基于SSD的MC-TDMA系统抗衰落技术  

The Technology to Fighting Channel Fading of MC-TDMA Based on SSD

作　　者：庄陵[1] 童开蒙[1] 余贝[1] ZHUANG Ling TONG Kai-meng YU Bei(Chongqing Key Laboratory of Mobile Communication Technology, Chongqing University of Posts and Telecommunications, Chongqing 400065, P. R. Chin)

机构地区：[1]重庆邮电大学移动通信技术重庆市重点实验室,重庆400065

出　　处：《科学技术与工程》2016年第31期197-201,共5页Science Technology and Engineering

基　　金：重庆市教委科学研究项目(KJ1500435;KJ1400437)资助

摘　　要：为了应对衰落效应对未来无线网稳定性和可靠性的巨大挑战,提出一种应用信号空间分集(signal space diversity,SSD)的多载波时分多址(multicarrier time division multiple access,MC-TDMA)系统。该系统利用MDFT滤波器组的天然特性,挖掘了MC-TDMA系统内部固有的调制分集增益。理论分析及各环境的仿真表明,SSD-MC-TDMA系统相比经典的MC-TDMA系统不仅具有更强的抗多径衰落能力,而且不会改变其优越的低峰均比(peak to average power ratio,PAPR)性能。To face the challenge to the stability and reliability of the future wireless networks brought with fadingeffect, a Multicarrier Time Division Multiple Access based on technology of Signal Space Diversity was proposed. The System takes advantage of the natural characteristic of the MDFT filter bank, and excavates the internal inher-ent modulation diversity gain of MC-TDMA. Theoretical analysis and simulation results show that SSD-MC-TDMA not only has better performance of fighting channel fading compared with MC-TDMA, but also keep its superiorityon PAPR.

关 键 词：衰落信道 多载波时分多址 滤波器组 信号空间分集 

分 类 号：TN92[电子电信—通信与信息系统]