Differential Space Frequency Mapping Schemes and Norm Criterion  

作　　者：李杰 杨宇航 

机构地区：[1]Dept.of Electronic Eng.,Shanghai Jiaotong Univ., Shanghai 200030, China

出　　处：《Journal of Shanghai Jiaotong university(Science)》2006年第3期328-334,共7页上海交通大学学报（英文版）

摘　　要：This paper proposed four types of differential modulation to map the unitary code into the orthogonal frequency division multiplexing(OFDM) signal. The time-varying channel model is established and the norm of detection metric is deduced. The norm is the inherent interference of the time-varying channel, so it can be used as criterion to evaluate the performance of the mapping schemes. The simulation results agree with the analytic conclusion.This paper proposed four types of differential modulation to map the unitary code into the orthogonal frequency division multiplexing（OFDM） signal. The time-varying channel model is established and the norm of detection metric is deduced. The norm is the inherent interference of the time-varying channel, so it can be used as criterion to evaluate the performance of the mapping schemes. The simulation results agree with the analytic conclusion.

关 键 词：differential modulation space frequency code time-varying channel unitary space-time code 

分 类 号：TN911.3[电子电信—通信与信息系统]