Pre-RAKE Algorithm Based on Space Time Block Coding
Wenbo Wang · Beijing Youdian Xueyuan xuebao · 2003
An enhanced STBC algorithm by Pre-Rake technique is proposed for the time-division duplex (TDD) CDMA system. By theoretical analysis and simulation, the new algorithm achieves both transmit diversity gain and multipath diversity gain. Further more, Pre-RAKE simplifies the receiver of mobile unit, it also reduce the multiple-access interference. The effects of vehicular speed are also presented in the paper. Simulation results show that Pre-RAKE scheme gives a close performance to the RAKE combiner.