| LTE-A系统软解调算法仿真及DSP实现* |
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| 引用本文： | 陈发堂,梁涛涛,李小文.LTE-A系统软解调算法仿真及DSP实现*[J].计算机应用研究,2011,28(12):4695-4697. |
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| 作者姓名： | 陈发堂 梁涛涛 李小文 |
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| 作者单位： | 重庆邮电大学通信与信息工程学院,重庆,400065 |
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| 基金项目： | 国家科技重大专项项目（2009ZX03002-009) |
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| 摘 要： | 针对3GPP最新发布的LTE-A Relaease10标准,通过对两种软解调算法的仿真比较,权衡时间复杂度和算法性能,选择了一种最适合TD-LTE无线综合测试仪表的软解调算法,并通过TMS32064xDSP实现.提出了一些具体的软件优化策略和技巧,对max-log-map算法进行了大量化简.基于集成化开发环境CCS3.3,编程实现LTE-A软解调算法,运行结果验证了max-log-map算法的可行性、高效性.
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| 关 键 词： | LTE-A log-map max-log-map DSP实现 |
Simulation and DSP realization of soft-metric demodulation algorithm in LTE-A systems |
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| CHEN Fa-tang,LIANG Tao-tao,LI Xiao-wen.Simulation and DSP realization of soft-metric demodulation algorithm in LTE-A systems[J].Application Research of Computers,2011,28(12):4695-4697. |
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| Authors: | CHEN Fa-tang LIANG Tao-tao LI Xiao-wen |
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| Affiliation: | (School of Communication & Information Engineering, Chongqing University of Posts & Telecommunications, Chongqing 400065, China) |
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| Abstract: | Based on the recently released LTE-A R10 standard by 3GPP, this paper researched two soft-metric demodulation algorithms which were used commonly. Balancing the complexity of the time against performance of algorithms, it chose the most suitable internal interleaver algorithm for the TD-LTE wireless integrated test instrument, and realized the algorithm in the TMS32064xDSP. It presented a number of specific strategies and techniques for software optimization and greatly simplified the algorithm of max-log-map .The operation results of the soft-metric demodulation program in CCS3.3 verify that the algorithm of max-log-map is feasible and effective. |
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| Keywords: | long term evolution-advanced(LTE-A) log-map max-log-map DSP(digital signal processor)Realization |
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