LTE中DRX节能策略的系统建模及性能优化

doi:10.13229/j.cnki.jdxbgxb201505034

吉林大学学报(工学版) ›› 2015, Vol. 45 ›› Issue (5): 1615-1623.doi: 10.13229/j.cnki.jdxbgxb201505034

LTE中DRX节能策略的系统建模及性能优化

王志衡¹, 霍占强¹, 金顺福²

1.河南理工大学计算机科学与技术学院,河南焦作 454000;
2.燕山大学信息科学与工程学院,河北秦皇岛 066004

收稿日期:2014-12-16 出版日期:2015-09-01 发布日期:2015-09-01
通讯作者: 霍占强(1979-),男,副教授,博士.研究方向:网络通信技术.E-mail:hzq@hpu.edu.cn
作者简介:王志衡(1983-）,男,副教授,博士.研究方向:图像处理技术,数学建模及优化方法.E-mail:wzhenry@eyou.com
基金资助:
国家自然科学基金项目(61472342)

System modeling and performance optimization for the power saving strategy of DRX in LTE

WANG Zhi-heng¹, HUO Zhan-qiang¹, JIN Shun-fu²

1.College of Computer Science and Technology, He'nan Polytechnic University, Jiaozuo 454000, China;
2.School of Information Science and Engineering, Yanshan University, Qinhuangdao 066004, China

Received:2014-12-16 Online:2015-09-01 Published:2015-09-01

摘要/Abstract

摘要： 兼顾LTE(Long term evolution)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(Discontinuous reception)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。

关键词: 计算机应用, LTE, 节能策略, 休眠延迟, 多重休假排队

Abstract: In order to reduce the energy consumption and increase the response speed of the mobile stations in Long Term Evolution (LTE) communication technology, a novel power saving strategy is proposed in Discontinuous Reception (DRX) with sleep-delay mechanism. Considering that the system buffer is finite in practice, a multiple-vacation queuing model with a sleep-delay period and a waking-up procedure is built. Using the methods of embedded Markov chain and supplemental variable, the formulas of the system block ratio, the energy saving ratio and the latency of data frames are given. Combining the numerical experiments with analysis and simulation, the trade-off between different performance measures is investigated. Finally, the time length of the sleep-delay period and the buffer capacity in DRX are optimized. The results of this research have potential applications in the improvement and optimization of the energy saving strategy in wireless communication networks.

Key words: computer application, LTE, power saving strategy, sleep-delay, multiple vacation queueing model

中图分类号:

TP393

王志衡, 霍占强, 金顺福. LTE中DRX节能策略的系统建模及性能优化[J]. 吉林大学学报(工学版), 2015, 45(5): 1615-1623.

WANG Zhi-heng, HUO Zhan-qiang, JIN Shun-fu. System modeling and performance optimization for the power saving strategy of DRX in LTE[J]. 吉林大学学报(工学版), 2015, 45(5): 1615-1623.

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LTE中DRX节能策略的系统建模及性能优化

System modeling and performance optimization for the power saving strategy of DRX in LTE

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