Performance Optimization of Transmission Control Protocol in Heterogeneous Wireless Network During Mobility

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Executive Summary

Transmission Control Protocol (TCP) has shown serious performance limitations on wireless media. The main causes of these limitations have their root in mobility and link characteristics of wireless media. Heterogeneous environment of multiple radio-access technologies generally increases handover frequency, causing adverse impact on TCP flow and congestion control operations. This paper has provisioned handover state management mechanism by adding new states in TCP control operations. Performance optimization has been achieved by adding adaptive flow control, based on mobility events and by reconfiguration of TCP control parameters according to their criticality and impact on performance parameters.

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