Distributed Switching and Control with Fast Resource Assignment/Handoff for Personal Communications Systems

An architecture for a combined personal, mobile, and (possibly) loop access microcellular communications system in which calls are digitized and packetized is presented. A network of microcells is utilized to communicate with the various subscribers via radio. A fast handoff/resource assignment process is introduced. It is subscriber-controlled and is jointly performed by the subscribers and base station employing the resource auction multiple access (RAMA) algorithm. In this deterministic algorithm, resource utilization is independent of traffic load. Using selected GSM parameters with RAMA, for the purpose of illustration, it is shown that, in microcells with delays of 1 mu s, 1080 resource assignments per second are feasible: and with delays as high as 45 mu s, 216 assignments per second are feasible. >

[1]  N. Amitay,et al.  Resource auction multiple access (rama) : efficient method for fast resource assignment in decentralised wireless PCS , 1992 .

[2]  S. Nanda,et al.  Resource auction multiple access (RAMA) for statistical multiplexing of speech in wireless PCS , 1993, Proceedings of ICC '93 - IEEE International Conference on Communications.

[3]  M. J. Gans,et al.  Fiber optic microcellular radio , 1991 .

[4]  R. Steele,et al.  High-user-density digital cellular mobile radio systems , 1985 .

[5]  J. H. Whitteker.  Measurements of path loss at 910 MHz for proposed microcell urban mobile systems , 1988 .

[6]  A. J. Rustako,et al.  Radio propagation at microwave frequencies for line-of-sight microcellular mobile and personal communications , 1991 .

[7]  N. Amitay,et al.  Propagation measurements at microwave frequencies for microcellular mobile and personal communications , 1989, IEEE 39th Vehicular Technology Conference.

[8]  David J. Goodman,et al.  Performance of PRMA: a packet voice protocol for cellular systems , 1991 .

[9]  N. Amitay,et al.  Radio propagation measurements at microwave frequencies for microcellular mobile and personal communications , 1989, IEEE International Conference on Communications, World Prosperity Through Communications,.

[10]  Bhaskar Ramamurthi,et al.  Perfect-Capture ALOHA for Local Radio Communications , 1987, IEEE J. Sel. Areas Commun..

[11]  S. Nanda,et al.  Resource auction multiple access (RAMA) for statistical multiplexing of speech in wireless PCS , 1994 .

[12]  A.A.M. Saleh,et al.  The near/far effect in local ALOHA radio communications , 1987, IEEE Transactions on Vehicular Technology.

[13]  Bhaskar Ramamurthi,et al.  Packet reservation multiple access for local wireless communications , 1989, IEEE Trans. Commun..

[14]  Robert J. C. Bultitude,et al.  Propagation characteristics on microcellular urban mobile radio channels at 910 MHz , 1989, IEEE J. Sel. Areas Commun..

[15]  R. Steele.  The cellular environment of lightweight handheld portables , 1989, IEEE Communications Magazine.

[16]  N. Amitay,et al.  Propagation results at 11 GHz for microcellular radio , 1989 .

[17]  S. Nanda,et al.  Speech multiplexing in wireless PCS employing resource auction multiple access (RAMA) , 1992 .

[18]  David J. Goodman,et al.  Cellular packet communications , 1990, IEEE Trans. Commun..

[19]  R. Steele,et al.  Propagation and Bit Error Ratio Measurements for a Microcellular System , 1987 .

[20]  D.C. Cox,et al.  Portable digital radio communications-an approach to tetherless access , 1989, IEEE Communications Magazine.