Uplink system performance of high-speed IS-95 CDMA with mixed voice and bursty data traffic

Recently, the CDMA Development Group (CDG) and TIA-TR45.5 have been considering proposals using multiple codes to provide high-speed data services in IS-95 CDMA systems. Though some aspects of the high-speed CDMA performance have been studied previously, the impact of bursty data traffic dynamics has not been fully investigated. This paper evaluates the high-speed CDMA system performance with mixed voice and bursty data traffic in the presence of shadow fading. The simulation results suggest that a burst/call admission policy based on both data subscriber location and data/voice traffic loads is required for good performance. In addition, the conventional analytical model based on mean values may be too optimistic and the analysis assuming that the data subscribers are always transmitting may be too pessimistic to evaluate the system performance.

[1]  M. Frullone,et al.  PRMA performance in cellular environments with self-adaptive channel allocation strategies , 1996 .

[2]  Riccardo Gusella,et al.  A measurement study of diskless workstation traffic on an Ethernet , 1990, IEEE Trans. Commun..

[3]  Sally Floyd,et al.  Wide area traffic: the failure of Poisson modeling , 1995, TNET.

[4]  Sanjiv Nanda,et al.  An access scheme for high speed packet data service on IS-95 based CDMA , 1997, Proceedings Second IEEE Symposium on Computer and Communications.

[5]  Mark Crovella,et al.  Characteristics of WWW Client-based Traces , 1995 .

[6]  Raj Jain,et al.  Packet Trains-Measurements and a New Model for Computer Network Traffic , 1986, IEEE J. Sel. Areas Commun..

[7]  I Chih-Lin,et al.  Load and interference based demand assignment (LIDA) for integrated services in CDMA wireless systems , 1996, Proceedings of GLOBECOM'96. 1996 IEEE Global Telecommunications Conference.

[8]  Walter Willinger,et al.  Self-similarity and heavy tails: structural modeling of network traffic , 1998 .

[9]  L. F. Chang,et al.  Signal and interference statistics of a CDMA system with feedback power control , 1991, IEEE Global Telecommunications Conference GLOBECOM '91: Countdown to the New Millennium. Conference Record.

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

[11]  P. Pruthi,et al.  Heavy-tailed on/off source behavior and self-similar traffic , 1995, Proceedings IEEE International Conference on Communications ICC '95.