An adaptive fuzzy predictor based handoff algorithm for heterogeneous network

In the future, the mobile data networks must consist of several tiers that would overlap with each other. The goal of this paper is to propose a new handoff algorithm for heterogeneous network. The heterogeneous network consists of cellular phone network (i.e., GPRS and UMTS) and IEEE 802.11 wireless local area network (WLAN). The proposed algorithm is an adaptive fuzzy predictor based handoff algorithm that can adapt with the dynamic conditions in the heterogeneous network. First, we use fuzzy predictor to predict the received signal strength (RSS) in cellular phone network and WLAN. Second, we propose a fuzzy decision algorithm to determine the possibility of handoff according to fuzzy decision algorithm, Our approach shows an efficient solution on the issue of the handoff problem in heterogeneous networks, Therefore, the effort needs to be devoted to finding new handoff strategies, and the impact on the novel fuzzy reasoning handoff strategy is necessary.