DSL Acceleration: Making It Work

Alcatel-Lucent

Abstract:

The deployment of wireline broadband networks in all developed markets (as well as some emerging markets) has been a spectacular success for both network operators and regulators. In the space of about 15 years, over 1 billions homes have been connected worldwide to always-on services, and the average speed of broadband connections has increased more than tenfold in that time.

But wireline broadband is now at an important crossroads in many countries around the world. The transition to higher speeds (more the 30Mbit/s down-stream) presents a uniquely difficult set of challenges to both network operators and regulators. Resolving those challenges successfully will be vital to ensuring continuing evolution in broadband services.

The dilemmas are especially acute for incumbent wireline operators that serve the market primarily via DSL. First, there is stronger competition from cable MSOs deploying Docsis 3.0. Second, there is the parallel migration of mobile services to broadband, including Ling Term Evolution (LTE). And finally, there is the complex and expensive transition to a fiber-rich access network.

For regulators, meanwhile, the challenge is to develop a plan for next-generation access that preserves or enhances the competitive environment without stifling infrastructure investment or resulting in services that are unaffordable. At the same public objectives for next-generation access, typically calling both for ubiquitous service at a minimum speed and for the broadest possible deployment of 100Mbit/s services.

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