A call admission control scheme for packet data in CDMA cellular communications

In wireless cellular communication systems, call admission control (CAC) is to ensure satisfactory services for mobile users and maximize the utilization of the limited radio spectrum. In this paper, we propose a new CAC scheme for a code division multiple access (CDMA) wireless cellular network supporting heterogeneous self-similar data traffic. In addition to ensuring transmission accuracy at the bit level, the CAC scheme guarantees service requirements at both the call level and the packet level. The grade of service (GoS) at the call level and the quality of service (QoS) at the packet level are evaluated using the handoff call dropping probability and the packet transmission delay, respectively. The effective bandwidth approach for data traffic is applied to guarantee QoS requirements. Handoff probability and cell overload probability are derived via the traffic aggregation method. The two probabilities are used to determine the handoff call dropping probability, and the GoS requirement can be guaranteed on a per call basis. Numerical analysis and computer simulation results demonstrate that the proposed CAC scheme can meet both QoS and GoS requirements and achieve efficient resource utilization.

[1]  Ljiljana Trajkovic,et al.  Impact of self-similarity on wireless data network performance , 2001, ICC 2001. IEEE International Conference on Communications. Conference Record (Cat. No.01CH37240).

[2]  Frank Kelly,et al.  Notes on effective bandwidths , 1994 .

[3]  Azer Bestavros,et al.  Self-similarity in World Wide Web traffic: evidence and possible causes , 1996, SIGMETRICS '96.

[4]  Mischa Schwartz,et al.  Predictive QoS-based admission control for multiclass traffic in cellular wireless networks , 2000, IEEE Journal on Selected Areas in Communications.

[5]  Victor C. M. Leung,et al.  Adaptive Resource Allocation for Prioritized Call Admission over an ATM-Based Wireless PCN , 1997, IEEE J. Sel. Areas Commun..

[6]  Sheldon M. Ross,et al.  Introduction to probability models , 1975 .

[7]  Gordon L. Stüber,et al.  On call admission control in DS/CDMA cellular networks , 2001, IEEE Trans. Veh. Technol..

[8]  Walter Willinger,et al.  On the self-similar nature of Ethernet traffic , 1993, SIGCOMM '93.

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

[10]  D. Everitt,et al.  Effective bandwidth-based admission control for multiservice CDMA cellular networks , 1999 .

[11]  A. Erramilli,et al.  Self-similar traffic generation: the random midpoint displacement algorithm and its properties , 1995, Proceedings IEEE International Conference on Communications ICC '95.

[12]  Sally Floyd,et al.  Wide-area traffic: the failure of Poisson modeling , 1994 .

[13]  Walter Willinger,et al.  Self-similarity through high-variability: statistical analysis of Ethernet LAN traffic at the source level , 1997, TNET.

[14]  Victor C. M. Leung,et al.  Probability distribution of channel holding time in cellular telephony systems , 1996, Proceedings of Vehicular Technology Conference - VTC.

[15]  Bo Li,et al.  A dynamic call admission policy with precision QoS guarantee using stochastic control for mobile wireless networks , 2002, TNET.

[16]  F. Barcelo,et al.  Statistical modelling of transmission holding time in PAMR systems , 1997, GLOBECOM 97. IEEE Global Telecommunications Conference. Conference Record.

[17]  Ilkka Norros,et al.  On the Use of Fractional Brownian Motion in the Theory of Connectionless Networks , 1995, IEEE J. Sel. Areas Commun..

[18]  Sheldon M. Ross,et al.  Introduction to Probability Models (4th ed.). , 1990 .

[19]  Desmond P. Taylor,et al.  On the SelfSimilar Nature of Ethernet Traffic (Extended Version) , 2007 .

[20]  Li-Fung Chang,et al.  Wireless dynamic channel assignment performance under packet data traffic , 1999, IEEE J. Sel. Areas Commun..

[21]  Yuguang Fang,et al.  Call admission control schemes and performance analysis in wireless mobile networks , 2002, IEEE Trans. Veh. Technol..

[22]  Wha Sook Jeon,et al.  Call admission control for mobile multimedia communications with traffic asymmetry between uplink and downlink , 2001, IEEE Trans. Veh. Technol..