White spaces (radio)

‘White-spaces’ wi-fi trial in TV spectrum

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A consortium including Microsoft, BBC, BT and BSkyB today announced a trial of the use of white-space spectrum for wireless broadband. The trial, mirroring a US trial on Microsoft’s Seattle campus, will start on Wednesday. In contrast to existing licence exempt wi-fi networks that use 2.4 GHz spectrum, the trial’s use of sub-1GHz ‘sweet spot’ spectrum (currently used for …

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Cognitive radio: the road to mobile broadband delivery, or the path to anarchic interference?

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For those who are not familiar with the term, cognitive radio (also sometimes described as white-space radio) describes a way of using radio spectrum in which unlicensed devices do not use particular assigned frequencies but rather constantly assess the available spectrum, determine which parts of it are currently unused and make use of that spectrum to transmit …

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