基于扩频相位编码的变换域通信系统多址接入能力  

Multiple access capability for spread coding based transform domain communication system

作　　者：孙海欣[1,2] 石要武[2] 于晓辉[2] 

机构地区：[1]长春大学电子信息工程学院,长春130022 [2]吉林大学通信工程学院,长春130022

出　　处：《吉林大学学报（工学版）》2013年第1期223-228,共6页Journal of Jilin University:Engineering and Technology Edition

基　　金：国家自然科学基金项目(51075175;50977037)

摘　　要：为了改善变换域通信系统(Transform domain communication system,TDCS)的多址接入能力,提出基于扩频相位编码(Spread phase coding,SPC)的TDCS方案SPC-TDCS,给出了其系统框架,对扩频序列的选取及扩频基函数的互相关性进行了研究,并对SPC-TDCS的系统性能进行了分析。仿真结果表明,提出的SPC-TDCS具有良好的多址接入能力,同时保证用户间干扰最小。The random phase coding method of Transform Domain Communication System （TDCS） is studied. To improve the multiple access capability, a new Spread Phase Coding TDCS （SPC-TDCS） scheme is proposed. The framework of the SPC-TDCS is given. The selection of the spread sequence and the cross correlation of the spread basic function are studied, the system performances of the proposed SPC-TDCS are analyzed. Simulation results demonstrate that the proposed scheme has good system performance in a multiple access environment and guarantees the minimum interference among different users at the same time.

关 键 词：通信技术 变换域通信系统 随机相位映射 扩频编码 多址接入 

分 类 号：TN914.3[电子电信—通信与信息系统]