会议专题

Stability Analysis of MWMS in Downlink SDMA Systems

The stability and delay problems of SDMA (spatial division multiple access) systems with ZFBF (zero-forcing beam-forming) were investigated. It was shown that the MWMS (maximum weighted matching scheduling) is a throughput optimal policy where resources are allocated to maximize a queue-length-weighted sum of the rates. The performances of average delay average queue length and average throughput were evaluated among the queue-aware-only scheduling, the channel-aware-only scheduling, the loosely joint channel-aware and queue-aware scheduling and the optimal MWMS. Simulation results showed that the proposed algorithms can take full advantage of the multi-user diversity gain and provide average delay (or throughput) and fairness improvement compared with the channel-aware-only and queue-aware-only schemes.

spatial division multiple access zero-forcing beam-forming stability scheduling

Kai Sun Wei Huang

College of Electronic Information Engineering, Inner Mongolia University, Hohhot, China

国际会议

2010 International Conference on Bio-inspried System and Signal Processing(2010 IEEE生物系统与信号处理国际会议 ICBSSP 2010)

厦门

英文

208-211

2010-10-26(万方平台首次上网日期,不代表论文的发表时间)