標題: Accumulate Codes Based on 1+D Convolutional Outer Codes
作者: Chiu, Mao-Ching
Lu, Hsiao-feng (Francis)
電信工程研究所
Institute of Communications Engineering
關鍵字: Low-density parity-check (LDPC) codes;accumulate codes;convolutional codes
公開日期: 1-Feb-2009
摘要: A new construction of good, easily encodable, and soft-decodable codes is proposed in this paper. The construction is based on serially concatenating several simple 1+D convolutional codes as the outer code, and a rate-1 1/(1 + D) accumulate code as the inner code. These codes have very low encoding complexity and require only one shift-forward register for each encoding branch. The input-output weight enumerators of these codes are also derived. Divsalar's simple bound technique is applied to analyze the bit error rate performance, and to assess the minimal required signal-to-noise ratio (SNR) for these codes to achieve reliable communication under AWGN channel. Simulation results show that the proposed codes can provide good performance under iterative decoding.
URI: http://dx.doi.org/10.1109/TCOMM.2009.02.060165
http://hdl.handle.net/11536/7713
ISSN: 0090-6778
DOI: 10.1109/TCOMM.2009.02.060165
期刊: IEEE TRANSACTIONS ON COMMUNICATIONS
Volume: 57
Issue: 2
起始頁: 311
結束頁: 314
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