一种无线信道状态估计新算法

孟德香; 吴湛击; 吴伟陵

一种无线信道状态估计新算法

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出版历程
- 收稿日期: 2003-09-08
- 修回日期: 2004-05-08
- 刊出日期: 2005-02-19

A New State Estimation Algorithm of Wireless Channel

摘要

摘要: 在实践中,Nakagami衰落信道下的信道状态的估值算法在很多最优化的信号处理技术中都是必需的。该文根据高阶统计量的分析提出一种简单有效的信噪比估值算法,而且首次提出了Nakagami衰落信道下的全盲信道状态估值算法,同时通过进行信道状态估值对turbo码译码精度的灵敏性仿真测试证明了新算法的有效性。
- 衰落信道; turbo码; 信道状态估值; 高阶统计量分析
Abstract: In practice, the channel state in Nakagami fading needs to be estimated for many optimum signal processing techniques. A new algorithm is put forward on the basis of the higher order statistical analysis, which is simple and effective, furthermore, a new all-blind channel state estimation algorithm in Nakagami fading is presented for the first time, and its validity is proved by simulations.

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参考文献(1)

Yacoub M D, Bautistu J E V, Guerra de Rezende Guedes L. On higher order statistics of the Nakagami-distribution[J].IEEE Trans.on Veh. Tech.1999, 48(3):790-[2]Nakagami M. The m-distribution--a general formula of intensity distribution of rapid fading, Statistical Methods in Radio Wave Propagation Conference, W. C. Hoffman, Ed. Elmsford, NY:Pergamon, 1960, 1: 3 - 36.[3]Abdi A, Kaveh M. Performance comparison of three different estimators for the Nakagami m parameter using Monte Carlo simulation[J].IEEE Comm. Lett.2000, 4(4):119-[4]Zhang Q T. A note on the estimation of Nakagami m fading parameter[J].IEEE Comm. Lett.2002, 6(6):237-[5]Greenwood J A, Durand D. Aids for fitting the Gamma distribution by maximum likelihood[J].Technometrics.1960, 2(1):55-[6]Cheng J, Beaulieu N C. Maximum-likelihood based estimation of the Nakagami m parameter[J].IEEE Comm. Lett.2001, 5(3):101-103[7]Cheng J. Generalized moment estimators for the Nakagami fading parameters[J].IEEE Comm. Lett.2002, 6(4):144-[8]Summers T A, Wilson S G. SNR mismatch and online estimation in turbo decoding[J].IEEE Trans. on Comm.1998, 46(4):421-423[9]Ramesh A, Choekaligam A, Milstein L B. SNR estimation in generalized fading channels and its application to turbo decoding,2001 International Conference on Communication, Helsinki,Finland, 2001, 4:1094 - 1098.[10]吴湛击,孟德香,吴伟陵.无线信道下turbo码的信噪比估值新算法[J].电子与信息学报.2005,27(2):181-184浏览[11]Wu Zanji, Meng Dexing, Wu Weiling. On the channel estimation of turbo codes, 2003 International Conference on Communication Technology, Beijing, 2003. [12]Ramesh A, Chockalingam A, Milstein L B. SNR estimation in Nakagami m fading with diversity combining and its application to turbo decoding. IEEE Trans. on Comm., 2002, 50(11): 1719-1724.

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