SERIALLY CONCATENATED CONTINUOUS PHASE MODULATION WITH REDUCED ITERATIVE DEMODULATION AND DETECTION  

作　　者：Sun Jinhua Li Jiandong Jin Lijun 

机构地区：[1]State Key Lab. of Integrated Service Networks, Xidian University, Xi＇an 710071, China

出　　处：《Journal of Electronics(China)》2007年第1期16-22,共7页电子科学学刊（英文版）

基　　金：Supported by NSFC & Microsoft Asia (60372048);China TRAPOYT, NSFC key project (60496316);863 Project (2005AA123910);RFDP (20050701007);MOE Key Project (104171).

摘　　要：A reduced state Soft Input Soft Output (SISO) a posteriori probability algorithm for Seri-ally Concatenated Continuous Phase Modulation (SCCPM) is proposed in this paper. Based on the Reduced State Sequence Detection (RSSD),it has more general form compared with other reduced state SISO algorithms. The proposed algorithm can greatly reduce the state number,thus leads to the computation complexity reduction. It also minimizes the degradation in Euclidean distance with decision feedback in the reduced state trellis. Analysis and simulation results show that the perform-ance degradation is little with proper reduction scheme.A reduced state Soft Input Soft Output （SISO） a posteriori probability algorithm for Serially Concatenated Continuous Phase Modulation （SCCPM） is proposed in this paper. Based on the Reduced State Sequence Detection （RSSD）, it has more general form compared with other reduced state SISO algorithms. The proposed algorithm can greatly reduce the state number, thus leads to the computation complexity reduction. It also minimizes the degradation in Euclidean distance with decision feedback in the reduced state trellis. Analysis and simulation results show that the performance degradation is little with proper reduction scheme.

关 键 词：Concatenated codes Continuous Phase Modulation （CPM） Soft Input Soft Output （SISO） Euclidean distance 

分 类 号：TN911.3[电子电信—通信与信息系统]