Mobility

Congestion Control in Wireless Flow-Aware Networks

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Executive Summary

Applicability of the concept of Flow-Aware Networking (FAN) for QoS assurance in wireless networks is studied in the paper. The link utilization efficiency for six versions of the TCP protocol in the FAN environment is investigated and compared. A new congestion control mechanism for FAN, referred to as RAMAF (Remove and Accept Most Active Flows), has been proposed to fulfill the wireless link requirements. While in basic FAN, new flows cannot begin transmission in congestion, the new solution ensures short acceptance times of new streaming flows in a router regardless whether the outgoing link is congested or not. As compared to other congestion control mechanisms proposed for FAN, RAMAF does not need to tune any parameters, and is thus automatic.

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