Performance analysis of Incremental Redundancy Hybrid ARQ Schemes with Parallel Concatenated LDPC codes*
نویسندگان
چکیده
The character of Parallel Concatenated LDPC codes with rate-compatible is analyzed. An Incremental redundancy hybrid ARQ scheme based on parallel concatenated LDPC codes is introduced. We studied the throughput of the new HARQ scheme and obtained the closed_form solutions. Furthermore, the throughput of the new HARQ scheme is simulated. It shows that for arbitrary block fading channel, comprising AWGN channel, the performance of IRHARQ schemes based on PC-LDPC is same as those based on random LDPC. But the encoding and decoding of PC-LDPC is simpler, and the wider range changing of code rates of PC-LDPC can be obtained than those of random LDPC. * Keyword: Hybrid ARQ, LDPC codes, throughput
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