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移动中继节点的选择算法是多跳蜂窝网络提升系统吞吐量的关键技术,提出基于多目标优化策略的最优中继选择算法.该算法将带宽和信干噪比两个因素引入中继选择算法中,提升用户吞吐量的同时降低中继节点切换次数.分析动态场景中影响系统吞吐量与中继切换概率的因素,并充分考虑多跳蜂窝网络的移动特性与用户呼叫到达状态,优化参数选择更符合实际工作场景.仿真结果表明该算法与传统算法相比有效提升了用户吞吐量,同时降低了中继切换次数,增强了用户体验.
The selection algorithm of mobile relay node is the key technology to improve system throughput in multi-hop cellular networks and proposes an optimal relay selection algorithm based on multi-objective optimization strategy.This algorithm introduces two factors of bandwidth and SINR into relay selection algorithm , To improve user throughput while reducing the number of relay node handovers.Analysis of the factors that affect the system throughput and relay handover probability in dynamic scenarios and fully consider the mobile characteristics of multi-hop cellular networks and user call arrival status, optimize the parameter selection Which is more in line with the actual working scene.The simulation results show that the proposed algorithm can effectively improve the user throughput compared with the traditional algorithm and reduce the number of relay handover and enhance the user experience.