Wireless Delay Proportional Service (WDPS) Scheduling Algorithm for Differentiated Service in Wireless Networks with Location-Dependent Errors

Sang-Jo YOO  Yun-Ho KO  Jae-Cheol KWON  

IEICE TRANSACTIONS on Communications   Vol.E86-B   No.4   pp.1336-1345
Publication Date: 2003/04/01
Online ISSN: 
Print ISSN: 0916-8516
Type of Manuscript: PAPER
Category: Network
wireless scheduling,  delay proportional service,  Internet QoS,  DiffServ,  location-dependent error,  

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This paper proposes a wireless scheduling algorithm that can provide the Internet with delay proportional differentiated services in wireless networks. When considering wireless network environments that include burst and location-dependent channel errors, the proposed WDPS (Wireless Delay Proportional Service) scheduling algorithm can adaptively serve packets in class queues based on the delivered delay performance for each class. The significant characteristics of the WDPS scheduler include support for a fair relative delay service, the provision of graceful throughput and delay compensations, and the avoidance of class queue-blocking problems. Simulations show that the proposed algorithm can achieve the desirable properties for providing delay proportional services in wireless networks.