| 基于Cyclic-2伪最大似然算法的Turbo乘积码在高速移动通信系统中的译码方法 |
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| 引用本文： | 陈超,罗汉文,徐友云,张乐.基于Cyclic-2伪最大似然算法的Turbo乘积码在高速移动通信系统中的译码方法[J].国际商务研究,2005,45(1):67-71. |
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| 作者姓名： | 陈超 罗汉文 徐友云 张乐 |
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| 作者单位： | 上海交通大学电子工程系 上海200030
(陈超，罗汉文，徐友云)，上海交通大学电子工程系 上海200030(张乐) |
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| 基金项目： | 国家自然科学基金;国家自然科学基金;国家高技术研究发展计划(863计划) |
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| 摘 要： | 采用扩展汉明码作为Turbo乘积码 (TPC)的子码时,与传统的Chase算法相比,Cyclic-2PML(循环 2伪最大似然)算法复杂度低。本文研究了基于该算法的TPC在高速移动通信系统中的译码方法,仿真比较了采用不同子码组合的TPC结合不同的调制方式在高斯信道和多径衰落信道中的性能。结果表明,以(32, 26, 4)扩展汉明码为子码的TPC,不仅具有较高的码率,同时可以获得更好的误比特率性能。
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| 关 键 词： | 移动通信系统 Turbo乘积码 软输入软输出译码 迭代译码 循环2伪最大似然算法 |
Decoding Method of Turbo Product Codes Based on Cyclic-2 Pseudo Maximum Likelihood Algorithm in High-speed Mobile Communication Systems |
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| CHEN Chao,LUO Han-wen,XU You-yun,ZHANG Le.Decoding Method of Turbo Product Codes Based on Cyclic-2 Pseudo Maximum Likelihood Algorithm in High-speed Mobile Communication Systems[J].International Business Research,2005,45(1):67-71. |
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| Authors: | CHEN Chao LUO Han-wen XU You-yun ZHANG Le |
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| Abstract: | Cyclic-2 PML (Pseudo Maximum Likelihood) algorithm is of lower complexity compared with the traditional Chase algorithm when extended hamming code is used as the sub-code of Turbo Product Code(TPC). Based on Cyclic-2 PML algorithm, this paper studies the decoding of TPC in high-speed mobile communication systems, and the performance of TPC with different sub-codes and different modulation types are given for the Additive White Gaussian Noise (AWGN) and multipath fading channels. Simulation results show that TPC with (32,26,4) extended hamming code as sub-code can achieve better Bit Error Rate (BER) with a higher code rate. |
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| Keywords: | Mobile communication system Turbo product code Soft-in soft-out Iterative decoding Cyclic-2 Pseudo maximum likelihood algorithm |
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