無線信道下 Turbo碼的信噪比估值新算法
A New SNR Estimator Applied to Turbo Codes in Wireless Channel
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摘要: 該文基于高階統(tǒng)計(jì)量的分析提出了用于Nakagami-m衰落信道下信噪比估值的新算法,它比已有算法更加簡(jiǎn)單有效,同時(shí)通過進(jìn)行信噪比估值對(duì)Turbo碼譯碼精度的靈敏性仿真測(cè)試證明了新算法的有效性。Abstract: A new algorithm is put forward on the basis of the higher order statistic analysis, and it is much simpler and more effective than the previous algorithm, and its validity is proved by the sensitivity simulation of SNR estimation to decoding quality of Turbo code.
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王新梅.糾錯(cuò)碼--原理與方法.西安:西安電子科技大學(xué)出版社,2001年4月第3版:505-533. [2]Berrou C, Glavieux A, Thitimajshima P. Near Shannon limit error-correcting coding and decoding: Turbo codes[A]. in Proc.ICC93, Geneva, Switzerland[C], 1993, 5:1064 - 1070.[2]吳偉陵.通向信道編碼的Turbo碼及其性能分析[J].電子學(xué)報(bào),1998,28(7):35-40.[3]孫毅.Turbo碼在移動(dòng)通信中的應(yīng)用[D].[博士論文],北京:北京郵電大學(xué),1999年.[4]Heegard Edward. The Turbo Coding. Boston: Kluwer Academic Publisher, 1999/01/01,1st edition: 121 - 145.[5]Michel Daoud Yacoub, Jose Edson Vargas Bautista, Leonardo Guerra de Rezende Guedes. On higher order statistics of the Nakagami-distribution[J].IEEE Trans. On Vehicular Technology.1999, 48(3):790-[6]Nakagami M. The m-Distribution-A General Formula of Intensity Distribution of Rapid Fading. in Statistical Methods in Radio Wave Propagation, W. C. Hoffman, Ed. Elmsford, NY:Pergamon, 1960:234 - 243.[7]Summers T A, Wilson S W. SNR mismatch and online estimation in Turbo Decoding[J].IEEE Trans. on Communications.1998,46(4):421-[8]Ramesh A, Chockaligam A, Milstein L B. SNR estimation in generalized fading channels and its application to Turbo decoding.IEEE International Conference on Communication, Helsinki,Finland, 2001, Vol 4:1094 - 1098. -
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