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在分布式无线通信系统中研究了基于Round Robin(RR)的多用户并行调度算法,通过获取多用户分集增益和空间复用增益来提升系统的吞吐量。首先研究了并行Round Robin(PRR)调度算法,它继承了RR公平性好的优点,在仅需少量反馈信息的情况下获得多用户复用增益,但不能够获得多用户分集增益;在此基础上有提出了并行分组Round Robin(PGRR)调度算法及其改进算法(EPGRR),仿真分析表明,二者均能同时获得多用户分集增益和空间复用增益,并可以在系统吞吐量和调度公平性方面取得了较好的折衷。
In the distributed wireless communication system, a round robin (RR) based multi-user parallel scheduling algorithm is studied to improve system throughput by acquiring multi-user diversity gain and spatial multiplexing gain. Firstly, the parallel Round Robin (PRR) scheduling algorithm is studied. It inherits the advantage of RR fairness and obtains multi-user multiplexing gain with only a small amount of feedback information, but can not obtain multi-user diversity gain. Based on this, The Round Robin (PGRR) scheduling algorithm and its improved algorithm (EPGRR) are proposed in parallel. The simulation results show that both of them can achieve multi-user diversity gain and space multiplexing gain at the same time, Sex has made a good compromise.