Modeling and Analysis of Handover Algorithms

Handover between various networks or cells of the same network is an important problem faced by mobile nodes. With so many handover algorithms available, how to evaluate and select them become critical. A mathematical model for wrong decision probability and handover probability is given in this paper such that they can be used as criteria to evaluate handover algorithms. Explicit expressions for these two parameters are vigorously studied via a general bandwidth based handover algorithm. A WDP predication based handover algorithm is also proposed to improve the handover performance.