A Generic Fuzzy Logic Based Handoff Algorithm

Abstract

This chapter proposes a new class of handoff algorithms that combines the attractive features of several existing algorithms and adapts the handoff parameters using fuzzy logic. Known sensitivities of handoff parameters are used to create a fuzzy logic rule base. The design procedure for a generic fuzzy logic based algorithm is outlined. Extensive simulation results for a conventional handoff algorithm (absolute and relative signal strength based algorithm) and a fuzzy logic based algorithm are presented. This chapter shows that an adaptive multicriteria fuzzy handoff algorithm performs better than a signal strength based conventional handoff algorithm. More importantly, the proposed class of algorithms allows a systematic tradeoff among different system characteristics in the dynamic cellular environment.