Power Multiplexing Based Call Admission Control Scheme for Bursty Multimedia Traffic in Imperfect-Power-Controlled Cellular CDMA Networks

نویسندگان

  • Tao Shu
  • Zhisheng Niu
چکیده

A CAC algorithms (PM-CAC) is proposed and analyzed for multimedia cellular CDMA networks with imperfect power control and statistical power multiplexing among bursty traffics. Based on ON-OFF traffic model and lognormal interference model, we derive the traffic’s comprehensive outage probability, which is served as the metric of admission control. Two power allocation scheme, LOPA [1] and QOPA[2], are considered to study the performance of this CAC algorithms. By numerical examples, we verify the great capacity gains achieved by statistical power multiplexing and show that PM-CAC+QOPA provides superior system resource utilization to PM-CAC+LOPA in terms of lower call blocking probability and higher system throughput.

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تاریخ انتشار 2002