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Coherent Technologies – Taking DWDM into the Terabit Age
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Since its commercial introduction in the mid-90s, DWDM has continually responded to the demands of internet growth. In addition to scaling the number of wavelengths supported on a fiber, the data rate of each individual wavelength has grown from less than one gigabit per second, to the current level of 100Gb/s. Each step in this evolution was triggered by a specific technology advance. The leap from 2.5Gb/s to 10Gb/s, for example, was fundamentally enabled by a better understand and control of chromatic dispersion. 10Gb/s then remained the transmission sweetspot for around a decade until the advent of coherent technologies. This next quantum leap in optical transmission consists of advanced modulation, polarization multiplexing, coherent detection and advanced digital signal processing. In this article we discuss the way that these technologies work together to take DWDM into the Terabit Age.
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Focus on a Premium Mobile User Experience
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What is left for the service provider to differentiate themselves from their competition? It is the user experience. Since the playing field has been leveled for mobile devices, the most important thing carriers can do is focus on the user experience to create loyalty and drive revenue. Security is a big part of this picture.
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What Operators Still Need in Next-Generation Transport
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What do operators still need in next generation transport? This article will provide an in-depth look at what operators still need for next generation transport, and Packet Optical Transport Systems (P-OTS) in particular. P-OTS, thought well intentioned, has its weaknesses – and its early promises fell short of its expectations. We will discuss and focus on each of the challenges that exist in early P-OTS implementations by operators. Based on an assessment of these unique challenges, operators and vendors alike are gaining a better picture of what they really need, so that the full benefits of P-OTS can be realized
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It's Time for Mobile-specific Encryption Policies
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Imagine for a moment an attacker has gotten his hands on one of your employees’ smartphones. Perhaps it was forgotten in the backseat of a taxi or fell on the floor of a train on the way home from work. The attacker is able to get past the phone’s screen lock and password – 1234 wasn’t too hard to guess. Here's a look at things to consider when implementing encryption for mobile devices.
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Resilient Synchronous Gigabit Ethernet for True 4G Mobile Backhaul Networks
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A true 4G Ethernet mobile backhaul network must meet three fundamental design requirements – resiliency that provides five 9’s availability, synchronization of real-time services and low-latency, line-rate performance. Here's a look at packet ring resiliency.
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Cloud Holds the Key to Success For Telecom
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By delivering cloud-based services that are managed by a third party, telecommunication companies put themselves in an excellent position to become more competitive and comprehensive in their offerings. Compared to other competitors in cloud services, telecommunication providers bring important assets to the table. Their networks and long-term relationships with their customers in the communications environment have provided them with a great deal of knowledge about their customers' information technology. Combining that knowledge with a service offering to match their needs would give a telecommunication provider an offering unique among its competitors.
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Packet Transport Evolution Strategies: Which Offers the Lowest TCO?
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When it comes to network transformation to converged packet-optical transport networks, it is not a matter of if; it is only an issue of when. But what about “how”? There are many different approaches to the evolving network, from an MSPP evolution strategy all the way to a complete CESR overlay network. What makes the most sense for various key scenarios? This article outlines those strategies, those scenarios and, most importantly, the relative total cost of ownership for each.
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