A Fuzzy Preprocessing Module for Optimizing the Access Network Selection in Wireless Networks
A Fuzzy Preprocessing Module for Optimizing the Access Network Selection in Wireless Networks
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DOI：
10.1155/2013/232198
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发表时间：
2013-01-01
影响因子：
1.3
通讯作者：
Adachi, Fumiyuki
中科院分区：
文献类型：
--
作者：
Kaleem, Faisal;Mehbodniya, Abolfazl;Adachi, Fumiyuki
异类无线网络的特点是存在以重叠方式共存的不同无线接入技术。这些无线接入技术通常在操作参数方面有所不同。另一方面，异类无线网络中的移动站(MS)配备有多个接口，以从这些无线接入技术访问不同类型的服务。这些异类无线网络的最终目标是基于始终最佳连接(ABC)原则，为这些MS提供高效的泛在计算的全球连接。这就是异类环境中无线技术之间智能、高效的垂直切换(VHO)需求变得明显的地方。本文设计并实现了一种基于模糊多准则的垂直切换必要性估计(VHONE)方案，该方案在考虑当前服务的连续性和服务质量以及终端用户满意度的同时，确定VHO的合适时间。
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 different types of services from these wireless access technologies. The ultimate goal of these heterogeneous wireless networks is to provide global connectivity with efficient ubiquitous computing to these MSs based on the Always Best Connected (ABC) principle. This is where the need for intelligent and efficient Vertical Handoffs (VHOs) between wireless technologies in a heterogeneous environment becomes apparent. This paper presents the design and implementation of a fuzzy multicriteria based Vertical Handoff Necessity Estimation (VHONE) scheme that determines the proper time for VHO, while considering the continuity and quality of the currently utilized service, and the end-users' satisfaction.