The New Decoding Method of Rate Compatible LDPC Codes Based on the IR- HARQ schemes

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Provided by: Science & Engineering Research Support soCiety (SERSC)
Topic: Enterprise Software
Format: PDF
The Incremental Redundancy Hybrid ARQ (IR-HARQ) scheme which can get better performance than that of other HARQ requires that the FEC is Rate Compatible (RC) codes. A new decoding method based on IR-HARQ scheme that uses rate-compatible LDPC codes as the FEC codes is presented in this paper. This method can use the former decoding result, which can improve the performance of decoding scheme. This paper also evaluates the new decoding method by simulation. The results show that better performance both on system throughput and iterative numbers can be obtained.
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