LDPC Coded MIMO Multiple Access With Iterative Joint Decoding

Joint design of QC-LDPC codes for coded cooperation system with joint iterative decoding

bCollege of Electronic and Information Engineering, Nanjing University of Aeronautics and Astronautics, Nanjing 210016, China; cCollege of Information Science and Engineering, Southeast University, Nanjing 210096, China; dDepartment of Electrical, Electronic and Computer Engineering, University of Pretoria, Tshwane, South Africa; eSchool of Communication Engineering, Nanjing Institute of Techno...

An Iterative Multiuser Detection/Decoding for Nonbinary LDPC Coded MC-MFSK Multiple Access Systems

This paper studies an iterative multiuser detection and decoding for nonbinary low density parity check (LDPC) coded multicarrier M-ary frequency shift keying (MC MFSK) multiple access system to increase system spectral efficiency under specific signal-to-noise ratio. At multiuser detection side, soft metric for each symbol is quantized to 2 levels (2L) or 3 levels (3L) and then pass to the dec...

Design of LDPC-Coded Modulations for Fast Iterative Decoding

In this paper, we propose an EXIT chart-based approach to code design for low-density parity-check (LDPC)coded modulations. In particular, the adopted technique iteratively modifies the LDPC code degree distribution in order to achieve a target bit error rate (BER) at a given (and possibly small) number of iterations. In this paper, we limit ourselves to communication systems on a binary erasur...

Joint Iterative Decoding of LDPC Codes and Channels with Memory

Joint iterative decoding of serially concatenated error control coded CDMA

Joint iterative decoding of multiple forward error control (FEC) encoded data streams is studied for linear multiple access channels, such as code-division multiple access (CDMA). It is shown that such systems can be viewed as serially concatenated coding systems, and that iterative soft-decision decoding can be performed successfully. To improve power efficiency, powerful FEC codes are used. T...