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A capacity-optimal QoS provisioning scheme for multimedia traffic in CDMA networks

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2 Author(s)
Tao Shu ; Dept. of Electron. Eng., Tsinghua Univ., Beijing, China ; Zhisheng Niu

We study the transmission rate (R) and bit-energy-to-interference ratio (Eb/I0) needed to maintain the desired QoS requirement for a given traffic while maximizing the user capacity in multimedia CDMA networks. Closed form functions among transmission rate, bit error rate (or equivalently Eb/I0), QoS requirements, and traffic characteristics are derived. Based on the dependence between R and Eb/I0, we propose a capacity-optimal determination of (R, Eb/I0) for a given traffic and QoS requirement. By numerical example we show that a higher user capacity is achieved by our scheme compared to those which ignore the dependence between R and Eb/I0.

Published in:

Communications, 2002. ICC 2002. IEEE International Conference on  (Volume:5 )

Date of Conference:

2002