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。
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 divi- sion 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 re- quired 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.
作者
冷鹏
曹静
陈巍婷
LENG Peng CAO Jing CHENG Weitin(Department of Information Engineering, Wuhan Business University, Wuhan 430056, China College of Computer Science and Electronic Engineering, Hunan University, Changsha 410082, China)
出处
《量子电子学报》
CSCD
北大核心
2017年第4期499-506,共8页
Chinese Journal of Quantum Electronics
基金
国家自然科学基金
61370096
湖北省教育厅计划指导性项目
B2017278~~
关键词
光通信
数据传输优化
LTE网络
起伏追踪机制
时分多址
马尔科夫信道
optical communication
data transmission optimization
LTE network
ups and downs tracking mechanism
time division multiple access
Markoff channel
