【摘要】 研究了结合自适应调制的选择重传自动重传请求系统(AM-SR-ARQ)在Nakagami衰落信道下的性能,推导出吞吐量的一般表达式.理论分析和数值计算结果表明,结合自适应调制的ARQ系统可以对抗衰落,其吞吐量性能要优于普通的调制方式固定的ARQ系统.更多还原

【Abstract】 The scheme of selective repeat automatic repeat request (SR-ARQ) with adaptive modulation (AM) systems was discussed. And the throughput expression was derived. Theoretic analysis and numerical calculation show that ARQ combined with AM will have a better performance than that of conventional ARQ schemes even if in different Nakagami fading channels.更多还原