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pmid: 25574490
pmc: PMC4276700
We propose an adaptive handover prediction (AHP) scheme for seamless mobility based wireless networks. That is, the AHP scheme incorporates fuzzy logic with AP prediction process in order to lend cognitive capability to handover decision making. Selection metrics, including received signal strength, mobile node relative direction towards the access points in the vicinity, and access point load, are collected and considered inputs of the fuzzy decision making system in order to select the best preferable AP around WLANs. The obtained handover decision which is based on the calculated quality cost using fuzzy inference system is also based on adaptable coefficients instead of fixed coefficients. In other words, the mean and the standard deviation of the normalized network prediction metrics of fuzzy inference system, which are collected from available WLANs are obtained adaptively. Accordingly, they are applied as statistical information to adjust or adapt the coefficients of membership functions. In addition, we propose an adjustable weight vector concept for input metrics in order to cope with the continuous, unpredictable variation in their membership degrees. Furthermore, handover decisions are performed in each MN independently after knowing RSS, direction toward APs, and AP load. Finally, performance evaluation of the proposed scheme shows its superiority compared with representatives of the prediction approaches.
Handover, Technology, Artificial intelligence, Adaptive neuro fuzzy inference system, Wireless Medium Access Control Protocols, Adaptive handover prediction, Engineering, Wireless network, Computer network, T, Q, R, 006, INGENIERIA TELEMATICA, Network Selection, RSS, Wireless Mobility and Network Handoff Management, Physical Sciences, Wireless, Telecommunications, Medicine, Wireless Technology, Algorithms, Research Article, Computer Networks and Communications, Science, Wireless communication, Structural engineering, Node (physics), Real-time computing, TK Electrical engineering. Electronics Nuclear engineering, Computer Communication Networks, Fuzzy Logic, Cooperative Diversity in Wireless Networks, FOS: Electrical engineering, electronic engineering, information engineering, Computer Simulation, Electrical and Electronic Engineering, Data mining, Probability, Seamless mobility, Computer science, Heterogeneous Wireless Networks, Fuzzy logic, Operating system, Fuzzy control system, Computer Science, Handoff Decision Algorithms, Performance Analysis, rate adaptation
Handover, Technology, Artificial intelligence, Adaptive neuro fuzzy inference system, Wireless Medium Access Control Protocols, Adaptive handover prediction, Engineering, Wireless network, Computer network, T, Q, R, 006, INGENIERIA TELEMATICA, Network Selection, RSS, Wireless Mobility and Network Handoff Management, Physical Sciences, Wireless, Telecommunications, Medicine, Wireless Technology, Algorithms, Research Article, Computer Networks and Communications, Science, Wireless communication, Structural engineering, Node (physics), Real-time computing, TK Electrical engineering. Electronics Nuclear engineering, Computer Communication Networks, Fuzzy Logic, Cooperative Diversity in Wireless Networks, FOS: Electrical engineering, electronic engineering, information engineering, Computer Simulation, Electrical and Electronic Engineering, Data mining, Probability, Seamless mobility, Computer science, Heterogeneous Wireless Networks, Fuzzy logic, Operating system, Fuzzy control system, Computer Science, Handoff Decision Algorithms, Performance Analysis, rate adaptation
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