DocumentCode :
3241988
Title :
Flexible packet scheduling for quality of service provisioning in wireless networks
Author :
Chen, Wen-Tsuen ; Shih, Kun-Cheng ; Chiang, Jeng-Long
Author_Institution :
Dept. of Comput. Sci., Nat. Tsing Hua Univ., Hsinchu, Taiwan
fYear :
2002
fDate :
17-20 Dec. 2002
Firstpage :
381
Lastpage :
387
Abstract :
This paper presents a novel wireless scheduling mechanism, called Adaptive Service Curve (ASC). The proposed mechanism increases the flexibility with which network operators can adjust the allocation of resources. A good scheduler should exhibit three kinds of flexibility. First, ASC should be able to differentiate the error resilience requirements due to the impact of location-dependent channel errors in wireless networks. Specifically, ASC can employ link adaptation, enabling a choice to be made between maximizing system throughput and making more link effort on error-prone channels. Second, the above flexibility is not system-wide. Rather users can subscribe to different error resilience policies. ASC utilizes the service curve model that can best meet QoS requirements to provide the third kind of flexibility, and prevents an unacceptable over-allocation of radio resources. Accordingly, a framework is proposed to make the existing service curve model operate effectively in wireless environments. The ASC scheduler combines in a single-framework the three aspects of scheduling, namely, link adaptation, flexibility and a mature traffic characterization model. This design represents a complete solution for wireless resource management.
Keywords :
quality of service; scheduling; wireless LAN; Adaptive Service Curve; error resilience; packet scheduling; scheduling; traffic characterization; wireless networks; wireless resource management; wireless scheduling; Intelligent networks; Processor scheduling; Quality of service; Resilience; Resource management; Scheduling algorithm; Telecommunication traffic; Throughput; Traffic control; Wireless networks;
fLanguage :
English
Publisher :
ieee
Conference_Titel :
Parallel and Distributed Systems, 2002. Proceedings. Ninth International Conference on
ISSN :
1521-9097
Print_ISBN :
0-7695-1760-9
Type :
conf
DOI :
10.1109/ICPADS.2002.1183428
Filename :
1183428
Link To Document :
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