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[Other] LDGMSeriallyconcat DL : 0: This paper is about serially concatenated LDGM codes for MIMO channel. The ability of Serially-Concatenated Low Density Generator Matrix (SCLDGM) codes to approach the capacity of ergodic Multiple-Input Multiple-Output (MIMO) channels is investigated. The paper explains how to design good SCLDGM codes using EXtrinsic Information Transfer (EXIT) analysis and optimum detection.
Date : 2025-07-04 Size : 209kb User : mike zhou
[Program doc] boundsonLDPCandLDGM DL : 0: The paper is about bounds for LDPC and LDGM codes under MAP. A new method for analyzing low density parity check (LDPC) codes and low density generator matrix (LDGM) codes under bit maximum a posteriori probability (MAP) decoding is introduced. The method is based on a rigorous approach to spin glasses developed by Francesco Guerra. It allows to construct lower bounds on the entropy of the transmitted message conditional to the received one. Based on heuristic statistical mechanics calculations, we conjecture such bounds to be tight. The result holds for standard irregular ensembles when used over binary input output symmetric channels. The method is first developed for Tanner graph ensembles with Poisson left degree distribution. It is then generalized to ‘multi-Poisson’ graphs, and, by a completion procedure, to arbitrary degree distribution.
Date : 2025-07-04 Size : 447kb User : mike zhou
[matlab] ldpc DL : 1: ldpc码在AWGN信道下的性能仿真。包括geth.m,getG.m,H2G.m,decode.m,BER.m按传统的编码方案编码，生成H矩阵后转化为G矩阵，编码后送入高斯信道。仿真得到BER性能-ldpc codes in the AWGN channel performance simulation. Including geth.m, getG.m, H2G.m, decode.m, BER.m coded according to the traditional encoding scheme to generate H matrix is transformed into G matrix encoded into the Gaussian channel. Simulation, the BER performance
Date : 2025-07-04 Size : 67kb User : 熊路
[matlab] decodeLogDomain_LDGM DL : 0: LDGM decoder function for Matlab.
Date : 2025-07-04 Size : 1kb User : Shahriar
[Program doc] LDPC_LDGM_MAtrix_graph DL : 0: matrix for channel coding with ldpc and ldgm and free 4-cycle
Date : 2025-07-04 Size : 12.97mb User : shahram