5 result(s) displayed for DSL (1 - 5 of 5):
By Mae Kowalke, TMCnet Contributor
There was a time when fiber-to the-home was seen as the future of broadband. But all that changed with the introduction of VDSL2 vectoring.
“With a single innovation, the market shifted,” noted Alcatel-Lucent colleagues Paul Spruyt and Dr. Stefaan Vanhastel in a recent blog post, The Numbers are in: Vectoring 2.0 Makes G.fast Faster. “Copper became a valuable commodity again as operators began using their copper assets to deliver fast broadband speeds faster.”
Making that copper even more valuable potentially is the new G.fast standard.
G.fast can increase aggregate bit rates over copper loops shorter than 250 m to fiber speeds of more than 1 Gb/s, the authors explained. It also delivers a cost advantage over deploying fiber directly to the home.
The trouble is that G.fast suffers from crosstalk even more than VDSL2. Tests by Bell Labs on older, unshielded cables in Austria showed that G.fast reached speeds of 500 Mb/s over 100 m when a single line was active, but they fell to a measly 60 MB/s when crosstalk was introduced as a result of a second G.fast line being added.
By Beecher Tuttle
Compensating for the ever-increasing demand for high-bandwidth connectivity is every service provider's number one concern. This is for good reason. Next generation services can help mobile operators limit churn and enable them to tap into new revenue streams and improve their bottom lines.
Unfortunately, completely rebuilding a network is cost-prohibitive for most service providers. This creates a quandary over what to do. One viable option for forward-thinking service providers is IP/MPLS backhaul solutions. These enable carriers to leverage their existing broadband access infrastructure – whether it be microwave, copper (DSL) or fiber-based (GPON). In the process they serve as the foundation for a flexible high-performance network, all without major capital expenditures or increased operating expenses.
Several broadband access solutions currently exist, but most all of them fail to successfully address broadband infrastructure backhaul requirements while leveraging DSL or GPON.
Susan J. Campbell
Driving DSL Network Performance Excellence with Motive Network Analyzer
A dramatic rise in the performance required of digital subscriber line (DSL) networks is being caused by consumer adoption of bandwidth-demanding triple-play services. With the support of new real-time voice and high-definition video services, DSL network lines are now operating closer to their physical limits. This is straining copper and fiber capabilities and making them more vulnerable to quality and stability problems in delivering high quality experiences to individual households.
To meet these challenges, service providers must have the right tools and processes to meet the expectations of customers on DSL networks, while also preventing the escalation of operational expenses (OPEX) in doing so even as migrations to all fiber connections are taking place.
This fall Alcatel-Lucent announced that its Motive Network Analyzer surpassed the 100 customer mark. The big draw for this solution is its ability to enable service providers to identify, diagnose and troubleshoot all DSL problems across fiber and copper that can affect the customers’ experience when leveraging broadband service.