TCP Adaptation for Vertical Handoff Using Network Monitoring

Authors:
Faraz Idris Khan;Eui Nam Huh
Affiliations:
Internet Computing and Security Lab, Department of Computer Engineering, Kyung Hee University, 449-701 Yongin, South Korea;Internet Computing and Security Lab, Department of Computer Engineering, Kyung Hee University, 449-701 Yongin, South Korea
Venue:
ICCS '07 Proceedings of the 7th international conference on Computational Science, Part IV: ICCS 2007
Year:
2007

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Abstract

Next Generation Network envisions convergence of different wireless networks to provide ubiquitous communication environment to the mobile user. The ubiquity is achieved by enabling a mobile user to switch to a network with better QoS (Quality of Service), by a mechanism called vertical handoff. We propose a vertical handoff management architecture which handles TCP adaptation and ensure efficient utilization of mobile terminal resource i.e. memory. The adaptation is achieved by configuring TCP socket buffer according to the available network resource i.e. bandwidth. The simulation results show that TCP utilizes the bandwidth and memory efficiently by employing our TCP adaptation strategy.