Despina Triantafyllidou

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—An emerging approach for improving the performance of TCP in ad hoc multihop networks is to limit the maximum congestion window (CWNDmax) that a TCP connection is allowed to reach, in order to eliminate the number of outstanding segments and increase the TCP stability. In the present work, we propose an adaptive scheme to bound the CWNDmax value in an IEEE(More)
We present a new approach for seamless congestion control over heterogeneous networks containing wired and wireless IEEE 802.11 links. The approach uses ECN (Explicit Congestion Notification) as a common signalling mechanism for conveying congestion information from both wired and wireless links. Two additional novel aspects of the approach are that ECN(More)
In this paper we propose an approach to increase TCP's fairness in multihop wireless networks, using ECN as a congestion signalling mechanism. The novel idea we introduce is that the marking probability at a wireless node is a function of the aggregate utilization in the node's neighborhood, which is determined by the sum of the receiving rates of all nodes(More)
In the present work we examine the impact of average path-delay routing (APDR) to TCP, in 802.11 ad hoc networks. The route discovery is based on the lowest average-delay path, and on optimised link state routing (OLSR). The simulation study on ad hoc scenarios reveals an improved roundtrip time (RTT) for TCP, but a reduced throughput. As shown, regular(More)
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