摘要
为了优化无线通信多用户多址接入信道信息数据存储效果,需有效调控信道容量,提出一种基于无线通信多用户多址接入信道容量控制方法。根据离散信道和高斯信道两种多址接入信道模式,通过其容量域的速率组构成集合的凸闭包。对MIMO系统容量合理分析,设置信道并根据概率的分布使收发信号矢量之间的互信息呈最大化。当发送机无法确定信道参数,按照降序排列特征值,并实施合理运算获得信道容量总和,能够获得最佳的性能,实现对其合理控制。仿真结果表明,所提方法能够使信道容量呈现最大化并且满足用户需求,具有高效性、实用性以及优质的鲁棒性。
In order to optimize the effect of data storage of multi-user multiple access channel in wireless commu⁃nication,the channel capacity needs to be effectively regulated.In this article,a method to control the capacity of multi-user multiple access channel control in wireless communication was proposed.According to the multiple access channel modes such as discrete channel and Gaussian channel,the convex closures of aggregation were formed by the rate groups of its capacity domain.Then,the capacity of MIMO system was analyzed reasonably to set the channel.Meanwhile,the mutual information between the transmitted and received signal vectors was maximized according to the probability distribution.When the transmitter cannot determine the channel parameters,the feature values were arranged in descending order,and a reasonable calculation was carried out to obtain the sum of channel capacities and the best performance.Thus,the reasonable control was achieved.Simulation results show that the proposed method can maximize the channel capacity and thus to meet user demands.This method has high efficiency,practicality and robustness.
作者
熊斐
李季
XIONG Fei;LI Ji(Jiangxi Normal University Science and Technology College,Nanchang Jiangxi 332020,China;Jiangxi University of Finance and Economics,Nanchang Jiangxi 330013,China)
出处
《计算机仿真》
北大核心
2020年第9期149-152,共4页
Computer Simulation
关键词
无线通信
信道容量
信号矢量
Wireless communication
Channel capacity
Signal vector
