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	Opportunistic Scheduling for Heterogeneous Services in Downlink OFDMA System
	Shen, Jun ; Yi, Na ; Liu, An ; Xiang, Haige
	2009
关键词	CROSS-LAYER OPTIMIZATION WIRELESS NETWORKS
英文摘要	We consider opportunistic scheduling in a downlink OFDMA system to support heterogeneous services. Given the user's queue state information (QSI) and channel state information (CSI), the proposed sum waiting time based scheduling (SWBS) algorithm can guarantee QoS requirements for both real-time (RT) and non-real-time (NRT) service. The benefit is attained from scheduling heterogeneous services based on sum packet waiting time to fulfill the QoS requirements and exploiting multiuser diversity to achieve effective resource utilization. Simulation results illustrate that the max packet loss ratio and packet delay for real-time service and the throughput for non-real-time service are improved by the proposed algorithm.; Computer Science, Information Systems; Engineering, Electrical & Electronic; Telecommunications; EI; CPCI-S(ISTP); 1
语种	英语
DOI标识	10.1109/CMC.2009.30
内容类型	其他
源URL	[http://ir.pku.edu.cn/handle/20.500.11897/261006]
专题	信息科学技术学院
推荐引用方式 GB/T 7714	Shen, Jun,Yi, Na,Liu, An,et al. Opportunistic Scheduling for Heterogeneous Services in Downlink OFDMA System. 2009-01-01.

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