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TCP Support For Sensor Networks
White Papers TCP would be useful for tasks, where reliable unicast is appropriate, but the high bit error rates in wireless sensor networks lead to energy inefficiencies reducing the sensor network lifetime. We introduce an approach to support energy-efficient...
[December 26, 2007, 23:00]
TCP Behavior Across Multihop Wireless Networks And The Wired Internet
White Papers However, recent experiments with ad hoc, multihop 802.11 networks have exposed serious instabilities when TCP connections span both wired and wireless domains. These file transfers use TCP for reliability and congestion control.
[December 6, 2007, 23:00]
TCP Unfairness In Ad Hoc Wireless Networks And A Neighborhood RED Solution
White Papers Significant TCP unfairness in ad hoc wireless networks has been reported during the past several years. This unfairness results from the nature of the shared wireless medium and location dependency. If a node is viewed and its interfering nodes to...
[December 4, 2007, 23:00]
TCP Congestion Control In Fast Long-Distance Networks
White Papers Although TCP has proved remarkably flexible thus far and managed to adapt to vastly different types of networks, this paper shows that some of the assumptions behind these algorithms are no longer valid in today's fast long-distance networks.
[October 29, 2007, 23:00]
TCP Implementations And False Time Out Detection In OBS Networks
White Papers This paper compares Reno, New-Reno and Selective Acknowledgements (SACK), the three most common TCP implementations today in (future) optical burst switched (OBS) networks. All three TCP implementations react to a Time Out (TO) loss in the same way...
[January 14, 2008, 23:00]
TCP And UDP Performance For Internet Over Optical Packet-Switched Networks
White Papers This paper studies packet aggregation and deflection routing as employed in OPS networks on the performance of upper layer Internet protocols represented by TCP and UDP. The results show that for both TCP and UDP, mixed-flow aggregation achieves...
[January 14, 2008, 23:00]
The Capacity Of Multi-Hop Wireless Networks With TCP Regulated Traffic
White Papers This paper studies the capacity of multi-hop wireless networks with TCP regulated traffic. Specifically, this paper examines the sensitivity of the capacity to the speed of the nodes and the number of TCP connections in an ad hoc network.
[March 2, 2005, 23:00]
Nonlinear Stability Analysis For A Class Of TCP/AQM Networks
White Papers Recent work has shown the benefit of using proportional feedback in TCP/AQM networks. The earlier work relied on linearization of nonlinear fluid-flow models of TCP. By proportional feedback the authors mean the marking probability is proportional...
[October 30, 2007, 23:00]
Stability Analysis Of Some Classes Of TCP/AQM Networks
White Papers The local stability analysis of some classes of nonlinear time-delay systems, encountered as fluid flow models for TCP/AQM networks, is addressed. Recently, in Misra et al.a fluid-flow model describing accurately the behavior of congested routers...
[December 26, 2007, 23:00]
Packet Loss In TCP Hybrid Wireless Networks
White Papers Hybrid networks where packets travel through both a geostationary satellite and a terrestrial local wireless link are a particularly challenging environment with respect to TCP performance. The reason is that such networks exhibit both a high...
[December 26, 2007, 23:00]
Synchronization Of TCP Flows In Networks With Small DropTail Buffers
White Papers This paper is interested in the oscillatory regime of such networks and considers a topology where two TCP-controlled flows (each regulated by separate (edge) routers) merge to compete for bandwidth at a common (core) router.
[October 30, 2007, 23:00]
Modified Tahoe TCP For Wireless Networks Using OPNET Simulator
White Papers This paper describes a modification to the Transmission Control Protocol's (TCP) Tahoe flavour for use in Wireless networks. It shows that by slightly modifying the algorithm of the Tahoe TCP, it can be made to respond better to wireless links...
[January 14, 2008, 23:00]
RED For Improving TCP Over Wireless Networks
White Papers TCP was designed and tuned to work well on networks where losses are mainly congestion losses. The performance of TCP decreases dramatically when a TCP connection traverses a wireless link on which packets may be lost due to wireless transmission...
[January 14, 2008, 23:00]
Experimental Evaluations Of Gentle HighSpeed TCP For Long-Fat Networks
White Papers It is well-known that TCP Reno cannot provide satisfactory performance in high-speed long-delay networks. As a means addressing this problem, gentle HighSpeed TCP (gHSTCP) has been proposed in. In the present paper, a refined gHSTCP algorithm is...
[December 5, 2007, 23:00]
Enhanced Westwood+ TCP For Wireless/Heterogeneous Networks
White Papers This paper proposes an enhanced Westwood+ scheme for wireless/heterogeneous networks with a high random bit error rate (BER), in which the sender is introduced with the following three characteristics: to consider the impact of corruption strength...
[December 20, 2007, 23:00]
Gateway Adaptive Pacing For TCP Across Multihop Wireless Networks And The Internet
White Papers This paper introduces an effective congestion control scheme for TCP over hybrid wireless/wired networks comprising a multihop wireless IEEE 802.11 network and the wired Internet. We propose an adaptive pacing scheme at the Internet gateway for...
[December 20, 2007, 23:00]
The Impact Of Delayed Acknowledgement On E-TCP Performance In Wireless Networks
White Papers One of the topics many researches focus on is the performance of TCP over wireless environment. TCP is an Internet transport protocol, which uses a cumulative acknowledgement strategy to adjust its transmission rate.
[December 5, 2007, 23:00]
A Simple Model For The Traffic Profile Of TCP Streams In Heterogeneous Networks
White Papers The work discussed in this paper focuses on the study of the TCP traffic generation process in heterogeneous networks employing simple on/off traffic models. For a given TCP flow, the derivation of the model parameters considers the flow's mean...
[January 14, 2008, 23:00]
Improving TCP Performance Over Mobile Networks
White Papers This paper presents how regular TCP is well tuned to react to packet loss in wired networks. Transmission Control Protocol (TCP) is the most commonly used transport protocol on the Internet. The paper discusses why regular TCP is not suitable for...
[January 14, 2008, 23:00]
Avoiding Spurious TCP Timeouts In Wireless Networks By Delay Injection
White Papers The Transmission Control Protocol (TCP) has been designed to provide reliable transport of packets by adjusting the transmission rate to the network congestion level. While TCP can adapt to small fluctuations in the delay between the sender and the...
[January 14, 2008, 23:00]
