A robust fuzzy logic handoff algorithm

In this paper a new algorithm for controlling handoff in mobile wireless networks is described. The conventional handoff control algorithm uses averaged values of the received signal strength for handoff decisions. Mobile terminals can take other measurements, such as distances to the base stations, which are useful for handoff decisions. This algorithm uses a decision process based on fuzzy logic. The performance of this algorithm is analyzed using simulations. Cases with 2 and 4 base stations are considered. The simulations show that in both cases the new algorithm provides better performance than the conventional algorithm.

[1]  J. M. Holtzman,et al.  A model for analyzing handoff algorithms (cellular radio) , 1993 .

[2]  S. B. Wicker,et al.  Bit error rate estimation techniques for digital land mobile radios , 1991, [1991 Proceedings] 41st IEEE Vehicular Technology Conference.

[3]  H. Habal,et al.  A novel location-based service and architecture , 1995, Proceedings of 6th International Symposium on Personal, Indoor and Mobile Radio Communications.

[4]  M. Gudmundson.  Correlation Model for Shadow Fading in Mobile Radio Systems , 1991 .

[5]  J. Holtzman,et al.  The non-line of sight problem in mobile location estimation , 1996, Proceedings of ICUPC - 5th International Conference on Universal Personal Communications.