Mobile Data Access in Region
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CERNET partners with Huawei to deploy world's largest 100G network
Huawei Technologies Co Ltd. says it has won a bid to deploy the 100-Gbps WDM network for Project 211 (phase 3) of the China Education and Research Network (CERNET). Covering the entire country, the coherent WDM-based 100G network will be the world's largest in terms of geographic coverage, the company claims.Using Huawei’s coherent WDM technology and Optical Transport Network (OTN) equipment, the 100G fiber-optic network will offer a bandwidth of 8 Tbps over a single fiber, a total transmission distance of 11,400 km, and a biggest single span of 913 km without regeneration.The network will allow co-transmission of 100G traffic with the existing 10G traffic, ensuring smooth network upgrades. Full compatibility with the legacy network protects CERNET's investment in network infrastructure, Huawei says."Huawei's deployment of the ultra-long-haul network for CERNET is a significant milestone in 100G’s commercialization," said Cai Changtian, president of transport network product line, Huawei.Huawei says it has deployed over 40 trial and 15 commercial 100G networks to date. According to consulting firm Ovum, Huawei ranked No. 1 in the global optical network market, WDM/OTN market, and 40G network market, as of Q3 2011.
AT&T to expand mobile data access in region
Rural counties running along U.S. Highway 36 are expected to feel the effects of AT&T going the extra mile when it comes to mobile data. Or in this case, the extra 100 miles.Announced on Friday, AT&T has expanded its mobile broadband coverage to allow 3G service to extend along the "Highway of American Genius," from Buchanan to Linn counties.Comparing the days of the Pony Express to that of today, John Sondag, president of AT&T in Missouri, said they are committed to expanding new types of communication throughout the area."Today, fiber-optic cable, mobile communication towers and cutting-edge electronics make up a communications network that provides faster and better communications than anyone dared imagine in the days of the Pony Express," he said.While the expansion of 3G won't mean better coverage for cell phone calls, it will improve faster mobile access to information such as videos, documents and audio, while on the road or near the highway. Areas that will be seeing improvements include Clinton, DeKalb, Caldwell, Livingston and Linn counties."In just five years, AT&T has seen its mobile data traffic increase by about 20,000 percent. We expect that in 2015, mobile data traffic will be eight to 10 times what it was in 2010," he said.With about 10,000 vehicles using the Highway 36 corridor, Mr. Sondag said the expansion fit into the company's goals of getting better data access in rural areas."All of those people that live along that area from Marceline to St. Joe, it will give them access to ... much faster, higher-speed. I just think it's better Internet access to use," he said.For areas far away from the highway, access may vary, meaning businesses or homes planning on getting Internet access through a 3G card may want to check their connection strength first.While he remained vague on future rural communications projects, Mr. Sondag said this is the start of the future of rural communications, with landline phones disappearing and fiber optic lines remaining expensive to install."When you look at the cost per customer ... the land-based service and putting fiber optics in those areas, that is a very difficult thing to make a business case," he said. "We've looked at it and we are convinced that wireless is going to be the way to go."
Southern Photonics, Micram launch 34-GS/s arbitrary waveform generator
Southern Photonics Ltd, a New Zealand-based specialist in high-speed optical test and measurement, in collaboration with Micram Microelectronic GmbH, has launched a 34-GS/s (giga-samples per second) arbitrary waveform generator (AWG). The instrument will be demonstrated for the first time at OFC/NFOEC 2012 in Los Angeles, California on March 6-8, 2012.Co-developed by Southern Photonics and Micram, the AWG-34G is a fully integrated fast AWG system that enables researchers and engineers to generate high-order complex modulation formats, such as 16QAM, at speeds of up to 136 Gbps. The AWG-34G leverages the power of Micram’s VEGA DACII ultrafast signal converter to deliver what the partners claim is the world’s fastest AWG performance of up to 34 GS/s."Currently available bench-top AWGs simply do not have the bandwidth necessary to meet the needs of future communications systems development," said Dr. John Harvey, CEO of Southern Photonics. "By leveraging Micram’s unique ultrafast VEGA signal converter technology, we are enabling researchers to generate any high-speed multi-level electronic signal they require, and convert them into complex modulated optical signals using our IQ Transmitter, which we are also demonstrating at OFC. We can then fully characterize the optical performance with the IQScope, our new Complex Modulation Analysis tool."By offering a complete suite of tools, Southern Photonics says its customers and partners can focus their efforts on their R&D priorities, instead of being distracted by the need to build their own signal generators, sources, or characterization tools.The AWG-34G also incorporates a powerful and intuitive graphical user interface (GUI), the company claims. The AWG-34G generates simple arbitrary waveforms, which can then be easily modified via its integrated “Making Waves” GUI to achieve complex operations such as precompensation for channel dispersion. A built-in library of PRBS patterns enables engineers to generate waveforms for system and device evaluation and optimization."Micram has successfully placed VEGA technology in research labs worldwide, but an increasing number of our customers want a complete turnkey solution for waveform generation," said Dr. Matthias Tom Frei, CEO of Micram. "By partnering with Southern Photonics’ expert software and system design teams, we can now deliver a complete AWG system that fully utilizes the ultrafast speed of our devices in a simple, easy to use package." Southern Photonics and Micram plan to continue working together on future products, he says.Southern Photonics and Micram will be demonstrating the AWG-34G in their respective booths at OFC/NFOEC. Southern Photonics booth is located at 2235 and Micram’s booth is at 2136.
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