Congestion-aware Proactive Vertical Handoff Decision using Coalition Game
S. V. Saboji1, C. B. Akki2 

1S. V. Saboji, Department of Computer Science and Engineering, Basaveshwar Engineering College, Bagalkot, India.
2C.B.Akki, Wipro Technologies, Bangalore, India.
Manuscript received on November 27, 2011. | Revised Manuscript received on December 18, 2011. | Manuscript published on January 05, 2012. | PP: 91-97 | Volume-1 Issue-6, January 2012. | Retrieval Number: F0275111511/2012©BEIESP
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Abstract: In 4G wireless networks, when a mobile host (MH) with multiple wireless interfaces changes its location or needs a network service, the MH will require a switch between different wireless networks (vertical handoff). Proposed congestion-aware proactive vertical handoff scheme uses coalition game. Its main objective is to decide source and target networks for handoff at minimum congestion in 4G wireless networks. Our mechanism is based on the coalition game formulation. It aims at maximizing the utilization of the resources available and meeting QoS requirement of users as much as possible by initiating vertical handoff. This will reduce congestion level. The performance of proposed scheme is evaluated through numerical analysis.
Keywords: Congestion, vertical handoff, Heterogeneous networks, and fairness.