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	Software-defined radio based on cortex-A9
	Wei, Xin ; Qi, Xin ; Xiao, Limin ; Shi, Zhiyuan ; Huang, Lianfen ; Shi ZY(施芝元) ; Huang LF(黄联芬)
	2012
关键词	Communication systems Computer operating systems Demodulation Neon Optical variables measurement Optimization Radio receivers Software radio
英文摘要	Conference Name:2012 7th International ICST Conference on Communications and Networking in China, CHINACOM 2012. Conference Address: Kun Ming, China. Time:August 7, 2012 - August 10, 2012.; EAI; IEEE Computer Society; This paper presents an implementation of Software-defined Radio (SDR) system over ARM Cortex-A9 processor. Compared with conventionally used general purpose CPU, e.g. X86 CPU, ARM processors have advantages in both price and power consumption under the same computing capability. Two basic issues of SDR over ARM are investigated: the real-time operation and signal processing efficiency. For the former issue, we select the Linux-based real-time operating system Xenomai, which is built on Cortex-A9 platform. Testing results show that the performance of Xenomai on Cortex-A9 meets the real-time requirement of SDR. Furthermore, the NEON technology of Cortex-A9 is used to optimize the complex signal processing algorithms in communication systems. Soft Demodulation is taken as an example for the optimization, and the experimental results are provided to show the improvement of signal processing efficiency. 漏 2012 IEEE.
语种	英语
出处	http://dx.doi.org/10.1109/ChinaCom.2012.6417585
出版者	IEEE Computer Society
内容类型	其他
源URL	[http://dspace.xmu.edu.cn/handle/2288/86808]
专题	信息技术－会议论文
推荐引用方式 GB/T 7714	Wei, Xin,Qi, Xin,Xiao, Limin,et al. Software-defined radio based on cortex-A9. 2012-01-01.

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