Novel DS/SSMA Systems with Trellis-Coded Sequence and Phase Modulation  

作　　者：Zhang Qing Bi Guangguo(Southeast University,Nanjing 210018) 

出　　处：《通信学报》1995年第4期63-66,共4页Journal on Communications

摘　　要：ＮｏｖｅｌＤＳ／ＳＳＭＡＳｙｓｔｅｍｓｗｉｔｈＴｒｅｌｌｉｓ－ＣｏｄｅｄＳｅｑｕｅｎｃｅａｎｄＰｈａｓｅＭｏｄｕｌａｔｉｏｎＺｈａｎｇＱｉｎｇ；ＢｉＧｕａｎｇｇｕｏ（ＳｏｕｔｈｅａｓｔＵｎｉｖｅｒｓｉｔｙ，Ｎａｎｊｉｎｇ２１００１８）Ａｂｓｔｒａｃｔ...In this paper,a novel TCM scheme,called trellis-coded sequence and phase modulation(TC-SPM),is presented.The coding redundancy is introduced by limiting some of the employed sequences during symbol transmission according to the states of the encoder.The performance comparison shows that the additional gain of 1.1-1.2dB can be achieved by the TC-SPM DS/SS systems over the TC-MPSK DS/SS systems.The application of the TC-SPM to the practical DS/SS systems are studied.The performance of the proposed system on AWGN channels and fading channels are evaluated.

关 键 词：个人通信网 移动系统 移动网络 格码调制 数字传输 

分 类 号：TN914.3[电子电信—通信与信息系统]