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新型卷积码编码器结构与性能分析

DOI: 10.15918/j.tbit1001-0645.2015.07.011

Keywords: MIMO系统 LDPC卷积码 时变编码器结构 误码率性能

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Abstract:

综合了LDPC和卷积码的特征,给出了一种卷积码编码器结构的改进方法. 利用此方法可构造稀疏卷积码,进一步基于卷积码编码结构可实现高性能译码. 设计了基于MIMO系统平台的时变新型卷积码结构,并进行仿真分析. 结果表明,应用本文提出的卷积码编码器误码率在10-4时比传统卷积码编码器有2 dB的编码增益提高;同时提出的编码器结构还可实现传统卷积码法实现的长约束并行编码,具有实现简单、译码延时小的优势

References

[1]  Berrou C, Glavieux A, Thitimajshima P. Near Shannon limiterror correcting coding and decoding: Turbo codes[C]//Proceedings of IEEE Conference on Communications. Geneva, Switzerland: [s.n.], 1993:1064-1070.
[2]  Gallager R G. Low-density parity-check codes[J]. IRE Transactions on Information Theory, 1962,8(1):21-28.
[3]  Haykin S, Principe J, Sejnowski T, et al. Designing patterns for easy recognition: information transmission with low-density parity-check codes[M]. [S.l.]: New Directions in Statistical Signal Processing: From Systems to Brains, 2007:287-306.
[4]  Xiao H, Banihashemi A, Karimi M. Error rate estimation of low-density parity-check codes decoded by quantized soft-decision iterative algorithms[J]. IEEE Transactions on Communications, 2013,99:1-11.
[5]  Cai F, Zhang X. Relaxed min-max decoder architectures for nonbinary low-density parity-check codes[J]. IEEE Transactions on Very Large Scale Integration (VLSI) Systems, 2012,99:1-14.
[6]  Mackay D J C. Good error-correcting codes based on very sparse matrices[J]. IEEE Transaction on Information Theory, 1999,45(2):399-431.
[7]  Luby M G, Mitzenmacher M, Shokrollahi M A, et al. Improved low-density parity-check codes using irregular graphs[J]. IEEE Trans. on Inf. Theory, 2001,18(2):4.
[8]  Mackay D J C, Neal R M. Near Shannon limit performance of low density parity check codes[J]. Electronics Letters, 1997,33(6):457-458.
[9]  Van Nee R. Breaking the Gigabit-per-second barrier with 802.11AC[J]. IEEE Wireless Communications, 2011,18(2):4.
[10]  3GPP TR 25.913. Requirements for evolved UTRA (E-UTRA) and evolved UTRAN (E-UTRAN)[S]. [S.l.]: 3GPP, 2009.
[11]  IEEE C802.16m-08/074r1. LDPC-convolutional codes for IEEE 802.16m FEC Scheme[S]. [S.l.]: IEEE, 2008.
[12]  IEEE802.16e-2005. IEEE standard for local and metropolitan area networks part 16: air interface for fixed and mobile broadband wireless access systems[S]. [S.l.]: IEEE, 2006.
[13]  Pusane Ali E, Smarandache Roxana, Vontobel Pascal O, et al. Deriving good LDPC convolutional codes from LDPC block codes[J]. IEEE Transaction on Information Theory, 2011,57(2):835-857.

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