An Evaluation on Throughput Performance for Type II Hybrid-ARQ Using Non-binary Rate-Compatible-Punctured LDPC Codes

Takashi KOZAWA  Yasunori IWANAMI  Eiji OKAMOTO  Ryota YAMADA  Naoki OKAMOTO  

Publication
IEICE TRANSACTIONS on Fundamentals of Electronics, Communications and Computer Sciences   Vol.E93-A   No.11   pp.2089-2091
Publication Date: 2010/11/01
Online ISSN: 1745-1337
DOI: 10.1587/transfun.E93.A.2089
Print ISSN: 0916-8508
Type of Manuscript: Special Section LETTER (Special Section on Information Theory and Its Applications)
Category: Coding Theory
Keyword: 
non-binary RCP LDPC code,  Type II Hybrid-ARQ,  OFDM,  Symbol-LLR,  

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Summary: 
In this letter, an NB RCP LDPC (Non-Binary Rate-Compatible-Punctured Low Density Parity Check) code has been designed over the extended Galois Field. The designed code enables us to change the code rate easily by properly puncturing the appropriate symbols from the LDPC mother code. The designed NB RCP LDPC code has been applied to the Type II HARQ (Hybrid Automatic Repeat reQuest) scheme using OFDM (Orthogonal Frequency Division Multiplexing) modulation. The throughput characteristics of the proposed HARQ scheme are evaluated through computation simulation.