通过对竞争请求的冲突概率进行分析，推出了回退窗口和竞争窗口的最佳分配尺寸，并计算了不同业务流数量下系统可达到的最大传输效率。
The optimal backoff window size and contention window size are given, and the transmission efficiency is calculated by analyzing the collision probability of contention request.
仿真结果表明，与平均功率分配算法相比，所提算法能更好地降低系统中断概率，提高传输可靠性。
The simulation results show that the proposed algorithm can achieve lower system outage probability and improves the transmission reliability compared with the algorithm of average power assignment.
然后在这个模型的基础上，分别得到了系统的平均下行传输速率和数据包呼叫请求阻塞概率。
Based on this model, the average downlink transmission rate and the call blocking probability of packets can be obtained.
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