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LTE中DRX节能策略的系统建模及性能优化

, PP. 1615-1623

Keywords: 计算机应用,LTE,节能策略,休眠延迟,多重休假排队

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Abstract:

兼顾LTE(Longtermevolution)通信技术中移动终端的节能效果和响应速度,提出了一种带有休眠延迟机制的非连续接收DRX(Discontinuousreception)节能策略。考虑到网络中实际缓存容量的有限性,建立了一个带有休假延迟和启动阶段的多重休假有限容量排队模型,综合使用嵌入Markov链方法和补充变量的方法,导出系统阻塞率、能量节省率和数据帧延迟等指标表达式。结合数值实验和仿真实验,揭示了不同指标之间的折衷关系。对DRX中的休眠延迟器长度和系统容量大小进行了优化设置,为无线通信网络节能策略的改进及优化提供了理论依据。

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