QOS-based call admission control for integrated voice and data in CDMA systems

We propose and analyze a quality-based admission control policy for the integration of voice and data in a CDMA system. The data users are assigned a higher transmission power level over voice users to achieve a lower bit error rate. The admission policy determines the acceptance of a call request based on its specified QoS and the network resources. The system ensures that an accepted call can enjoy its specified QoS without degrading the quality of existing calls. A Markov model is developed to analyze the blocking probability and outage probability. The Erlang capacity of the system can be evaluated.

[1]  Andrew J. Viterbi,et al.  On the capacity of a cellular CDMA system , 1991 .

[2]  Mahmoud Naghshineh,et al.  Control and quality-of-service provisioning in high-speed microcellular networks , 1994, IEEE Personal Communications.

[3]  Zhao Liu,et al.  SIR-based call admission control for DS-CDMA cellular systems , 1994, IEEE J. Sel. Areas Commun..

[4]  Evaggelos Geraniotis,et al.  Multi-media integration in CDMA networks , 1994, Proceedings of IEEE 3rd International Symposium on Spread Spectrum Techniques and Applications (ISSSTA'94).

[5]  E. Zehavi.  The PCS CDMA system overview , 1995, Eighteenth Convention of Electrical and Electronics Engineers in Israel.

[6]  Mischa Schwartz,et al.  Distributed call admission control in mobile/wireless networks , 1996, IEEE J. Sel. Areas Commun..

[7]  Wen-Bin Yang,et al.  Admission policies for integrated voice and data traffic in CDMA packet radio networks , 1994, IEEE J. Sel. Areas Commun..