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基于TDMA起伏追踪机制的LTE 网络数据传输优化算法

Data transmission optimization algorithm of LTE network based on TDMA fluctuation tracking mechanism

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摘要

针对当前LTE网络数据传输优化算法对信道转移判断效率低、带宽占用率高、难以提升数据 传输质量等不足,提出了一种新的LTE网络数据传输优化算法。基于时分多址(TDMA)控制技术,结 合马尔科夫信道转移模型优化了信道带宽偏移轨迹;通过获取激发态-非激发态信道转移概率构建了 起伏追踪机制,对信道转移时的起伏特性进行筛选。仿真结果表明:与当前LTE网络数据传输中常 用的混频载波带通过滤算法、窄带噪声调整自适应过滤算法相比,所提算法进行数据传输所需的 带宽最低,而数据传输质量更高,信道传输性能更好。

Abstract

In order to solve the problems of low channel transfer efficiency, high bandwidth utilization and difficult to improve data transmission quality in the current LTE network data transmission optimization algorithm, a new LTE network data transmission optimization algorithm is proposed. Based on time division multiple access (TDMA) control technology, the channel bandwidth offset is optimized combining with Markoff channel transfer model. The ups and downs tracking mechanism is constructed by obtaining channel transition probability of excited state and non-excited state, and the fluctuation characteristics in channel transfer are selected. Simulation results show that the proposed algorithm has the lowest bandwidth required for data transmission, higher data transmission quality and better channel transmission performance compared with the hybrid carrier band-pass and narrowband noise adjustment adaptive filtering algorithm in the current LTE network data transmission.

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中图分类号:TP393.04

DOI:10.3969/j.issn.1007-5461. 2017.04.020

所属栏目:光通信

基金项目:Supported by National Natural Science Foundation of China (国家自然科学基金, 61370096), Scientific Research Planning Project of Educational Commission of Hubei Province (湖北省教育厅计划指导性项目,B2017278)

收稿日期:2017-04-01

修改稿日期:2017-04-24

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作者单位    点击查看

冷 鹏:武汉商学院信息工程系, 湖北 武汉 430056
曹 静:武汉商学院信息工程系, 湖北 武汉 430056
陈巍婷:湖南大学信息科学与工程学院, 湖南 长沙 410082

联系人作者:冷鹏(LengPnG1980bss@163.com)

备注:冷 鹏 (1980-), 女,湖北武汉人,硕士,副教授,研究方向为网络通信与安全, 计算机科学技术。

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引用该论文

LENG Peng,CAO Jing,CHENG Weiting. Data transmission optimization algorithm of LTE network based on TDMA fluctuation tracking mechanism[J]. Chinese Journal of Quantum Electronics, 2017, 34(4): 499-506

冷 鹏,曹 静,陈巍婷. 基于TDMA起伏追踪机制的LTE 网络数据传输优化算法[J]. 量子电子学报, 2017, 34(4): 499-506

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