An optimized multi‐attribute vertical handoff approach for heterogeneous wireless networks

Abstract

SummaryWireless networking is becoming an increasingly important and popular way of providing global information access to users on mobility. Considering the accessibility of different advances, it is hard to choose the best system that guarantees client fulfilment. The best network selection in heterogeneous condition is a primary research issue. In Dynamic Network Selection Function (DNSF) method, which employs physical layer metrics as criteria for network selection, computation of functions‐based relative dynamic weight optimization is proposed. This method is implemented through simulation in a typical heterogeneous wireless environment of Universal Mobile Telecommunications Service (UMTS) and Wireless Local Area Network (WLAN). The number of unnecessary handover occasions with the Handoff failure rate of the client between accessible systems is utilized as the execution measurements, and constantly best‐associated system is chosen in view of the cost function. It is inferred that DNSF based approach yields ideal system determination in heterogeneous condition.