Performance analysis of a token based MAC protocol with asymmetric polling strategy ('TOPO') for indoor radio local area networks under channel outage conditions

A MAC (media access control)-protocol for the indoor radio environment has to be able to overcome individual link failure due to channel outage with a minimized wastage of bandwidth. 'TOPO', a token based MAC protocol with asymmetric polling strategy, is suggested for a network in which the allocation of common resources, such as bandwidth, is administered by a central station. The protocol supports different traffic types and services as well as the adaptation to varying load and changing channel characteristics. The performance parameters, mean response time and bandwidth utilization, are derived from simulations for the case of asynchronous file transfer. The simulation model incorporates channel outage of variable length and probability. The optimum packet size is determined for different nonfade durations.<<ETX>>

[1]  M. Shafi,et al.  Outage calculation methods for microwave digital radio , 1987, IEEE Communications Magazine.

[2]  F. Reichert,et al.  Taking advantage of the disadvantage: interference detection for improved decentral radio channel access , 1991, [1991 Proceedings] 41st IEEE Vehicular Technology Conference.

[3]  Jean-Paul M. G. Linnartz,et al.  Narrowband land-mobile radio networks , 1993 .

[4]  Ron Frederick,et al.  Experiences with X in a Wireless Environment , 1993, Symposium on Mobile and Location-Independent Computing.

[5]  Abdol Hamid Aghvami,et al.  Channel outage performance of QPSK and pi /4-DQPSK in a multipath fading environment , 1992, [1992 Proceedings] The Third IEEE International Symposium on Personal, Indoor and Mobile Radio Communications.

[6]  Zhensheng Zhang,et al.  Performance of a modified polling strategy for broadband wireless lans in a harsh fading environment , 1993, Telecommun. Syst..

[7]  Andy Hopper,et al.  Performance of a multiple access protocol for an ATM based pico-cellular radio LAN , 1992, [1992 Proceedings] The Third IEEE International Symposium on Personal, Indoor and Mobile Radio Communications.

[8]  P. Karn,et al.  MACA-a New Channel Access Method for Packet Radio , 1990 .

[9]  Abdol Hamid Aghvami,et al.  Indoor radio environment considerations in selecting a media access control protocol for wideband radio data communications , 1993, Proceedings of ICC '93 - IEEE International Conference on Communications.

[10]  Kee Chaing Chua.  A variant of the CSMA protocol suitable for a mobile radio LAN , 1992, [Conference Record] GLOBECOM '92 - Communications for Global Users: IEEE.