A novel soft handoff algorithm for fair network resources distribution

Abstract

In this paper, we propose a novel and simple soft hand off algorithm that helps fair distribution of network resources among users. Due to centralized soft handoff mechanism, no further computational complexity is added to the mobile sets. Because we use fuzzy inference system (FIS) in adapting thresholds of our algorithm, it releases the traffic channels at high traffic load for increasing the carried traffic. This paper compares the performance of our algorithms with IS-95A soft handoff algorithm by using following performance indicators: outage probability, new call blocking probability, handoff call blocking probability, expected number of base station in active set, expected number of changes in active set, and network carried traffic. By comparison of all parameters among proposed algorithm and IS-95A, our algorithm tend to have a higher performance than IS-95A soft handoff, especially in new call requests blocking probability and network carried traffic.