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We introduce an implementation-friendly binary message-passing decoding method for low-density parity-check (LDPC) codes that does not require the degree information of variable nodes or degree dependent parameters. For hard decision decoding, given its low-complexity, the implementation cost for variable node degree information is an important consideration. We develop an estimation method for the...
We consider the design of adaptive hybrid automatic retransmission request (ARQ) with incremental redundancy (IR) in which the transmission rates of different blocks in one hybrid ARQ process can be different. The throughput of adaptive IR hybrid ARQ in block fading channels is formed based on the renewal-reward theorem. Two types of input signals are considered, namely, Gaussian inputs and practical...
We introduce a new binary message-passing decoding method for low-density parity-check (LDPC) codes. The proposed decoding principle does not require the degree information of variable nodes and can be applied to both time invariant and time-variant decoding algorithms. We present the extrinsic error probability analysis and decoding threshold optimization for the new decoding method in both time-invariant...
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