An efficient timer-based hard handoff algorithm for cellular networks

Abstract

We introduce a new hard handoff algorithm that employs local averaging, a drop timer, and hysteresis. The proposed algorithm achieves better performance than conventional hysteresis-based handoff algorithms that employ exponential averaging, particularly in microcellular environments. We develop an analytical model and an efficient numerical procedure to evaluate accurately the performance and evaluation technique greatly simplify the practical task of dimensioning the cellular network for optimum performance.