Design of Semi-Algebraic Low-Density Parity-Check (SA-LDPC) Codes for Multilevel Coded Modulation
In this paper, semi-algebraic Low-density parity-check (SA-LDPC) codes are proposed for the multilevel coded modulation system. We optimize code parameters of LDPC codes according to the rate of each level by Gaussian approximation. Iterative multistage decoding (IMSD) scheme is adopted to get the significant improvement. System performance with Ungerboeck partitioning (UP) and mixed partitioning (MP) for 8PSK is evaluated respectively over additive white Gaussian noise (AWGN) channels. Many results are presented in this paper, they indicate that in terms of the tradeoff between hardware complexity and system performance, constructed multilevel coded modulation system based on optimized LDPC codes, capacity rule and MP is a good choice for the bandwidth efficient transmission over AWGN channels.
SA-LDPC codes Random MLC IMSD
Yu Yi Jia Hou Moon Ho Lee
Institute of Information & Communications Chonbuk National University, ChonJu, 561-756, Korea
国际会议
成都
英文
931-934
2003-08-27（万方平台首次上网日期，不代表论文的发表时间）