The “White Space” Controversy
Friday, May 23rd, 2008The switching of television to complete digital presentation means that there will be available for use a band of radio-frequency for broadcasting that was previously unused. Although it has not gotten much publicity there is a huge conflict going on between established broadcast media such as major broadcast networks and Internet media such as Microsoft over the use of the previously ignored unlicensed range. This is commonly called “White Space”.
Initial testing of devices that would use white space showed them to be unreliable but subsequent developments have been very encouraging. If Internet companies like Microsoft and Google are allowed to use white space then there could be a revolution in phones, wireless networking, and broadcasting. Very sensitive receivers could be built in phones, computers, games, vehicles and other devices that would work on very low signal strengths. Traditional television networks and media conglomerates have been complaining that this new technology will only bring more confusion and trouble. Devices that transmit too strong a signal or a signal that is beyond the intended band could have unintended consequences on other devices. Similarly, a receiving device that is too sensitive to signals or responds to signals that are beyond its intended range could lead to unintended actions.
The issue is further complicated by the fact that leaving the wavelengths in question unlicensed will allow greater access by entrepreneurs and less control by media giants who can monopolize the rights in auctions if licensed but may allow for many interference problems between devices. In fact some have said if unlicensed that such devices would need to have included a GPS (ground positioning satellite receiver) device that would stop it from interfering with another device using the same wavelength.
Clearly some regulation is needed, for example, of the broadband spectrum that control medical monitoring devices but at the same time the government should not be in the business of granting monopolies and limiting free enterprise. Before any devices come to the market they need to undergo rigorous testing to assure that they are not going to interfere unintentionally with other devices.