Title :
Integrated voice/data call admission control for wireless DS-CDMA systems
Author :
Singh, Sumeetpal ; Krishnamurthy, Vikram ; Poor, H. Vincent
Author_Institution :
Dept. of Electr. & Electron. Eng., Melbourne Univ., Parkville, Vic., Australia
fDate :
6/1/2002 12:00:00 AM
Abstract :
This paper addresses the call admission control problem for multiservice wireless code division multiple access (CDMA) cellular systems when the physical layer channel and receiver structure at the base station are taken into account. The call admission problem is formulated as a semi-Markov decision process with constraints on the blocking probabilities and signal-to-interference ratio (SIR). By using previous results in large random matrices, the SIR constraints incorporate linear multiuser detectors and fading channels. We show that the optimal call admission policy can be computed via a linear programming-based algorithm
Keywords :
Markov processes; cellular radio; code division multiple access; fading channels; integrated voice/data communication; linear programming; multiuser channels; probability; radio receivers; radiofrequency interference; random processes; signal detection; spread spectrum communication; telecommunication congestion control; DS-SS; SIR constraints; base station; blocking probabilities; code division multiple access; direct sequence spread spectrum; fading channels; integrated voice/data call admission control; linear multiuser detectors; linear programming-based algorithm; multiservice wireless cellular systems; optimal call admission policy; physical layer channel; random matrices; receiver structure; semi-Markov decision process; signal-to-interference ratio; wireless DS-CDMA systems; Bandwidth; Base stations; Bit rate; Call admission control; Detectors; Fading; Multiaccess communication; Physical layer; Signal processing; Telecommunication computing;
Journal_Title :
Signal Processing, IEEE Transactions on
DOI :
10.1109/TSP.2002.1003071
