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	Utility-based radio resource optimization for multimedia DS-CDMA systems
	Niu Zhi-sheng ; Wang Lan ; Duan Xiang
	2010-05-06 ; 2010-05-06
关键词	Practical Theoretical or Mathematical/ code division multiple access mobile radio multimedia communication optimisation resource allocation spread spectrum communication/ mobile multimedia DS-CDMA system URRA-EF utility-based radio resource allocation-efficiency focused URRA-UF utility-based radio resource allocation-user focused nonlinear optimization problem/ B6250F Mobile radio systems B6210R Multimedia communications B6150E Multiple access communication B0260 Optimisation techniques
中文摘要	We present a model based on utility functions for radio resource allocation (RRA) in multimedia DS-CDMA systems. We proposed two utility-based RRA algorithm, URRA-EF (utility-based radio resource allocation-efficiency focused) and URRA-UF (utility-based radio resource allocation-user focused). The goal of URRA-UF is to achieve the resource optimization which maximizes the system overall utilities, while URRA-UF has its advantages on providing fairness to users. To avoid high computational complexity of solving nonlinear optimization problems, we reformulate the utility-based RRA problem as a market model so that the optimal resource allocation can be achieved in a distributed manner. Simulation results show that our algorithm is flexible and efficient for mobile multimedia DS-CDMA systems, and the improvement of performance is significant.
语种	中文 ; 中文
出版者	Chinese Inst. Electron ; China
内容类型	期刊论文
源URL	[http://hdl.handle.net/123456789/11004]
专题	清华大学
推荐引用方式 GB/T 7714	Niu Zhi-sheng,Wang Lan,Duan Xiang. Utility-based radio resource optimization for multimedia DS-CDMA systems[J],2010, 2010.
APA	Niu Zhi-sheng,Wang Lan,&Duan Xiang.(2010).Utility-based radio resource optimization for multimedia DS-CDMA systems..
MLA	Niu Zhi-sheng,et al."Utility-based radio resource optimization for multimedia DS-CDMA systems".(2010).

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