摘要
An optimal linear precoding scheme based on Particle Swarm Optimization(PSO),which aims to maximize the system capacity of the cooperative transmission in the downlink channel,is proposed for a multicell multiuser single input single output system.With such a scheme,the optimal precoding vector could be easily searched for each user according to a simplified objective function.Simulation results show that the proposed scheme can obtain larger average spectrum efficiency and a better Bit Error Rate(BER) performance than Zero Forcing(ZF) and Minimum Mean Square Error(MMSE) algorithm.
An optimal linear precoding scheme based on Particle Swarm Optimization （PSO）, which aims to maximize the system capacity of the cooperative transmission in the downlink channel, is proposed for a multicell multiuser single input single output system. With such a scheme, the optimal precoding vector could be easily searched for each user according to a simplified objective function. Simulation results show that the proposed scheme can obtain larger average spectrum efficiency and a better Bit Error Rate （BER） performance than Zero Forcing （ZF） and Minimum Mean Square Error （MMSE） algorithm.
基金
Supported by the National Natural Science Foundation of China(No. 60972041,No. 60572130)
Open Research Foundation of National Mobile Communications Research Laboratory,Southeast University,Natural Science Fundamental Research Program of Jiangsu Universities(No. 08KJD510001)
Ph.D.Program Foundation of Ministry of Education(No.200802930004)
National Special Project (No.2009ZX03003-006)
the Science Foundation of Henan University of Technology(No.09XGG010)
