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分析了两跳中继算法在移动自组织网络中的时延性能.通过计算几何随机过程的平均转移步数和随机变量联合概率密度分布,得到了传递时延上界的闭合表达式,并给出了最优发送副本数;基于平均剩余服务时间,对端到端时延性能进行了理论推导;给出数值仿真结果,直观地展现了时延性能随网络规模和业务负载的变化趋势.
The delay performance of two-hop relay algorithm in MANET is analyzed. By computing the average number of transition steps and the joint probability density distribution of random variables, the closed-form expression for the upper bound of the propagation delay is obtained, The optimal number of transmitted copies is obtained. Based on the average remaining service time, the theoretical performance of the end-to-end delay is theoretically deduced. Numerical simulation results are presented to show the trend of delay performance with the network size and service load.