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The optimum switching thresholds that maximize the throughput are found. Theoretic analysis and numerical results indicate that VS-AM-SR-ARQ system can get good performance in fading channels.
理论分析和数值计算结果表明，可变包长可变调制方式的ARQ系统可以更好地适应衰落信道，其吞吐量性能要优于普通的ARQ系统。
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