Decision Strategies during vertical handover in heterogeneous networks
Journal Title: International Journal of Advanced Research in Computer Engineering & Technology(IJARCET) - Year 2013, Vol 2, Issue 6
Abstract
The next generation (4G) wireless networks is envisioned as a union of different access technologies, using terminals with multiple access interfaces and non-real-time or real-time services. Providing the user with the best anywhere anytime connection and improving the system resource utilization. The integration of Wireless Local Area Network (WLAN) hotspots and third generation (3G) cellular network has recently received much attention. While the 3G-network will provide global coverage with low data-rate service, the WLAN will provide high data-rate service within the hotspots. Although increasing the underlie network utilization is expected to increase the user available bandwidth, it may infringe the Quality-of-service (QoS) requirements of the active real-time applications. Hence achieving seamless handoff between different wireless technologies, known as vertical handoff (VHO), is a major challenge for 4G-system implementation. The most important subject in such situation is the Always Best Connected (ABC) concept allowing the best connectivity to applications anywhere at anytime. To answer ABC requirement, various vertical handover decision strategies have been proposed recently, using advanced tools and proven concepts. In this paper, we give a summary of the most interesting and recent strategies in order to introduce our vertical handover decision approach.
Authors and Affiliations
Sandeep Chouhan , Mr. R. B. Gaikwad
Keywords
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