Showing posts with label Google. Show all posts
Showing posts with label Google. Show all posts

Monday, April 8, 2019

Google's Dunant cable leverages SDM for 250 Tbps capacity

Google's Dunant submarine cable system, which will link the U.S. and France, will be the first subsea cable to leverage space-division multiplexing (SDM), enabling 250 terabits per second capacity.

In a blog posting, Vijay Vusirikala, Director of Network Architecture and Optical Engineering at Google, says SDM will increase cable capacity in a cost-effective manner.

Dunant's design uses twelve fiber pairs and power-optimized repeaters. Whereas traditional subsea cables are powered from the shore end and rely on a dedicated set of pump lasers to amplify the optical signal for each fiber pair, SDM allows pump lasers and associated optical components to be shared among multiple fiber pairs.

https://cloud.google.com/blog/products/infrastructure/a-quick-hop-across-the-pond-supercharging-the-dunant-subsea-cable-with-sdm-technology

Orange joins Google's Dunant transatlantic cable project

Orange is joining Google's Dunant transatlantic project, which is a 6,600km submarine cable connecting the United States to the French Atlantic coast. The system is expected to be ready for services late 2020.

As the French landing partner, Orange will build and operate the landing station on the French Atlantic coast and provide the backhaul service to Paris. In parallel, Orange will benefit from fiber-pairs with a capacity of more than 30 Tbps per pair.

Google to build private "Dunant" cable from Virginia to France

Google is planning a new transatlantic subsea cable system linking the east coast of the United States to Europe to bolster its global network.

Dunant, which is named in honor of Swiss businessman and humanitarian Henri Dunant, will be a four-fiber pair cable system spanning over 6,400km from Virginia Beach to the French Atlantic coast.

Google has selected TE SubCom to build the Dunant submarine cable system. Activation is expected in late 2020.

Henri Dunant was the founder of the Red Cross and recipient of the first Nobel Peace Prize.




Tuesday, March 19, 2019

Google's Stadia cloud gaming service promises low-latency

Google unveiled its Stadia cloud gaming service at the Game Developers Conference (GDC) in San Francisco.

Stadia is a cloud streaming service "for all types of devices capable of running a Chrome browser" and not requiring a gaming console.

Stadia will launch later this year in the U.S., Canada, UK, and Europe. Stadia will support up to 4K HDR at 60 FPS. An Internet connection of at least 25 Mbps downstream is required. Eventually, Stadia expects to support up to 8K resolutions and 120 fps. In addition to the 4K 60 FPS connection to the player, the Stadia network can also deliver a 4K 60 FPS stream to YouTube so that the action can be saved and shared as a video.

To deliver the service, Google will leverage its global backbone and its 8,500 edge node locations around the world. Google is working with AMD to produce a 10.7 teraflop GPU that will be custom servers its data centers and edge locations.



Sunday, February 24, 2019

Cisco teams with Google Station on public Wi-Ri

Cisco is working with Google Station to bring improved Wi-Fi infrastructure to public transit locations.

Google Station, which got underway a few years ago in a partnership with railways in India, is a free service to the public supported with a revenue share with the venue based on the ability to monetize the service. Google operates the network and provides quality assurance support.

Google Station is currently active in India, Mexico, Nigeria, Indonesia, Thailand, and the Philippines.

Specifically, Cisco and Google Station intend to work together to:


  • Provide access to capital via Cisco financing
  • Simplify operations by combining Cisco networking technology and integration services with Google network management
  • Improve experience through secure, fast, reliable Wi-Fi that’s easy to access

“We chose to work with Cisco on the Google Station initiative because they offer the networking technology, finance capabilities and global reach to enable sustainable public Wi-Fi,” said Mahesh Bhalerao, global director of partnerships, Next Billion Users at Google. “We share the belief that making Wi-Fi truly sustainable is an important puzzle piece in solving global connectivity issues.”

Tuesday, February 19, 2019

Google to acquire Alooma to simplify cloud migration

Google agreed to acquire Alooma, a start-up specializing in cloud data migration. Financial terms were not disclosed.

Alooma, which is based in Tel Aviv with an office in Redwood City, California, helps enterprise companies streamline database migration in the cloud with an innovative data pipeline tool that enables them to move their data from multiple sources to a single data warehouse. Alooma was backed by Sequoia and Lightspeed Venture Partners. Alooma was co-founded by Yoni Broyde and Yair Weinberger.

Google said the acquisition enables it to ofer customers "a streamlined, automated migration experience to Google Cloud, and give them access to our full range of database services, from managed open source database offerings to solutions like Cloud Spanner and Cloud Bigtable."

Wednesday, February 13, 2019

Google commits $13 billion to U.S. data centers and offices in '19

Google plans to invest $13 billion throughout 2019 in data centers and offices across the U.S., with major expansions in 14 states. This follows $9 billion invested in 2018 in data centers and office facilities.

For 2019, the investments will include data centers and offices across the U.S., with major expansions in 14 states.

In a blog post, Google CEO Sundar Pichai notes that Google is:

  • expanding its presence in Chicago.
  • developing new data centers in Ohio and Nebraska
  • expanding its Wisconsin office
  • doubling its workforce in Virginia
  • opening a new office in Georgia
  • expanding data centers in Oklahoma and South Carolina
  • developing a new office and data center in Texas
  • building a new office o=in Massachusetts
  • building its new Google Hudson Square campus in NYC
  • opening a new data center in Nevada
  • expanding its office in Washington
  • developing new offices in Los Angeles including the Westside Pavillion, and the Spruce Goose Hangar.


https://www.blog.google/inside-google/company-announcements/investing-13-billion-2019/


Thursday, February 7, 2019

Google picks Equinix for Curie Subsea Cable Landing Station

Google has selected an Equinix data center in El Segundo, California as the cable landing station (CLS) for the new Curie subsea cable system.  In the U.S., the cable will land directly at the Equinix LA4 International Business Exchange (IBX) data center.

The Curie cable is expected to go live in 2019.

Equinix said the CLS configuration is ideal for extending the backhaul capacity of a subsea cable system directly to the ecosystems of companies in its high-density IBX data centers. The architecture provides easy access to a dense, rich ecosystem of networks, clouds and IT service providers.

Equinix has been selected as an interconnection partner in more than 25 of the current subsea cable projects.

"With the significant increase in global data traffic, we see corporations running global businesses demanding access to high-capacity, low-latency networks capable of connecting them to data centers across oceans with stringent levels of reliability. Any user of a subsea cable system that lands inside one of our Equinix global data center termination points has instant, low-latency access to a host of vibrant industry ecosystems inside Equinix, and that's a huge advantage," stated Jim Poole, Vice President, Business Development, Equinix.


Google commissions own subsea cable from CA to Chile

TE Subcom has been awarded a contract by Alphabet, the parent company of Google, to build a subsea cable from California to Chile. A ready-for-service date is expected in 2019.

The Curie Submarine Cable will be a four fiber-pair subsea system spanning over 10,000 km from Los Angeles to Valparaiso. It will include a branching unit for future connectivity to Panama.

The project is believed to be the first subsea cable to land in Chile in 20 years.

“We’re proud to provide comprehensive services to Google on this project. Leveraging existing TE SubCom infrastructure through our SubCom Global Services (SGS) options put us in position to be a true partner to them. Our role in the continued growth of global connectivity and information sharing is a point of substantial pride for the TE SubCom team,” said Sanjay Chowbey, president of TE SubCom.

Tuesday, December 11, 2018

Google on Building an Open Service Mesh in a Multi-Cloud World



We increasingly find ourselves in a world with many cloud edges, says Prajakta Joshi, Sr. Product Manager for Cloud Networking at Google. This includes public clouds, telcos, enterprise networks, and billions of edge devices.

The world is becoming one big distributed edge.

So, how do you deploy services in a multi-cloud world? What if we "SDN-ized" edge services?

The result could be an Open Telco Edge Service Mesh aligned with Google Cloud.

This 3-minute video focuses on the possibilities for a Service Mesh built with Istio and Kubernetes.

https://youtu.be/khhEKs3J91w







Thursday, November 29, 2018

Google Fi expands to IoS

Three years after launching Project Fi, Google is expanding its wireless connectivity service to iPhones.

The service, which has been renamed to Google Fi, provides no-contract connectivity with data coverage in 170 countries and territories, spam protection, and data-only SIMs for additional devices.

Google Fi uses unique technology to seamlessly switch between 3 leading 4G LTE networks and 2 million+ secure Wi-Fi hotspots.

https://blog.google/products/project-fi/bringing-google-fi-more-people-android-and-ios/

Tuesday, November 20, 2018

Google plans EUR 600 million data center in Denmark

Google confirmed plans for a new data center in western Denmark, just outside Fredericia.

The new facility represents an investment of EUR 600 million. Google is securing Power Purchase Agreements with renewable energy sources in Denmark. Construction is expected to be completed in late 2021. This will be Google's fifth data center in Europe, joining sites in Ireland, Finland, the Netherlands and Belgium.

https://www.blog.google/inside-google/infrastructure/breaking-ground-googles-first-data-center-denmark/

Thursday, October 18, 2018

CommScope and Google develop Environmental Sensing for CBRS

CommScope and Google agreed to jointly develop, deploy and operate an Environmental Sensing Capability (ESC) network for the Citizens Broadband Radio Service (CBRS) market.

CBRS spectrum is managed by Spectrum Access Systems (SASs), which require an ESC network to sense radar operation. The ESC will alert the SASs of naval radar operations, so the connected SAS systems can reconfigure spectrum allocations for nearby CBRS devices to operate without interfering with naval activity.


The companies said they will each provide independent SAS services and jointly operate the ESC network. The ESC network is engineered for high availability with the built-in redundancy and fault detection necessary to provide this key enabling capability. As part of this collaboration, both companies share responsibility for overall network design.

Google has developed the ESC sensor and cloud decision engine and will operate the cloud that communicates with each SAS. CommScope will deploy and manage the operation of the physical network. CommScope and Google are working with the FCC and other governmental agencies to obtain certification of the ESC.

“The ESC represents more than a check-the-box capability. To effectively manage spectrum, a SAS relies on accurate ESC notifications - that eliminate false positive readings - from a high availability sensing network,” said Milo Medin, vice president of Wireless Services at Google. “We are excited to work with CommScope toward the success of CBRS.”

“This critical network infrastructure agreement represents a major commitment to CBRS by two major SAS providers and will help to ensure that the opportunities presented by CBRS will soon be realized,” said Ben Cardwell, senior vice president, CommScope Mobility Solutions. “Together, we can bring about a combined ESC network faster and more efficiently, leveraging the combined capabilities of two major companies.”


  • The CBRS band is 150 MHz of 3.5 GHz spectrum, which will be shared by the current incumbents, including federal government radar systems, and new commercial users. CBRS will provide new dynamically-allocated shared spectrum for various use cases such as private networks, fixed wireless access, wireless rural broadband, indoor wireless coverage, the Internet of Things, and additional cellular capacity. The FCC has authorized shared use of the band, which enables the support of commercial wireless services while protecting incumbent use.


Sunday, October 14, 2018

Orange joins Google's Dunant transatlantic cable project

Orange is joining Google's Dunant transatlantic project, which is a 6,600km submarine cable connecting the United States to the French Atlantic coast. The system is expected to be ready for services late 2020.

As the French landing partner, Orange will build and operate the landing station on the French Atlantic coast and provide the backhaul service to Paris. In parallel, Orange will benefit from fiber-pairs with a capacity of more than 30 Tbps per pair.

Commenting on the collaboration, St├ęphane Richard, Chairman and CEO of Orange, said: “I am extremely proud to announce this collaboration with Google to build a new, cutting-edge cable between the USA and France. The role of submarine cables is often overlooked, despite their central role at the heart of our digital world. I am proud that Orange continues to be a global leader in investing, deploying, maintaining and managing such key infrastructure. Google is a major partner for Orange and this project reflects the spirit of our relationship.”

Google to build private "Dunant" cable from Virginia to France

Google is planning a new transatlantic subsea cable system linking the east coast of the United States to Europe to bolster its global network.

Dunant, which is named in honor of Swiss businessman and humanitarian Henri Dunant, will be a four-fiber pair cable system spanning over 6,400km from Virginia Beach to the French Atlantic coast.

Google has selected TE SubCom to build the Dunant submarine cable system. Activation is expected in late 2020.

Henri Dunant was the founder of the Red Cross and recipient of the first Nobel Peace Prize.


Google commissions own subsea cable from CA to Chile

TE Subcom has been awarded a contract by Alphabet, the parent company of Google, to build a subsea cable from California to Chile. A ready-for-service date is expected in 2019.

The Curie Submarine Cable will be a four fiber-pair subsea system spanning over 10,000 km from Los Angeles to Valparaiso. It will include a branching unit for future connectivity to Panama.

The project is believed to be the first subsea cable to land in Chile in 20 years.

Wednesday, August 29, 2018

Google hands over management of Kubernetes project to the community

Kubernetes, which is the container orchestration system introduced by Google in 2014, is taking the next step in its evolution.

Throughout this period, Google has provided the cloud resources that support the project development—namely CI/CD testing infrastructure, container downloads, and other services like DNS, all running on Google Cloud Platform (GCP).

Since 2015, Kubernetes has been part of the Cloud Native Computing Foundation (CNCF) under the direction of the Linux Foundation.

Google said now that Kubernetes has become one of the world’s most popular open-source projects, it is time to hand over control. Google hosts the Kubernetes container registry and last month it served 129,537,369 container image downloads of core Kubernetes components. That’s over 4 million per day—and a lot of bandwidth!

Google will hand over all project operations of Kubernetes to the community (including many Googlers), who will take ownership of day-to-day operational tasks such as testing and builds, as well as maintaining and operating the image repository and download infrastructure.

Under the new plan, Google will make a $9 million grant of GCP credits to the CNCF, split over three years, to cover infrastructure costs. In addition to the world-wide network and storage capacity required to serve all those container downloads, a large part of this grant will be dedicated to funding scalability testing, which regularly runs 150,000 containers across 5,000 virtual machines.

Sunday, August 26, 2018

Google's Super PON could be a game changer

Google is working on a "Super PON" architecture that could improve the economics of fiber-to-the-home deployments, said Claudio DeSanti, Architect at Google Fiber, speaking last week at ADTRAN's Broadband Business Solutions event in Huntsville, Alabama.

Google's foray into last mile fiber access networks dates back to 2010 when it announced plans to challenge the incumbent telcos and MSOs in the U.S. with a Google-branded and delivered gigabit broadband and TV service. Google Access picked Kansas City for its first deployment and opened a public comment process to identify future rollout locations. Nearly 1,100 communities across the country expressed interest in participating in the Google project and nearly 200,000 individuals submitted comments.

DeSanti presented the timeline that eventually took Google Access to 11 cities

Then, in October 2016, the Google Fiber project officially hit the pause button. Craig Barratt, who was CEO of Access, stepped down. The said it would continue rolling out in the cities in it was already present, but that is was pausing operations and laying off workers in many cities where it had once anticipated deploying an FTTH network. Google said its effort had spurred AT&T and others to get serious about FTTH, while holding out the possibility of reentering the market if and when new technology options became available.


De Santi said the major lessons learned from this undertaking were that building infrastructure is complex, especially the lengthy permitting process that varies from city to city, and that last mile construction and outside plant costs represent the bulk of spending, mostly because of labor. Google found aerial FTTH to be prohibitively expensive due to policy restrictions of pole sharing with utility companies.

Regarding future rollouts, DeSanti said Google is now taking a more practical perspective on running the business for profit and sustainability.

In February 2018, Dinesh (Dinni) Jain ws been appointed CEO of Access, the new name for the Google Fiber and Webpass business. Jain most recently served as Chief Operating Officer of Time Warner Cable.

DeSanti said the Super-PON architecture that his team is developing could be a game changer for several reasons. First, it targets a 50 km reach from the Central Office to the subscriber, rather than the 20km target of the current technology. The longer reach is achieved with amplification. This means a larger serving area per CO, and few COs needed to cover a whole city. For a mid-sized U.S. metropolitan area, the current PON architecture requires Google to operate 16 COs. The Super PON might need as few as 3 COs to do the same job. These CO could also be CDN distribution points. No active equipment is deployed outside the CO. It operates over a passive ODN.

Second, the Super PON targets up to 1,024 subscribers, up significantly from the maximum 64-subscriber split available on its current technology. With Super PON, DWDM is used to multiplex multiple channels over a single feeder fiber. DeSanti said few fibers would be needed to support the same number of customers, enabling the deployment of small cables (12-48 fiber cables versus 432-fiber cables). The advantage of smaller cables is that micro-trenching techniques can be used, cutting the time and cost of deployment. Repairs to a fiber cut could also be handled much faster for a 24-fiber cable (under 2 hours) versus 8-hours to repair a 432-fiber cable.

DeSanti noted that Super PON standardization began in January 2018 with a presentation at the New Ethernet Applications group of IEEE 802.3. Last month, IEEE 802.3 approved the formation of a Super PON Study Group. In parallel, Super PON has also been presented to both ITU-T and FSAN, possibly as an NG-PON2 extension. Google has a pre-standard implementation deployed in the field.

An open question is whether Super PON economics leads Google to unpause its Access ambitions.

Monday, July 23, 2018

Google posts another strong quarter with sales up 26%

Alphabet reported revenue of $32.657 billion for its Q2 ended 30-June-2018 up 26% versus the second quarter of 2017 and 23% on a constant currency basis.

"We delivered another quarter of very strong performance, with revenues of $32.7 billion, up 26% versus the second quarter of 2017 and 23% on a constant currency basis. Our investments are driving great experiences for users, strong results for advertisers, and new business opportunities for Google and Alphabet," said Ruth Porat, CFO of Alphabet and Google

Wednesday, July 18, 2018

Google to build private "Dunant" cable from Virginia to France

Google is planning a new transatlantic subsea cable system linking the east coast of the United States to Europe to bolster its global network.

Dunant, which is named in honor of Swiss businessman and humanitarian Henri Dunant, will be a four-fiber pair cable system spanning over 6,400km from Virginia Beach to the French Atlantic coast.

Google has selected TE SubCom to build the Dunant submarine cable system. Activation is expected in late 2020.

Google said it continues to consider three options when considering its subsea connectivity needs: (1) purchasing capacity on existing cables (2) joining a consortium to build new cables (3) building a private cable system. In this case, there is a growing need for capacity between its cloud data center regions in Virginia and Belgium.

“We are proud to be working with Google on this important cable system and to be helping to increase internet performance for all,” said Sanjay Chowbey, president of TE SubCom. “The Dunant cable system will be built using SubCom’s industry-leading A1 cable family, which is optimized for projects compatible with higher DCR. As a leading supplier of submarine cable systems, we look forward to continuing to work with our global partners to create more accessible and faster internet access.”

Henri Dunant was the founder of the Red Cross and recipient of the first Nobel Peace Prize.



https://blog.google/products/google-cloud/delivering-increased-connectivity-with-our-first-private-trans-atlantic-subsea-cable/
http://www.te.com/global-en/about-te/news-center/subcom-dunant-cable-system-google-071618.html

Google commissions own subsea cable from CA to Chile

TE Subcom has been awarded a contract by Alphabet, the parent company of Google, to build a subsea cable from California to Chile. A ready-for-service date is expected in 2019.

The Curie Submarine Cable will be a four fiber-pair subsea system spanning over 10,000 km from Los Angeles to Valparaiso. It will include a branching unit for future connectivity to Panama.

The project is believed to be the first subsea cable to land in Chile in 20 years.

Google joins Havfrue and HK-G subsea cable projects

Google announced its participation in the HAVFRUE subsea cable project across the north Atlantic and in the Hong Kong to Guam cable system, both of which are expected to enter service in 2019.

In addition, Google confirmed that it is on-track to open cloud regions (data centers) in the Netherlands and Montreal this calendar quarter, followed by Los Angeles, Finland and Hong Kong.

HAVFRUE is the newly-announced new subsea cable project that will link New Jersey to the Jutland Peninsula of Denmark with a branch landing in County Mayo, Ireland. Optional branch extensions to Northern and Southern Norway are also included in the design. The HAVFRU system will be owned and operated by multiple parties, including Aqua Comms, Bulk Infrastructure, Facebook, Google and others. Aqua Comms, the Irish cable owner/operator and carriers’ carrier, will serve as the system operator and landing party in U.S.A., Ireland, and Denmark. Bulk Infrastructure of Norway will be the owner and landing party for the Norwegian branch options. The HAFVRUE subsea cable system will be optimized for coherent transmission and will offer a cross-sectional cable capacity of 108Tbps, scalable to higher capacities utilizing future generation SLTE technology. SubCom will incorporate their Wavelength Selective Switching Reconfigurable Optical Add Drop Multiplexer (WSS-ROADM) for flexible wavelength allocation over the system design life. It is the first new cable system in almost two decades that will traverse the North Atlantic to connect mainland Northern Europe to the U.S.A. TE Subcom is the system supplier.

The 3,900 kilometer Hong Kong - Guam Cable system (HK-G) will offer 48 Tbps of design capacity when it comes into service in late 2019. It features 100G optical transmission capabilities and is being built by RTI Connectivity Pte. Ltd. (RTI-C) and NEC Corporation with capital from the Fund Corporation for the Overseas Development of Japan's ICT and Postal Services Inc. (Japan ICT Fund), along with syndicated loans from Japanese institutions including NEC Capital Solutions Limited, among others. In Hong Kong, the cable is slated to land in Tseung Kwan O (TKO) and will land in Piti, Guam at the recently completed Teleguam Holdings LLC (GTA) cable landing station. HK-G will land in the same facility as the Southeast Asia - United States Cable System (SEA-US).

Google also noted its direct investment in 11 cables, including those planned or under construction:

Wednesday, June 27, 2018

Google signs up for platinum membership at Linux Foundation

Google has become a Platinum member of The Linux Foundation, and captured a board seat at the foundation in the process.

Sarah Novotny, the head of open source strategy for Google Cloud Platform, will join The Linux Foundation Board of Directors as Google’s representative.

“Google is one of the biggest contributors to and supporters of open source in the world, and we are thrilled that they have decided to increase their involvement in The Linux Foundation,” said Jim Zemlin, executive director, The Linux Foundation. “We are honored that Sarah Novotny, one of the leading figures in the open source community, will join our board – she will be a tremendous asset.”

“Open source is an essential part of Google’s culture, and we’ve long recognized the potential of open ecosystems to grow quickly, be more resilient and adaptable in the face of change, and create better software” said Sarah Novotny, head of open source strategy, Google Cloud. “The Linux Foundation is a fixture in the open source community. By working closely with the organization, we can better engage with the community-at-large and continue to build a more inclusive ecosystem where everyone can benefit.”

Some of The Linux Foundation open source communities Google supports include Cloud Foundry, Node.js and the Open API Initiative.

Google was also a founding member of the Cloud Native Computing Foundation (CNCF), having created and open sourced CNCF’s popular Kubernetes container orchestration platform, and is a founding member of the Core Infrastructure Initiative, which takes a proactive approach to securing some of the more important software technologies in the world, and the TODO Group, which collaborates on practices, tools, and other ways to run successful and effective open source projects and programs. Moreover, Google has been a leader in Software Defined Networking and other open source networking projects.

In a blog posting, Google highlighted the following open source project it backed:

Google regularly open-sources internal projects


Tuesday, June 5, 2018

The Economic Times: Google dominates in India

Google is building a substantial lead over rivals in India. A report in The Economic Times states that Google Search has more than 90% share of the Indian market and, likewise, YouTube is regularly watched by 80% of online users, and Google's Android OS powers more than 90% of smartphones in the country. Moreover, a mobile payments service called Google Tez quickly captured 60% of transactions a month after its launch in September 2017.

The Economic Times' article states that Google's ambition is to bring everyone in India online through its "next billion users" plan.

https://economictimes.indiatimes.com/tech/internet/google-wants-to-bring-everyone-online-in-india-through-its-next-billion-plan/articleshow/64457134.cms



Monday, May 21, 2018

Google Cloud releases Kubernetes Engine

The Google Kubernetes Engine 1.10 has now entered commercial release.

In parallel to the GA of Kubernetes Engine 1.10, Google Cloud is new features to support enterprise use cases:

  • Shared Virtual Private Cloud (VPC) for better control of network resources
  • Regional Persistent Disks and Regional Clusters for higher-availability and stronger SLAs
  • Node Auto-Repair GA, and Custom Horizontal Pod Autoscaler for greater automation

Google also outlined several upcoming features for its Kubernetes Engine, including the ability for
teams within large organizations to share physical resources while maintaining logical separation of resources between departments. Workloads can be deployed in Google’s global Virtual Private Cloud (VPC) in a Shared VPC model.

Google's Kubernetes Engine will also gain Regional Persistent Disk (Regional PD) support. This will ensure that network-attached block storage has synchronous replication of data between two zones in a region.

https://cloudplatform.googleblog.com/

Tuesday, May 15, 2018

NEC and Google test subsea modulation using probabilistic shaping

NEC and Google have tested probabilistic shaping techniques to adjust the modulation of optical transmission across the 11,000-km FASTER subsea cable linking the U.S. and Japan.

The companies have demonstrated that the FASTER open subsea cable can be upgraded to a spectral efficiency of 6 bits per second per hertz (b/s/Hz) in an 11,000km segment -- representing a capacity of more than 26 Tbps in the C-band, which is over 2.5X the capacity originally planned for the cable, for no additional wet plant capital expenditure. The achievement represents a spectral efficiency-distance product record of 66,102 b/s/Hz.

The field trial was performed with live traffic on neighboring channels.

The companies said their test used near-Shannon probabilistic-shaping at a modulation of 64QAM, and for the first time on a live cable, artificial intelligence (AI) was used to analyze data for the purpose of nonlinearity compensation (NLC). NEC developed an NLC algorithm based on data-driven deep neural networks (DNN) to accurately and efficiently estimate the signal nonlinearity.

"Other approaches to NLC have attempted to solve the nonlinear Schrodinger equation, which requires the use of very complex algorithms," said NEC's Mr. Toru Kawauchi, General Manager, Submarine Network Division. "This approach sets aside those deterministic models of nonlinear propagation, in favor of a low-complexity black-box model of the fiber, generated by machine learning algorithms. The results demonstrate both an improvement in transmission performance and a reduction in implementation complexity. Furthermore, since the black-box model is built up from live transmission data, it does not require advance knowledge of the cable parameters. This allows the model to be used on any cable without prior modeling or characterization, which shows the potential application of AI technology to open subsea cable systems, on which terminal equipment from multiple vendors may be readily installed."

Transpacific FASTER Cable Enters Service with 60 Tbps Capacity

The world's highest capacity undersea cable system has entered commercial service -- six fiber pairs capable of delivering 60 Terabits per second (Tbps) of bandwidth across the Pacific.

FASTER is a 9,000km trans-Pacific cable connecting Oregon and two landing sites in Japan (Chiba and Mie prefectures). The system has extended connections to major hubs on the West Coast of the U.S. covering Los Angeles, the San Francisco Bay Area, Portland and Seattle. The design features extremely low-loss fiber, without a dispersion compensation section, and the latest digital signal processing technology.

Google will have sole access to a dedicated fiber pair. This enables Google to carry 10 Tbps of traffic (100 wavelengths at 100 Gbps). In addition to greater capacity, the FASTER Cable System brings much needed diversity to East Asia, writes Alan Chin-Lun Cheung, Google Submarine Networking Infrastructure.

Construction of the system was announced in August 2014 by the FASTER consortium, consisting of China Mobile International, China Telecom Global, Global Transit, Google, KDDI and Singtel.

Tuesday, March 13, 2018

Google plans free public Wi-Fi in Mexixo

Google is launching free public Wi-Fi at locations across Mexico.

Initially, Google Station will be available in 60+ high-traffic venues across Mexico City and nationwide, including airports, shopping malls and public transit stations. Google plans to reach 100+ locations before the end of the year.

Google already provides public Wi-Fi in India and Indonesia.

See also