基于相似性度量的无线网络数据传输信道优化  

OPTIMIZATION OF WIRELESS NETWORK DATA TRANSMISSION CHANNEL BASED ON SIMILARITY MEASURE

作　　者：朱亚东[1] 严锡君[2] 高翠芳[3] 

机构地区：[1]江苏联合职业技术学院信息中心,江苏南京211135 [2]河海大学计算机与信息学院 [3]江南大学理学院

出　　处：《计算机应用与软件》2017年第6期125-129,共5页Computer Applications and Software

基　　金：国家自然科学基金青年基金项目(61402202)

摘　　要：在无线网络数据传输和通信过程中,由于网间路由的损伤和通信码元之间的码间干扰,导致数据传输信道失衡,需要对无线网络数据传输信道进行抗干扰滤波和均衡设计,实现无线网络数据的高保真性传输。传统方法采用复合链路相干均衡算法进行无线网络数据传输信道优化,随着通信信道载波数量的增长,导致信道均衡稳定性不好。提出一种基于数据通信码元相似性度量的无线网络数据传输信道优化算法,通过构建无线网络系统模型和信道模型,对无线网络的数据信息进行码元相似性度量和特征提取,以此为基础采用IIR滤波算法实现对信道干扰码元的滤波和抗干扰算法改进,实现对无线网络的数据传输信道优化和均衡设计,提高数据通信码的保真性传输能力。仿真结果表明,采用该算法能有效实现无线网络数据传输信道优化构建,信道的均衡性能和抗干扰性能较好,降低了数据传输的误比特率。Abstract In the process of wireless network data transmission and communication, the routing network damage and communication between symbols inter-symbol interference leads to data transmission channel imbalance. In this case, anti-jamming filtering and equalization design is needed for the data transmission channel of the wireless network to realize the high-fidelity transmission of the wireless network data. The traditional method uses the composite link coherent equalization algorithm to optimize the wireless network data transmission channel. With the increase number of carriers in the communication channel, the channel equilibrium stability is not good. In this paper, we propose a data transmission channel optimization algorithm for wireless network based on the similarity metric of data communication. By constructing wireless network system model and channel model, the similarity measure and feature extraction of data information in wireless network are implemented. In this case, we use IIR filtering algorithm to realize the implementation of channel interference symbol filtering and improved anti jamming algorithm. To achieve the data transmission channel optimization and balanced design of the wireless network, and improve the fidelity transmission capability of the data communication code. Simulation results show that the algorithm can effectively realize the optimization of data transmission channel construction of wireless network, and the channel equalization performance and anti-jamming performance is better,reducing the bit error rate of data transmission.

关 键 词：无线网络 通信 信道 数据传输 

分 类 号：TP393[自动化与计算机技术—计算机应用技术]