| 一种基于异构多核DSP的IEEE 802.11a接收端基带处理的研究和实现* |
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| 引用本文： | 徐力,王沁,史少波.一种基于异构多核DSP的IEEE 802.11a接收端基带处理的研究和实现*[J].计算机应用研究,2012,29(1):241-245. |
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| 作者姓名： | 徐力 王沁 史少波 |
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| 作者单位： | 北京科技大学计算机与通信工程学院,北京,100083 |
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| 基金项目： | 国家“863”计划资助项目（2008AA01Z134）；国家自然科学基金资助项目（61172049，61173150，61003251）；高等学校博士点科研基金资助项目（20100006110015）；北京市教育委员会科研基地共建项目 |
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| 摘 要： | 现有基于异构多核DSP的IEEE 802.11a接收端实现方法中DSP核空闲等待时间较长,不能充分体现多核DSP的高性能计算能力。结合多核DSP的特点,通过核内细粒度流水和核间粗粒度流水的方法,来提高多核DSP的执行效率,并在目标异构多核DSP上实现完整的IEEE 802.11a接收端基带处理。实验结果表明,该方法不仅能满足系统吞吐量和实时性,与类似工作相比还能保证较高的DSP核平均利用率。
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| 关 键 词： | IEEE802.11a 异构多核DSP 软件无线电 接收端基带处理 |
Research and implementation of IEEE 802.11a receiver baseband processing based on heterogeneous multi-core DSP |
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| XU Li,WANG Qin,SHI Shao-bo.Research and implementation of IEEE 802.11a receiver baseband processing based on heterogeneous multi-core DSP[J].Application Research of Computers,2012,29(1):241-245. |
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| Authors: | XU Li WANG Qin SHI Shao-bo |
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| Affiliation: | (School of Computer & Communication Engineering, University of Science & Technology Beijing, Beijing 100083, China) |
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| Abstract: | Nowdays,the DSP core waiting time is longer in some IEEE 802.11a implementations based on multi-core DSP,which can not take full advantage of its high-performace computational capabilities.This paper combined the characteristics of multi-core DSP,using coarse-grained pipeline between DSP cores and fine-grained pipeline in single DSP core to enhance execution efficiency of multi-core DSP.It implemented on target heterogeneous mutli-core DSP with a complete IEEE 802.11a receiver baseband processing.The experiment show that this method not only guarantee the system throughput and real-time,but also improved the DSP core average utilization compared similar works. |
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| Keywords: | IEEE 802 11a heterogeneous multi-core DSP software-defined radio receiver baseband processing |
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