Tuesday, 24 January 2012
Can turning off Analogue TV make broadband better ?
Global data traffic will increase by 39 times from current levels by 2014 , according to the wireless firm Cisco. This means data traffic of 3.6 exabytes per month which is equivalent to 39 billion gigabytes.
Every device that uses wireless technology uses a part of the spectrum. This includes remote locking car keys and remote controls right through to the latest smartphones or tablets.
With 4G technology and LTE just around, they are expected to provide some relieve some pressure on capacity. However , many see them as just a short term solution.
The radio spectrum is where all wireless communications takes place and has traditionally been ring fenced , with certain services using specific bandwidth. 
TV Channels are in one space , radio in another and telecommunications a third all entirely independent from one another. 
White spaces are the specific frequencies that are not always used within these groups of TV Channels , radio and telecommunications. These white spaces can be utilised by new technology designed to make use of every gap between broadcast .
More spaces are in frequencies are about to open up with the phasing out of analogue TV across the globe. The efficiency of Digital TV has left more spectrum open and white spaces to utilise. 
The range of this signals excites the developers of white space devices as they can permeate buildings in a way Wi-Fi cannot and it provide a neat solution especially in rural areas making information travel over significantly greater areas.
1. BBC News - Can turning off analogue TV make broadband better.mht