基于先验差分概率的信道估计方法  

Channel estimation method based on prior differential probability

作　　者：王志鹏 李长吾[1] 王智森[1] WANG Zhipeng;LI Changwu;WANG Zhisen(School of Information Science and Engineering, Dalian Polytechnic University, Dalian 116034, China)

机构地区：[1]大连工业大学信息科学与工程学院

出　　处：《大连工业大学学报》2019年第4期307-312,共6页Journal of Dalian Polytechnic University

基　　金：大连市科技计划项目(2015A11GX009)

摘　　要：随着第五代移动通信的到来,无线信号传输速率越来越高,信道带宽越来越大,无线信号在时域和频域的衰落越发明显。信道估计技术是移动通信系统中的关键,其估计的精度与估计的效率直接影响到移动通信系统的性能。为了研究一种计算量小,复杂程度不高的信道估计方法,本研究仿真了第五代通信多载频信号在5G信道中的传输特性。针对载频信号传输的差分概率统计特性提出了一种基于先验差分概率的信道估计方法;设计了数据传输帧结构。仿真实验结果表明该算法在使用较少已知信息的情况下,通过先验差分概率的方法能有效估计信道,性能良好。With the upcoming era of fifth generation communication, the wireless signal transmission rate and the channel bandwidth are increasing, and the decline of wireless signals in the time domain and frequency domain becomes more obvious.The wireless transmission channel and its estimation technology are the keys in the wireless mobile communication system, and the accuracy and efficiency of the estimation will directly affect the performance of the entire communication system. In order to acquire a channel estimation method with low computational complexity and low algorithm complexity, the transmission characteristics of multi-carrier frequency signal in 5G channel were simulated, and a channel estimation method based on prior differential probability for the differential probability statistics characteristics of carrier frequency signal transmission and designed the frame structure of data transmission was proposed. The simulation results showed that the algorithm could estimate the channel effectively using the method of prior differential probability when using less known information.

关 键 词：载频 先验差分概率 信道估计 

分 类 号：TP393[自动化与计算机技术—计算机应用技术]