Fuzzy logic based handoff decision algorithm in GSM-R network

This paper proposes two fuzzy logic based handoff decision algorithms, both of them were using the average handoff factor. And, the difference between two proposed algorithms was whether using the hysteresis margin of the handoff factor. Compared with two conventional algorithms, two proposed algorithms were simulated under one scenario in passenger special line in China. The results showed that two proposed algorithms could make handoff decision efficiently at high speed (270 km/h-350 km/h) of moving terminals, while decreasing the probability of unnecessary handoff in GSM-R.