摘要
基于MIMO-OFDM系统,以最小化发射总功率、降低算法复杂度及减少系统反馈量为目标,提出了一种基于分组的自适应比特及功率分配方案。仿真结果表明:自适应分组算法的性能明显优于非自适应算法的性能:同在自适应的情况下,分组自适应算法与未分组自适应算法相比,分组算法降低了算法的复杂度,同时也减少了系统的反馈量。
An adaptive bit and plower allocation algorithm based on grouping for MIMO-OFDM system is proposed in order to minimize the overall transmit power,reduce the complexity and system feedback quantities.Simulation results indicated that the performance of using group adaptive algorithm is obviously superior to that of using unadaptive allocation algorithm. Furthermore,this algorithm has lower complexity and fewer system feedback quantities.
出处
《重庆邮电大学学报（自然科学版）》
2008年第z1期13-15,共3页
Journal of Chongqing University of Posts and Telecommunications(Natural Science Edition)
基金
江苏省自然科学基金资助项目(BK2007237)
