Date Added: Nov 2009
A large demand of frequency allocation has fuelled the Multi-carrier system, resulting in a crowded spectrum as well as simultaneous access being required by a large number of users. Existing wireless systems may utilize single frequency, single antenna and pulse for carrier transmission and reception. Problems of such system is that in case of failure the total system will become non operational. A distributed system in terms of multi-carrier, multi-antenna and coded pulse can provide a more suitable communication this give rise to OFDM-MIMO/hybrid technology as the ultimate solution. This technology is a promising technique for high-data-rate broadband wireless communications and radar because it can reduce interference, multipath effect, jamming and higher target resolution as compared to conventional communication & radar etc.