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Performance analysis of ultrawideband time-hopping code division

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Performance analysis of ultrawideband time-hopping code division Powered By Docstoc
					
				
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posted:9/21/2010
language:English
pages:5
Description: CDMA (Code Division Multiple Access) is used in wireless communications technology, CDMA allows all users to simultaneously use all bands (1.2288Mhz), and the other user signals as noise do not have to take into account the signal collision (collision) problem. CDMA's advantages include: CDMA provided in the speech coding technology, the voice quality better than the current GSM, but also the surrounding environment when the user dialogue, noise reduction, to make calls clearer.