WFI optimized PWGPS for wireless IP networks

Authors:
Xiang Fei;Alan Marshall;Junzhou Luo
Affiliations:
Networks and Distributed System Lab, Department of Electronics and Computer Science, IAM Group, The University of Southampton, Southampton S017 1BJ, England, UK;Advanced Telecommunications Systems Lab, School of Electrical and Electronic Engineering, The Queen's University of Belfast, Northern Ireland, UK;Computer network and Communication Research, Department of Computer Science and Engineering, Southeast University, P.R. China
Venue:
Computer Communications
Year:
2004

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Abstract

The worst-case fairness index (WFI) has proved to be an important metric in the provision of fairness and bounded delay in both wired and wireless networks. A feature of wireless links is location dependent burst errors that result in degraded WFI. This paper firstly analyzes the provision for WFI with existing wireless packet scheduling techniques, and based on this, a WFI optimized Packetized Wireless Generalized Processor Sharing (PWGPS) is proposed. This wireless packet scheduling algorithm aims to improve the accuracy of traditional PWGPS and reduce the WFI for real time traffic in wireless IP networks system. The detailed algorithm and simulation results are given. Analysis and simulations show that the WFI optimized PWGPS proposed can improve the WFI for real time flow while at the same time maintain low complexity.