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—In a heterogeneous wireless network, different wireless access technologies with different operating parameters coexists in an overlay fashion. These wireless networks are deployed in order to provide different type of services to Mobile Stations (MSs) equipped with multiple interfaces, based on the principle of Always Best Connected (ABC) network. In such(More)
Global roaming and high-quality wireless communication, is now becoming a reality. This is mainly due to recent technological advances in wireless communications which consist of a wide range of technologies and applications to fulfill the particular needs of end-users in different deployment scenarios (Bluetooth, Wi-Fi, WiMAX, and 3G/4G cellular systems).(More)
A heterogeneous wireless network is characterized by the presence of different wireless access technologies that coexist in an overlay fashion. These wireless access technologies usually differ in terms of their operating parameters. On the other hand, Mobile Stations (MSs) in a heterogeneous wireless network are equipped with multiple interfaces to access(More)
Keywords: WLAN WMAN WWAN Network access selection Vertical handoff Heterogeneous networks FVIKOR a b s t r a c t In a highly integrated ubiquitous wireless environment, the selection of a network that can fulfill end-users' service requests while keeping their overall satisfaction at a high level, is vital. The wrong selection can lead to undesirable(More)
Even though various wireless Network Access Technologies (NATs) with different specifications and applications have been developed in the recent years, no single wireless technology alone can satisfy the anytime , anywhere, and any service wireless access needs of mobile users. A real seamless wireless mobile environment is only realized by considering(More)
Given a bounded n-connected domain Ω in the plane bounded by n non-intersecting Jordan curves and given one point b j on each boundary curve, L. Bieberbach proved that there exists a proper holomorphic mapping f of Ω onto the unit disc that is an n-to-one branched covering with the properties: f extends continuously to the boundary and maps each boundary(More)
Global connectivity, at anyplace and anytime, to provide high-speed, high-quality, and reliable communication channels, is now becoming a reality. The credit mainly goes to the recent technological advances in wireless communications which consist of a wide range of technologies and applications to fulfill the particular needs of end-users in different(More)