt, Vodafone and WIOCC.

Now connecting three continents, Africa, Europe and Asia terrestrially through Egypt, 2Africa creates unique connectivity by adding vital landing locations in Oman (Barka), UAE (Abu Dhabi and Kalba), Qatar (Doha), Bahrain (Manama), Kuwait (Kuwait), Iraq (Al-Faw), Pakistan (Karachi), India (Mumbai), and a fourth landing in Saudi Arabia (Al Khobar). The new 2Africa branch joins recently announced extensions to the Canary Islands, the Seychelles, Comoros Islands, Angola, and a new landing to south-east Nigeria.

As with other 2Africa cable landings, capacity will be available in PEARLS landings at carrier-neutral facilities or open-access cable landing stations on a fair and equitable basis, encouraging and supporting the development of a healthy internet ecosystem. 

Alcatel Submarine Networks (ASN) will deploy the new system utilizing new technologies such as SDM that allow the deployment of up to 16 fiber pairs.



2Africa subsea cable boasts design capacity up to 180 Tbps

2Africa, a new subsea cable to serve the African continent and Middle East region, promises to deliver more than the total combined capacity of all subsea cables serving Africa today, with a design capacity of up to 180Tbps on key parts of the system.

Consortium partners include China Mobile International, Facebook, MTN GlobalConnect, Orange, stc, Telecom Egypt, Vodafone and WIOCC.

Alcatel Submarine Networks (ASN) has been selected to build the fully-funded cable. The project will leverage SDM1 (space division multiplexing) technology from ASN, allowing deployment of up to 16 fiber pairs instead of the eight fiber pairs supported by older technologies. The cable will incorporate optical switching technology to enable flexible management of bandwidth. Cable burial depth has also been increased by 50% compared to older systems, and cable routing will avoid locations of known subsea disturbance, all helping to ensure the highest levels of availability.

The 2Africa subsea cable will span 37,000km long, interconnect Europe (eastward via Egypt), the Middle East (via Saudi Arabia), and 21 landings in 16 countries in Africa. The system is expected to go live in 2023/4. Each of the cable landing sites will offer carrier-neutral data centers or open-access cable landing stations on a fair and equitable basis.

In addition, the 2Africa parties and Airtel have signed an agreement with Telecom Egypt to provide a completely new crossing linking the Red Sea and the Mediterranean, the first in over a decade. This includes new cable landing stations and deployment of next-generation fiber on two new, diverse terrestrial routes parallel to the Suez Canal from Ras Ghareb to Port Said, and a new subsea link that will provide a third path between Ras Ghareb and Suez. 

Monday, October 4, 2021

Facebook hit by 6 hour outage


Facebook, Instagram, and WhatsApp were hit by a global outage on Monday beginning at approximately 15:50 UTC and continuing for almost 6 hours. In July, Facebook reported 3.51 billion people are using at least one of its apps every month. 

Facebook CTO Mike Schroepfer attributed the outage to networking issues and offered the company's apologies. 

In a blog post, Facebook Engineering Group's Santosh Janardhan said the root cause of the outage was a faulty configuration change on the backbone routers that coordinate network traffic between data centers. The disruption cascaded across Facebook's application, including internal tools the company uses to manage its infrastructure.


Cloudflare said the issue appeared more serious than a DNS misconfiguration because it appeared as if Facebook had stopped announcing the BGP routes to their DNS prefixes, making their infrastructure IPs suddenly were unreachable as "if someone had pulled the cables from their data centers all at once and disconnected them from the Internet."

https://engineering.fb.com/2021/10/04/networking-traffic/outage/

https://blog.cloudflare.com/october-2021-facebook-outage/

Monday, August 16, 2021

2Africa cable takes shape as world's largest subsea project

The 2Africa consortium, comprised of China Mobile International, Facebook, MTN GlobalConnect, Orange, stc, Telecom Egypt, Vodafone and WIOCC, announced four new branches: the Seychelles, the Comoros Islands, and Angola, and bring a new landing to south-east Nigeria. The new branches join the recently announced extension to the Canary Islands.

Alcatel Submarine Networks (ASN) has been selected to deploy the new branches, which will increase the number of 2Africa landings to 35 in 26 countries. ASN has started manufacturing the cable and building repeater units in its factories in Calais and Greenwich to deploy the first segments in 2022. The system is expected to be ready-fo-service in 2023.

Marine surveys have been completed for most of the 2Africa system, which is expected to become the world's largest subsea cable project.

https://www.orange.com/en/newsroom/press-releases/2021/new-branches-2africa-subsea-cable-system

2Africa subsea cable boasts design capacity up to 180 Tbps

2Africa, a new subsea cable to serve the African continent and Middle East region, promises to deliver more than the total combined capacity of all subsea cables serving Africa today, with a design capacity of up to 180Tbps on key parts of the system.

Consortium partners include China Mobile International, Facebook, MTN GlobalConnect, Orange, stc, Telecom Egypt, Vodafone and WIOCC.

Alcatel Submarine Networks (ASN) has been selected to build the fully-funded cable. The project will leverage SDM1 (space division multiplexing) technology from ASN, allowing deployment of up to 16 fiber pairs instead of the eight fiber pairs supported by older technologies. The cable will incorporate optical switching technology to enable flexible management of bandwidth. Cable burial depth has also been increased by 50% compared to older systems, and cable routing will avoid locations of known subsea disturbance, all helping to ensure the highest levels of availability.

The 2Africa subsea cable will span 37,000km long, interconnect Europe (eastward via Egypt), the Middle East (via Saudi Arabia), and 21 landings in 16 countries in Africa. The system is expected to go live in 2023/4. Each of the cable landing sites will offer carrier-neutral data centers or open-access cable landing stations on a fair and equitable basis.

In addition, the 2Africa parties and Airtel have signed an agreement with Telecom Egypt to provide a completely new crossing linking the Red Sea and the Mediterranean, the first in over a decade. This includes new cable landing stations and deployment of next-generation fiber on two new, diverse terrestrial routes parallel to the Suez Canal from Ras Ghareb to Port Said, and a new subsea link that will provide a third path between Ras Ghareb and Suez. 



"The launch of 2Africa enables us to offer our customers seamless connection between Africa and Europe, together with our SEA-ME-WE 5 and AAE-1 subsea cable resources to further extend to Asia, which is an important milestone of our global development strategy," said Jessica Gu, Director & Chief Technology Officer of China Mobile International. "The utmost capacity and faster transmission allows us to satisfy the needs of African nations today and in the future, reflecting our firm commitment to building a global digital life."

Tuesday, August 3, 2021

STL collaborates with Facebook Connectivity on Evenstar radio units

STL is collaborating with Facebook Connectivity to design and develop 4G and 5G radio products as part of the Evenstar program, which is a collaborative effort led Facebook Connectivity  to accelerate the adoption of Open RAN technology. 

Through this collaboration, STL will build two advanced, high-power macro radio products. The first one is an O-RAN compliant radio providing higher capacity for dense deployments. As part of this engagement, STL will also develop an O-RAN compliant 4G+5G Dual Technology Radio that supports both technologies individually or/and concurrently. These 3GPP and O-RAN compliant radio products will be developed over the next year and will enable telecom operators around the world to scale up commercial deployments of open networking infrastructure and prepare their networks for Open RAN 5G.

Commenting on this collaboration, Chris Rice, CEO Access Solutions Business, STL, said, "We are delighted to support and contribute to the Evenstar program to develop 3GPP and O-RAN compliant radio products. Through this collaboration, STL extends its existing commitment towards creating a robust, open and disaggregated, access network ecosystem. By enabling  an open networking infrastructure through efforts like this one, we are enabling global telecom service providers to take the power of 5G technology to billions of people worldwide at lower cost points."

https://www.stl.tech/

Monday, July 5, 2021

Facebook announces Magma on AWS

Facebook announced a collaboration with Amazon Web Services (AWS) to integrate the open source Magma cellular core technology with AWS’s edge computing services. 

Facebook says Magma on AWS Marketplace will enable service providers to deploy 4G and 5G networks significantly faster by obtaining AWS infrastructure preinstalled with Magma, no matter how large or small the deployment. With no licensing fees for the packet core software, Magma on AWS Marketplace will make fixed wireless and private network deployments quick and at a significantly lower cost of ownership.

https://engineering.fb.com/2021/06/28/connectivity/digital-divide/

Linux Foundation targets cellular core network stack with Magma

The Linux Foundation is launching an open source industry collaboration focused on enabling a converged cellular core network stack, starting with the Magma open source software platform. 

Magma, which was previously open sourced by Facebook in 2019,  will now be managed under a neutral governance framework at the Linux Foundation.

Arm, Deutsche Telekom, Facebook, FreedomFi, Qualcomm, the Institute of Wireless Internet of Things at Northeastern University, the OpenAirInterface Software Alliance, and the Open Infrastructure Foundation, will join the collaboration as founding members to accelerate the path to production use cases at scale. 


Magma features an access-agnostic mobile packet core, advanced network automation and management tools, and the ability to integrate with existing LTE networks with use cases across both virtual and container Network Functions (xNFs) including fixed wireless access, carrier Wi-Fi, private LTE and 5G, network expansion, and mobile broadband. 

A number of Magma community members are also collaborating in the Telecom Infra Project (TIP)’s Open Core Network project group to define, build, test, and deploy core network products that leverage Magma software alongside disaggregated hardware and software solutions by the TIP Open Core ecosystem.

“Arm is synonymous with a diverse technology ecosystem that underpins the compute, connectivity, and security required for solutions spanning cloud to edge to endpoint devices,” said Chris Bergey, senior vice president and general manager, Infrastructure Line of Business, Arm. “Together with the Linux Foundation and Facebook Connectivity, Magma is helping to solve the very real challenge of providing feature-rich, cost effective access for worldwide mobile networks.”

“Bringing Magma to the Linux Foundation is a huge milestone as the Magma ecosystem of developers continues to grow,” said Dan Rabinovitsj, vice president for Facebook Connectivity. “We are excited to see the contributions and innovations from this collective group of industry players, and we look forward to celebrating Magma’s success as the project continues to scale.” 

“Qualcomm Technologies strongly supports the evolution of the Magma core network efforts into a broader coalition among the key founding and contributing projects,” said Douglas Knisely, engineer, principal, Qualcomm Technologies, Inc. and OSA Advisory Board member. “This effort builds on the collaboration activities and code contributions from OAI into the Magma project and promotes the harmonization of a common 5G Core Network reference architecture, internal structure, APIs, and interfaces for all of the emerging 5G open source projects in the industry.”

https://www.linuxfoundation.org/press-release/linux-foundation-launches-industry-collaboration-with-magma-to-accelerate-deployment-of-wireless-networks/

https://www.magmacore.org/

Facebook backs terrestrial cable projects in DRC, Pakistan, Indonesia

Facebook announced plans to back terrestrial fiber projects in the Democratic Republic of Congo and in Pakistan

In the DRC, Facebook is working with Liquid Intelligent Technologies to build 2,200 kilometers of fiber to increase active long-haul fiber. The project will complete a missing fiber link between East and West Africa, and establish DRC as a connection hub for neighboring landlocked countries, including Rwanda, Uganda, and Zambia. The investment builds on Facebook's completion of DRC’s first privately held long-haul fiber route, from Muanda to Matadi. 



In Pakistan, Facebook recently announced its first terrestrial fiber investment to support the country’s digital transformation. Facebook is partnering with Nayatel to build 1,700 kilometers of open-access fiber to help address the growing demand for urban connectivity for 10 million people across eight cities. 

In Indonesia, Facebook is increasing its investment with Alita Praya Mitra to add fiber to the initial build areas and to additional cities to address the increasing demand for high-speed internet. 

Facebook also noted its backing of the 2Africa project and the Bifrost transpacific cable project.

2Africa subsea cable boasts design capacity up to 180 Tbps

2Africa, a new subsea cable to serve the African continent and Middle East region, promises to deliver  more than the total combined capacity of all subsea cables serving Africa today, with a design capacity of up to 180Tbps on key parts of the system.

Consortium partners include China Mobile International, Facebook, MTN GlobalConnect, Orange, stc, Telecom Egypt, Vodafone and WIOCC.

Alcatel Submarine Networks (ASN) has been selected to build the fully-funded cable. The project will leverage SDM1 (space division multiplexing) technology from ASN, allowing deployment of up to 16 fiber pairs instead of the eight fiber pairs supported by older technologies. The cable will incorporate optical switching technology to enable flexible management of bandwidth. Cable burial depth has also been increased by 50% compared to older systems, and cable routing will avoid locations of known subsea disturbance, all helping to ensure the highest levels of availability.

The 2Africa subsea cable will span 37,000km long, interconnect Europe (eastward via Egypt), the Middle East (via Saudi Arabia), and 21 landings in 16 countries in Africa. The system is expected to go live in 2023/4. Each of the cable landing sites will offer carrier-neutral data centers or open-access cable landing stations on a fair and equitable basis.

In addition, the 2Africa parties and Airtel have signed an agreement with Telecom Egypt to provide a completely new crossing linking the Red Sea and the Mediterranean, the first in over a decade. This includes new cable landing stations and deployment of next-generation fiber on two new, diverse terrestrial routes parallel to the Suez Canal from Ras Ghareb to Port Said, and a new subsea link that will provide a third path between Ras Ghareb and Suez. 



 Facebook backs Bifrost cable from U.S. to Southeast Asia

In addition to its participation in the Echo subsea cable from the U.S. to Singapore, Facebook confirmed its investment in the Bifrost Cable System from the U.S. to South East Asia.

The Bifrost Cable System will span over 15,000 km, connecting Singapore, Indonesia, the Philippines, Guam and the west coast of North America. The cable is expected to be completed in 2024.

The project is also backed by Keppel Telecommunications & Transportation Limited (Keppel T&T) and Telekomunikasi Indonesia International (Telin), which is a subsidiary of PT Telkom Indonesia.

The partners say that when fully commissioned, the multiple fibre paired Bifrost Cable System will be the largest capacity cable across the Pacific Ocean.

Keppel T&T, Facebook and Telin have appointed Alcatel Submarine Networks (ASN) for the supply and installation works of the cable system.

“Connectivity is at the heart of our mission to give people the power to build community,” said Kevin Salvadori, Vice President, Network at Facebook. “We are committed to bringing more people online to a faster internet, to support the growth of digital economies, and to do this in collaboration with local partners.”

https://engineering.fb.com/2021/03/28/connectivity/echo-bifrost/


Facebook's Evenstar picks up Baicells, Marvell, MaxLinear, Sterlite

The Telecom Infra Project's Evenstar reference desing for O-RAN deployments has picked up new supply chain partners, including Baicells, Marvell, MaxLinear, and Sterlite Technologies Limited. Existing technology partners include ADI, Altiostar, Baicells, Flex, Mavenir, MTI, Parallel Wireless, and Xilinx.

Evenstar is focused on building general-purpose RAN reference architecture for 4G and 5G networks that decouples the RRU hardware, distributed unit (DU), and control unit (CU) software.

Facebook now expects commercial Evenstar deployments in the next half in APAC and Europe to scale OpenRAN adoption. The first Evenstar remote radio unit (RRU) product completed lab validation in December 2020.

https://www.facebook.com/connectivity/solutions/evenstar

https://engineering.fb.com/2021/06/28/connectivity/digital-divide/ 

Vodafone outlines its O-RAN architecture and vendors

Vodafone named Dell, NEC, Samsung Electronics, Wind River, Capgemini Engineering and Keysight Technologies as strategic vendors for its commercial deployment of Open Radio Access Network (RAN) in Europe.Highlights:Samsung will be a reference RAN software provider. Samsung and NEC will supply Massive MIMO radio units based on the Telecom Infra Project's Evenstar whitebox designDell EMC PowerEdge servers will support the combined DU/CU function...

Marvell to supply OpenRAN Distributed Unit design for Facebook's Evenstar

 Marvell  will join the Evenstar program and work with Facebook Connectivity to provide a 4G/5G OpenRAN Distributed Unit (DU) design for Evenstar based on its OCTEON Fusion baseband processors and Arm-based OCTEON multi-core digital processing units (DPUs). The Evenstar program is a collaborative effort focused on building a general-purpose RAN reference architecture for 4G and 5G networks in the OpenRAN ecosystem. Specifically,...

MaxLinear collaborates on Facebook Connectivity's Evenstar

MaxLinear announced a collaboration with Facebook Connectivity to integrate silicon technologies and radio processing algorithms into Evenstar radio units (RUs). MaxLinear will integrate its MaxLin radio processing algorithms including Digital Pre-Distortion (DPD) and Crest Factor Reduction (CFR) technologies with Evenstar RUs to enhance performance and reduce cost.The Evenstar program is a collaborative effort focused on building a general-purpose...


Monday, March 29, 2021

Facebook and Google collaborate on U.S.-Guam-Singapore cable

Facebook and Google are lead investors in a new subsea cable from Eureka, California to Singapore, with a stop-over in Guam.

The Echo subsea cable will be the first to directly connect the U.S. to Singapore with direct fiber pairs over an express route. The cable is expected to have landings in Indonesia and possibly other locations. 

In a blog posting, Google said Echo's unique route to Southeast Asia will avoid the crowded, traditional paths to the north. The cable is expected to be ready for service in 2023.

https://cloud.google.com/blog/products/infrastructure/introducing-the-echo-subsea-cable

https://engineering.fb.com/2021/03/28/connectivity/echo-bifrost/

Facebook's new Singapore data center to use StatePoint Liquid Cooling

Construction is now underway on Facebook's first custom-built data center in Asia.  The new data center in Singapore shares some characteristics with other Facebook facilities, such as the use of 100% renewable energy, but features many unique aspects. First, it will be an 11-story building that will sit on 12 acres of land in Singapore’s Tanjong Kling Data Center Park. Second, it will be the first to incorporate the new StatePoint Liquid...

Facebook to build data center in Singapore

Facebook announced plans to build a hyperscale data center in Singapore. The 170,000 square meter facility, which will be Facebook's first wholly-owned data center in Asia-Pac, is expected to come online in 2022 at the latest. Facebook estimated the cost of the project at US$ 1 billion. Last month, Facebook set 2020 as its target to reduce greenhouse gas emissions by 75% and to power 100% of global operations with renewable energy. Three years...

MIST subsea cable to deliver 240 Tbps from Singapore to India

NTT announced "MIST", a submarine cable between Singapore, Myanmar and India (Mumbai and Chennai) that promises a record 240 Tbps capacity with support for 400 Gbps wavelengths. MIST will be part of a strategic joint venture for international submarine cables in South East Asia, with Orient Link Pte. Ltd. The cable is expected to be ready for service by June 2022. MIST will span 11,000 kilometers in length with 12 fiber pairs. Wavelength Selective...

Facebook backs Bifrost cable from U.S. to Southeast Asia

In addition to its participation in the Echo subsea cable from the U.S. to Singapore, Facebook confirmed its investment in the Bifrost Cable System from the U.S. to South East Asia.

The Bifrost Cable System will span over 15,000 km, connecting Singapore, Indonesia, the Philippines, Guam and the west coast of North America. The cable is expected to be completed in 2024.

The project is also backed by Keppel Telecommunications & Transportation Limited (Keppel T&T) and Telekomunikasi Indonesia International (Telin), which is a subsidiary of PT Telkom Indonesia.

The partners say that when fully commissioned, the multiple fibre paired Bifrost Cable System will be the largest capacity cable across the Pacific Ocean.

Keppel T&T, Facebook and Telin have appointed Alcatel Submarine Networks (ASN) for the supply and installation works of the cable system.

“Connectivity is at the heart of our mission to give people the power to build community,” said Kevin Salvadori, Vice President, Network at Facebook. “We are committed to bringing more people online to a faster internet, to support the growth of digital economies, and to do this in collaboration with local partners.”

https://engineering.fb.com/2021/03/28/connectivity/echo-bifrost/

https://www.telin.net/company/newsroom/257-keppel--facebook-and-telin-announce-bifrost-cable-system

Monday, March 1, 2021

Marvell to supply OpenRAN Distributed Unit design for Facebook's Evenstar

 Marvell  will join the Evenstar program and work with Facebook Connectivity to provide a 4G/5G OpenRAN Distributed Unit (DU) design for Evenstar based on its OCTEON Fusion baseband processors and Arm-based OCTEON multi-core digital processing units (DPUs). 

The Evenstar program is a collaborative effort focused on building a general-purpose RAN reference architecture for 4G and 5G networks in the OpenRAN ecosystem. 

Specifically, Marvell will supply a fully integrated DU reference board featuring the OCTEON Fusion-O baseband, providing 4G and 5G PHY layer processing and an OCTEON DPU to run software functions. Facebook Connectivity will collaborate with Marvell to enable software operations on this solution and encourage multiple third parties to port protocol stack software as well. The DU supports up to 16 downlink layers at 100 MHz channelization with 10 Gbps downlink and 5Gbps uplink performance. The goal is to have Evenstar DU equipment ready for network operator trials next year.


“Marvell demonstrated its commitment to OpenRAN by introducing our O-RAN Platform in December 2020 based on our industry-leading OCTEON Fusion architecture,” said Raj Singh, executive vice president of the Processors Business Group at Marvell. “We also realize that the key to success – not just for our platform, but for the industry as a whole – involves collaboration such as this Evenstar DU engagement with Facebook Connectivity and other partners. We look forward to delivering a high performance, cost-optimized DU design that supports the capacity and interoperability requirements necessary to deploy versatile, next-generation networks by the operator community.”

Tuesday, January 12, 2021

Facebook tests trans-Atlantic 700 Gbps wavelength with Infinera's ICE6

 Facebook achieved two significant optical transmission records during recent testing of Infinera's ICE6 optical engine over the MAREA trans-Atlantic cable system:

MAREA hero results over 6,640 km

  • 30 Tbps of total capacity on a single fiber pair
  • 700 Gbps data rate per wavelength
MAREA deployable results over 6,640 km:
  • 28 Tbps of total capacity on a single fiber pair
  • Up to 650 Gbps data rate per wavelength


The hero result is considered maximum performance because it offers no additional deployment margin.

The MAREA cable system, which spans 6,640 km from Bilbao to Virginia Beach, has been used by multiple vendors for testing state-of-the-art equipment and is considered the benchmark for testing because it was specifically optimized for maximum capacity per fiber pair. MAREA uses a low-loss optical fiber type based on a pure silica core. It also features short amplifier spacing of 56 km.

Infinera cited several factors for the record-breaking performance of its ICE6 engine in this trial, including the use of Nyquist subcarriers, the advantage of long code words for probablistic constellation shaping (PC), nonlinear algorithms and mitigation techniques (e.g., super-Gaussian distributions), as well as dynamic bandwidth allocation. 

In a blog post, Steve Grubb, Global Network Optical Architect, states "the higher data rate per wave, the better the cost per bit – and that includes the fact that we need fewer transponders that consume less rack space and less electrical power. The 28 Tb/s option with ICE6 reduces the network element count by 60% vs. the boxes previously required for 24 Tb/s…that’s a huge improvement, especially in cable landing stations where real estate and power are often at a premium."

https://www.infinera.com/blog/ice6-trial-on-marea-trans-atlantic-cable-yields-two-record-results/tag/submarine/


Cisco's NCS 1004 platform tested over MAREA subsea cable

Cisco's NCS 1004 platform was successfully tested over MAREA, the 6,600 km subsea cable system connecting the United States to southern Europe (Virginia Beach, Virginia to Bilbao, Spain). Several channel capacity combinations were tested to maximize the performance and spectral efficiency on the cable. For the Virginia to Bilbao trial, 400G error-free performance was demonstrated; channels with record spectral efficiency of 6.445 b/s/Hz were achieved,...

A team of researchers from Infinera has achieved new benchmarks for efficiency for transatlantic fiber optic cables. By employing 16QAM modulation on the MAREA transatlantic cable, the researchers generated signal speeds topping out at 26.2 terabits per second, a 20 percent increase over what the cable designers originally thought feasible. By comparison, the most common way signals are modulated for MAREA today only reaches 9.5 terabits per second....

AWS to lease fiber pair on Marea's transatlantic cable

Amazon Web Services (AWS) signed an IRU agreement for the use of a fiber pair on MAREA, the transatlantic submarine cable partially owned by Telxius. MAREA is the highest capacity submarine cable in the world and provides the lowest latency route between the U.S. and Southern Europe. The route is further south than other transatlantic cables, with landing points in Virginia Beach and Sopelana, Spain. “We have developed a deep relationship with...

A field demonstration conducted by Acacia Communications, in collaboration with Microsoft and Facebook, achieved the first 400G single carrier DWDM transmission over the 6,600 km Marea submarine cable between Virginia Beach, Virginia and Bilbao, Spain. The transmission employed Acacia’s AC1200 coherent module, which is powered by its Pico digital signal processor.  Utilizing Acacia’s patented Fractional QAM modulation, the field demonstration...


Tuesday, November 24, 2020

Siklu ships Terragraph-compliant fixed wireless broadband access

Siklu will begin shipping its new N366 & T265 Terragraph-compliant, gigabit-speed fixed wireless broadband access systems to service providers in the U.S. and UK. Field trials have also begun and full commercial services are expected to commence in 1Q 2021.

Terragraph is an 802.11ay-based, multi-gigabit wireless technology developed by Facebook to deliver fiber-like speeds over the air at a significantly lower cost and faster time to market than that of trenched fiber. 

sSiklu said its Terragraph product line represents its third generation of 60GHz multipoint solutions, known as the MultiHaul product line. The N366 is an integrated system that features 360-degree coverage, the ability to self-organize into a neighborhood L2 SDN mesh and just under 16 Gbps of total capacity. Combined with the first Terminal Units, the T265, network operators are able to cover entire cities with Siklu’s Terragraph solution. Siklu also offers a complete line of advanced software applications for planning, designing, deploying, and operating extensive fixed and smart city mmWave networks. 

“We expect 2021 to be a big year for the deployment of cost-effective, Terragraph-based fixed wireless broadband, and Siklu’s announcement today provides further evidence of that,” said Dan Rabinovitsj, vice president for Facebook Connectivity. “We have worked with Siklu since the early days of Terragraph, and we are excited to see the progress they have made to incorporate our technical innovations into the already impressive Siklu portfolio of high-speed broadband infrastructure.”

“In almost all situations, wireless networks are quicker to deploy than wired ones. By incorporating Terragraph into our fixed wireless equipment, service providers can now easily generate profits based on the MH TG fiber quality and wireless flexibility in a variety of network topologies,” said Ronen Ben-Hamou, CEO of Siklu. “As we have learned over the last several months, broadband is needed more than ever and MH TG is an effective way to close the digital divide with gigabit-speed broadband. This release represents the first of a full suite of Terragraph-based products on our roadmap for 2022.”

Tuesday, September 8, 2020

Facebook and AT&T join North Carolina's Wireless Testbed

AT&T, CommScope, Facebook, Keysight, and NI are the first contributing equipment partners supporting the Platforms for Advanced Wireless Research (PAWR) program, which is funded by the National Science Foundation (NSF) and a consortium of 35 leading wireless companies and associations.

AERPAW, which stands for Aerial Experimentation and Research Platform for Advanced Wireless, was named as the third PAWR testbed in 2019 and is designed with a focus on wireless communications for unmanned aerial systems (UAS) and ground mobility. The AERPAW team is now in the first phase of testbed deployment and expects to make the platform available for early research at the beginning of 2021.

PAWR partners have so far contributed the following to the AERPAW platform:

  • AT&T: Data backhaul support
  • CommScope: Wireless antennas and fixed node enclosures
  • Facebook Connectivity: Terragraph nodes supporting millimeter wave communications
  • Keysight: Network test equipment including a channel emulator and RF sensors
  • NI: Software defined radios for experimentation and spectrum compliance monitoring


“We appreciate the partnership of so many industry leaders in our Consortium and recognize that the technology they contribute to the PAWR program represents the state of the art in wireless networking,” said Joe Kochan, Principal Investigator and Project Director for the PAWR Project Office. “For the AERPAW testbed, these contributions will make it possible for advanced research into novel drone-based communications and will drive innovation in wireless deployments through 5G and beyond.”

http://www.advancedwireless.org