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Radio Resource Management for Cellular CDMA Systems Supporting Heterogeneous Services
April-June 2003 (vol. 2 no. 2)
pp. 147-160

Abstract—A novel radio resource management (RRM) scheme for the support of packet-switched transmission in cellular CDMA systems is proposed by jointly considering the physical, link, and network layer characteristics. The proposed resource management scheme is comprised of a combination of power distribution, rate allocation, service scheduling, and connection admission control. Power distribution allows individual connections to achieve their required signal-to-interference-plus-noise ratio, while rate allocation guarantees the required delay/jitter for real-time traffic and the minimum transmission rate requirement for non-real-time traffic. Efficient rate allocation is achieved by making use of the randomness and burstiness of the packet generation process. At the link layer, a packet scheduling scheme is developed based on information derived from power distribution and rate allocation to achieve quality of service (QoS) guarantee. Packet scheduling efficiently utilizes the system resources in every time slot and improves the packet throughput for non-real-time traffic. At the network layer, a connection admission control (CAC) scheme based on the lower layer resource allocation information is proposed. The CAC scheme makes use of user mobility information to reduce handoff connection dropping probability (HCDP). Theoretical analysis of the grade of service performance, in terms of new connection blocking probability, HCDP, and resource utilization, is given. Numerical results show that the proposed RRM scheme can achieve both effective QoS guarantee and efficient resource utilization.

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Index Terms:
Code division multiple access, radio resource management, grade of service, quality of service, packet scheduling, connection admission control.
Dongmei Zhao, Xuemin (Sherman) Shen, Jon W. Mark, "Radio Resource Management for Cellular CDMA Systems Supporting Heterogeneous Services," IEEE Transactions on Mobile Computing, vol. 2, no. 2, pp. 147-160, April-June 2003, doi:10.1109/TMC.2003.1217235
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