Showing posts with label white spaces broadband. Show all posts
Showing posts with label white spaces broadband. Show all posts

Wednesday, November 12, 2008

BPL gets another lease on life

The obituary for Broadband Over Power Lines (BPL) had all but been written when IBM announced it would pony up $9.6 million in a venture with a small company to deploy BPL via electric power cooperatives formed decades ago in areas of the U.S. skipped by private power companies. Today, these same areas are being passed over by the private telco/cable duopoly and left without broadband Internet access.

According to Yahoo! Tech, the BPL rollout will take about two years and potentially serve 340,000 homes in Alabama, Indiana, Maryland, Pennsylvania, Texas, Virginia, and Wisconsin where about 86 percent lack cable or DSL access. The project has received $70 million in low-interest loans from the Department of Agriculture.

Making this project work could prove challenging. BPL utilizes similar transmission technology as DSL that rapidly degrades over distance, requiring extensive and costly amplification to get the signal to homes over long distances.

In addition, by the time this BPL project comes on line, residents of these areas could have superior alternatives such as fixed terrestrial wireless broadband based on multiple current and emerging technologies such as WiMAX and white spaces broadband over unused television frequencies that was given the green light by the Federal Communications Commission last week. And given that these areas have a history of forming cooperatively owned utilities, they may similarly opt to form cooperatives to build fiber optic infrastructure to assure their telecommunications needs are met over the longer term.

Wednesday, November 05, 2008

White spaces broadband faces uncertain future

Expectations should be tempered contemplating the implications of this week's action by the Federal Communications Commission approving the unlicensed use of television broadcast "white spaces" spectrum being freed up by the February 2009 transition to all digital TV broadcasting to deliver wireless broadband.

There are many unknowns as to whether white spaces will ultimately deliver broadband over the airwaves in the real world or whether it will remain an impractical concept that goes the way of Broadband over Power Lines (BPL).

They include a probable years long legal challenge by broadcasters worried over potential interference despite FCC field testing showing otherwise. It should be borne in mind the purpose of the FCC testing was to assess potential interference with broadcast and short range microphone signals. How white spaces broadband will perform and the kind of throughput it can reliably deliver remain major unknowns until it's actually deployed.

White spaces broadband could well end up being too little to late once the legal challenges have run their course given that Clearwire is already rolling out 2.5 Ghz WiMAX in some areas and deployment of 4G wireless broadband by telcos is expected by 2010.

Potential key advantages of white spaces broadband over these other wireless technologies is superior range and greater ability to penetrate trees and buildings since it operates in the 700 Mhz TV spectrum.

An additional challenge could come from telcos who may resist providing the necessary "fat pipe" backhaul for white spaces broadband if they see it as a competitive threat to their own wireline and wireless broadband franchises. That could generate more lengthy litigation such that between Internet Service Providers (ISPs) and telcos over access and pricing of line access under the Telecommuncations Act of 1996.

Finally, all wireless broadband technologies at this point don't appear likely to be able to match the fiber gold standard of 100 Mbs and greater throughputs that will increasingly be in demand for fixed broadband services. For the foreseeable, that relegates wireless broadband -- likely including white spaces broadband if it comes to market -- to a transitional broadband technology for fixed locations in areas unserved and underserved by wireline broadband providers and for general mobile use.