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	Optimization of CPU resource assignments on embedded multimedia communication terminals
	Qin Bo ; Cui Huijuan ; Tang Kun
	2010-05-06 ; 2010-05-06
关键词	Practical/ embedded systems Linux multi-threading multimedia communication optimisation scheduling/ multimedia communication terminal embedded platform multiple service limited capacity audio quality degradation short-term jitter long-term jitter audio data stream audio communication quality operational capacity scheduling scheme terminal supporting audio still images short messages white board data communication process embedded Linux system CPU resources/ B6210R Multimedia communications B0260 Optimisation techniques C6130M Multimedia C6150N Distributed systems software C1180 Optimisation techniques
中文摘要	When multimedia communications are implemented on embedded platforms, the conflicts between multiple services for limited capacity will lead to the degradation of the audio quality. The short-term and long-term jitter of an audio data stream were used to evaluate audio communication quality and the performance of different operational capacity scheduling schemes. A method was developed to provide better audio communication quality in a multimedia communication terminal supporting audio, still images, short messages, a white board, and other data communication processes on an embedded Linux system. The long-term jitter of the scheme was 33% less than other schemes. The method enables terminals to offer better multimedia communication quality by preferentially assigning CPU resources to real-time services.
语种	中文 ; 中文
出版者	Tsinghua Univ. Press ; China
内容类型	期刊论文
源URL	[http://hdl.handle.net/123456789/11138]
专题	清华大学
推荐引用方式 GB/T 7714	Qin Bo,Cui Huijuan,Tang Kun. Optimization of CPU resource assignments on embedded multimedia communication terminals[J],2010, 2010.
APA	Qin Bo,Cui Huijuan,&Tang Kun.(2010).Optimization of CPU resource assignments on embedded multimedia communication terminals..
MLA	Qin Bo,et al."Optimization of CPU resource assignments on embedded multimedia communication terminals".(2010).

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