基于单光子检测可见光通信加性唯一可分解星座组设计  

Additively Uniquely Decomposable Constellation Group Design for Visible Light Communication Based on Single Photon Detection

作　　者：韩松 张剑[1] HAN Song;ZHANG Jian(Information Engineering University,Zhengzhou 450001,China)

机构地区：[1]信息工程大学,河南郑州450001

出　　处：《信息工程大学学报》2018年第2期158-161,共4页Journal of Information Engineering University

基　　金：国家863计划资助项目(2013AA013603)

摘　　要：针对单光子检测可见光通信多用户系统中多个用户发射信号在接收端混叠致使接收端判决性能差问题,提出一种加性唯一可分解星座组的设计方案。根据多用户单光子检测可见光通信系统的信号模型,将加性唯一可分解星座组的概念引入到该系统的星座设计中,结合基于海林格距离的星座设计准则对发射端星座进行设计,给出一组可行的加性唯一可分解星座组设计方案和相应的最大似然检测算法,仿真验证了该算法性能优于未经设计的普通星座组。Due to the fact that multi-user transmitting signals in the single photon detection VLC system will cause signal aliasing at receiver,a design scheme of additively uniquely decomposable constellation group（ AUDCG） is proposed combining the constellation design criteria based on Hellinger distance. According to the multi-user signal model of single photon detection VLC system,the concept of additive unique decomposable constellation is introduced into the constellation design of the system. Combining with constellation design criteria based on Hellinger distance,the constellation of the transmitter is designed. Then a set of feasible AUDCG constellation and corresponding maximum likelihood detection algorithms are given. Simulation results show that AUDCG is better than the common constellation in performance.

关 键 词：可见光通信 单光子雪崩二极管 泊松信道 星座设计 

分 类 号：TN929.1[电子电信—通信与信息系统]