VERTICAL HANDOVER APPROACHES BASED ON IEEE 802.21 MIH

STANDARDS FOR HETEROGENEOUS NETWORKS

Submitted byHARIKRISHNAN. M

Registration No.: EC 1106

Under the guidance ofDr. G.SIVARADJE

ABSTRACT

Global connectivity, for anyone, anywhere, at anytime, to provide high –speed, high

quality, and reliable communication for mobile devices, is now becoming a reality. The credit

mainly goes to the recent technology advances in wireless communications comprised of a wide

range of technologies, services, and applications to fulfill the particular needs of end-users in

different deployment scenarios (Wi-Fi, LTE, WiMAX, and 3G/4G cellular systems).In such a

heterogeneous environment, one of the key ingredients to provide efficient ubiquitous computing

with guaranteed quality and continuity of service is the design of intelligent handoff algorithms.

In mobile communication, seamless vertical handover is one of the most challenging

issues which may cause communication interruption, delays and packet losses that affect the real

time communication performance. To resolve the problem of prevailing schemes, a marginal fast

vertical handover Evolved core IP using IEEE 802.21 Media Independent Handover (MIH)

standard is proposed.

The design goal of this project is to provide an efficient vertical handover decision

algorithm based on IEEE 802.21 standard for best quality of service to wide range of

applications. The proposed handover scenario is used to evaluate the vertical handover

performance involving a multimode terminal with WLAN/WiMAX interfaces and IEEE 802.21

entities. This capability proves an efficient solution for mobility, multihoming and routing for

integrating heterogeneous networks. In addition, the proposed scheme can reduce considerably

traffic overhead between WLAN/WiMAX networks, handover latency and base station scanning

interval time in OPNET platform and also various performance characteristics like delay, jitter

are analyzed in Qualnet platform.

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