An adaptive handoff priority scheme for wireless MC-CDMA cellular networks supporting realtime multimedia applications

Authors:
Jinfang Zhang;Jon W. Mark;Xuemin (Sherman) Shen
Affiliations:
Centre for Wireless Communications, Department of Electrical and Computer Engineering, University of Waterloo, 200 University Avenue West, Waterloo, Ont., Canada N2L 3G1;Centre for Wireless Communications, Department of Electrical and Computer Engineering, University of Waterloo, 200 University Avenue West, Waterloo, Ont., Canada N2L 3G1;Centre for Wireless Communications, Department of Electrical and Computer Engineering, University of Waterloo, 200 University Avenue West, Waterloo, Ont., Canada N2L 3G1
Venue:
Computer Communications
Year:
2005

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Abstract

An adaptive handoff priority scheme is proposed for a packet switching multicode (MC)-CDMA cellular network supporting realtime multimedia applications. The scheme jointly considers the physical, link and network layer characteristics, and gives service priority to handoff calls by exploiting the transmission rate adaptability of multimedia calls to the available radio resources. Based on the scheme, a call admission region is derived with the estimated cell capacity and the proposed packet scheduling and partial packet integration scheme and used for call admission control and handoff management with the satisfaction of quality of service requirements for all multimedia traffic, where the QoS parameters include the wireless transmission bit error rate, packet loss rate and delay requirement. Simulation results are given to demonstrate the viability of the proposed scheme.