Performance Bound for Finite-Length LDPC Coded Modulation

Huy G. VU, Ha H. NGUYEN, David E. DODDS

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Summary :

Coded modulation systems based on low density parity check (LDPC) codes of finite lengths are considered. The union bounds on the bit error probabilities of the maximum likelihood (ML) decoding are presented for both additive white Gaussian noise (AWGN) and flat Rayleigh fading channels. The tightness of the derived bound is verified by simulating the ML decoding of a very short LDPC code. For medium-length codes, performance of the sum-product decoding can asymptotically approach the bounds.

Publication
IEICE TRANSACTIONS on Fundamentals Vol.E90-A No.12 pp.2975-2978
Publication Date
2007/12/01
Publicized
Online ISSN
1745-1337
DOI
10.1093/ietfec/e90-a.12.2975
Type of Manuscript
LETTER
Category
Communication Theory and Signals

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