Next Generation Wireless Mobile System Efficient, Fair, Class Based Packet Scheduling Algorithm

Authors:
Hussain Mohammed;Pj Radcliffe
Affiliations:
School of Electrical and Computer Engineering, RMIT University, Melbourne, Australia;School of Electrical and Computer Engineering, RMIT University, Melbourne, Australia
Venue:
Wireless Personal Communications: An International Journal
Year:
2013

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Abstract

Efficient utilization of network resources is a key goal for emerging broadband wireless access systems (BWAS). This is a complex goal to achieve due to the heterogeneous service nature and diverse quality of service (QoS) requirements of various applications that BWAS support. Packet scheduling is an important activity that affects BWAS QoS outcomes. This paper proposes a novel packet scheduling mechanism that improves QoS in mobile wireless networks which exploit IP as a transport technology for data transfer between BWAS base stations and mobile users at the radio transmission layer. In order to improve BWAS QoS the new packet algorithm makes changes at both the IP and the radio layers. The new packet scheduling algorithm exploits handoff priority scheduling principles and takes into account buffer occupancy and channel conditions. The packet scheduling mechanism also incorporates the concept of fairness. Performance results were obtained by computer simulation and compared to the well known algorithms. Results show that by exploiting the new packet scheduling algorithm, the transport system is able to provide a low handoff packet drop rate, low packet forwarding rate, low packet delay and ensure fairness amongst the users of different services.