Optimizing the Use of Random Access Channels in GSM-GPRS

The random access channels and traffic channels are utilized, respectively, for call establishment and information transmission in the uplink direction (from mobile to base station) of the Global System for Mobile communications (GSM) networks. A call is either rejected or blocked depending on its inability to succeed either in the random access channels or in the traffic channels. The optimum number of random access slots is directly proportional to the average call arrival rate, being independent of the average channel holding time and the number of traffic channels. The number of slots occupied by a given call can be changed dynamically in the newly developed General Packet Radio Service (GPRS) systems. A complete analysis is executed for the traffic channel utilization and call blocking probability with the exact number of random access slots that provide almost zero call rejection probability. The overall call success probability is derived considering call rejection and call blocking probabilities.

[1]  Christian Lüders,et al.  The performance of the GSM random access procedure , 1994, Proceedings of IEEE Vehicular Technology Conference (VTC).

[2]  David J. Goodman,et al.  General packet radio service in GSM , 1997, IEEE Commun. Mag..

[3]  Sanjiv Nanda.  Stability evaluation and design of the PRMA joint voice data system , 1994, IEEE Trans. Commun..

[4]  Sanjiv Nanda,et al.  Adaptation techniques in wireless packet data services , 2000, IEEE Commun. Mag..

[5]  Rajeev Koodli,et al.  GPRS and IS-136 integration for flexible network and services evolution , 1999, IEEE Wirel. Commun..

[6]  Cc Lee,et al.  Signal-to-interference calculations for modern TDMA cellular communication systems , 1995 .

[7]  Werner Mohr.  Development of Mobile Communications Systems Beyond Third Generation , 2001, Wirel. Pers. Commun..

[8]  Jens C. Arnbak,et al.  Capacity of Slotted ALOHA in Rayleigh-Fading Channels , 1987, IEEE J. Sel. Areas Commun..

[9]  S. Onoe,et al.  The 3GPP proposal for IMT-2000 , 1999, IEEE Commun. Mag..

[10]  Mark Pecen,et al.  Simultaneous voice and data operation for GPRS/EDGE: class A dual transfer mode , 2001, IEEE Wirel. Commun..

[11]  G. Brasche,et al.  Concepts, services, and protocols of the new GSM phase 2+ general packet radio service : Wireless networks , 1997 .

[12]  Jahangir H. Sarker,et al.  Performance analysis of GSM traffic channel capacity with(out) high speed circuit switched data , 2000, Vehicular Technology Conference Fall 2000. IEEE VTS Fall VTC2000. 52nd Vehicular Technology Conference (Cat. No.00CH37152).

[13]  Sang Wu Kim.  Frequency-Hopped Spread-Spectrum Random Access with Retransmission Cutoff and Code Rate Adjustment , 1992, IEEE J. Sel. Areas Commun..

[14]  John Dunlop.  Potential for compressed video transmission over the GSM HSCSD service , 1997 .

[15]  Jahangir H. Sarker,et al.  The prudence transmission method I (PTM I): a retransmission cut-off method for contention based multiple-access communication systems , 1997, 1997 IEEE 47th Vehicular Technology Conference. Technology in Motion.

[16]  Leonard Kleinrock,et al.  Output Processes in Contention Packet Broadcasting Systems , 1985, IEEE Trans. Commun..

[17]  Katsumi Sakakibara,et al.  The effect of limiting the number of retransmission trials on the stability of slotted ALOHA systems , 2000, IEEE Trans. Veh. Technol..

[18]  Jahangir H. Sarker,et al.  Efficiency of the GSM-GPRS Air Interface for Real-Time IP Traffic Flows With and Without Packet Dropping , 2002, Wirel. Pers. Commun..

[19]  Jahangir H. Sarker,et al.  An Optimum Retransmission Cut-Off Scheme for Slotted ALOHA , 2000, Wirel. Pers. Commun..