Chapter 4 designs a handoff retrieval protocol which saves the call drop based on the Hierarchical Spectrum Sharing Network, theory and simulation results all show that this protocol can reduce the call drop rate on a big scale.
在第四章中,针对主用户使用高峰期认知用户掉话率高的问题设计了一种针对分级频谱共享网络的切换挽救协议,理论分析和仿真结果都表明此协议能大大降低认知用户的掉话率。
参考来源 - 认知无线电中的频谱切换研究·2,447,543篇论文数据，部分数据来源于NoteExpress
The drop call rate as a reflection network performances important target, has been the network optimization work attention key point.
掉话率作为反映网络性能的一项重要指标，一直是网络优化工作关注的重点。
Second, It will be listed and analyzed the general element affecting the Drop-Call rate in this paper, such as coverage, capability, interference and other element outside the network.
然后分别从网络内因和网络外因出发，列举了影响掉话率的常见因素，并且分别从覆盖、容量、干扰及网络外因等角度，对引起掉话的因素进行了深入的分析；
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