摘要： 针对两跳OFDMA Relay网络的特点，将单跳无线网络中3种经典调度算法(轮循(RR)算法、最大载干比(MaxC/I)算法和正比公平(PF)算法)推广到两跳场景中，得到适合两跳中继网的3种二级调度算法E-RR、E-MaxSNR、E-PF。仿真分析表明，3种调度算法的性能比原有算法有较大提升，E-RR能获得好的用户公平性，E-Max C/I可以获得最大的系统吞吐量，E-PF在用户公平性和系统吞吐量间可以取得良好的折中。
关键词:
正交频分多址,
Relay网络,
调度算法,
二级调度
Abstract: Aiming at the characteristics of two-hop OFDMA Relay network, classical packet schedule algorithms(RR, MaxC/I, PF) are extended to two-level schedule algorithms(E-RR, E-MaxSNR, E-PF). Simulation results indicate that the three new two-level schedule algorithms have good system performance compared with the former algorithms. E-RR obtains good performance on user fairness, E-MaxSNR has maximum system throughput and E-PF achieves tradeoff between system throughput and user fairness.
Key words:
OFDMA,
Relay network,
schedule algorithm,
two-level schedule
中图分类号:
王玉金, 王平, 赵雪, 刘富强. OFDMA Relay网络二级调度算法性能分析[J]. 计算机工程, 2010, 36(13): 18-20,23.
WANG Yu-Jin, WANG Beng, DIAO Xue, LIU Fu-Jiang. Performance Analysis on Two-level Schedule Algorithm of OFDMA Relay Network[J]. Computer Engineering, 2010, 36(13): 18-20,23.