Optimized qos vertical handover decision techniques in next generation wireless network

Abstract

newlineThe evolution of the next generation wireless network has led to the increasing demand for handheld devices to enjoy mobility through Always Best Connected services. In the next generation wireless network, seamless best possible access to a network which has a widely varying set of network characteristics requires rigorous mobility management The vertical handover facilitates users to roam across different networks with seamless network connection The vertical handover process that supports mobility can be initiated as mobile controlled handoff or as a network controlled handoff process Associating the user with a suitable wireless network using a vertical handover process through wide network integration is a challenging and difficult problem that has drawn the attention of many researchers Traditional mobile controlled handoff techniques typically are based on single parameter and are inefficient due to superfluous handovers. Multi Attribute Decision Making MADM technique is employed in the vertical handover process to select the most appropriate alternative network but yields merely feasible results in a heterogeneous network Fuzzy-based optimal method discussed in the literature is computationally intensive due to the conflicting rules generated by the inconsistent information drawn from different sources leading to complex decision management