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RSS angelesTCP Westwood: Analytic Model and Performance Evaluation
White Paper This paper presents a performance model of TCP Westwood (TCPW), a new TCP protocol with a sender-side modification of the window congestion control scheme. TCP Westwood controls the window using end-to-end connection bandwidth share... [05 Dec 2007]
TCP Startup Performance in Large Bandwidth Delay Networks
White Paper Next generation networks with large bandwidth and long delay pose a major challenge to TCP performance, especially during the startup period. This paper evaluates the performance of TCP Reno/Newreno, Vegas and Hoe's modification in large... [05 Dec 2007]
TCP With Faster Recovery
White Paper Among the problems affecting the current version of TCP are the slow recovery upon coarse timeout expiration on long, fat pipes, and the reaction to random segment losses. Both problems are known to reduce the throughput of a connection. [05 Dec 2007]
Performance Evaluation of TCP Based Applications Using Double Constellation Geo/Leo Architecture
White Paper The implementation of an IP based worldwide network needs the availability of a very efficient satellite segment in order to achieve real global coverage. To this aim the satellite component shall provide flexibility and high link... [05 Dec 2007]
TCP Westwood: Congestion Window Control Using Bandwidth Estimation
White Paper This paper studies the performance of TCP Westwood (TCPW), a new TCP protocol with a sender-side modification of the window congestion control scheme. TCP Westwood controls the window using end-to-end rate estimation in a way which is... [05 Dec 2007]
TCP Unfairness in Ad Hoc Wireless Networks and a Neighborhood RED Solution
White Paper 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... [05 Dec 2007]
TCP Westwood: Congestion Control With Faster Recovery
White Paper This paper proposes a new version of the TCP protocol, called TCP Westwood, which enhances the performance of TCP window congestion control by using as feedback the end-to-end measurement of the bandwidth available along a TCP connection. [05 Dec 2007]
Low-Rate TCP-Targeted Denial of Service Attack Defense
White Paper Low-rate TCP targeted denial of service attacks are a subset of DoS attacks that exploit the Retransmission TimeOut (RTO) mechanism of TCP. In doing so, such an attack can drastically reduce throughput while producing little traffic... [05 Dec 2007]
Timing Analysis of TCP Servers for Surviving Denial-of-Service Attacks
White Paper High errors and high delays create well-known problems with TCP. One established approach to solve this problem involves dividing TCP connections into segments, or splitting the connection. This paper takes this approach one step further... [05 Dec 2007]
TCP Performance Over Multipath Routing in Mobile Ad Hoc Networks
White Paper This paper investigates TCP performance over a multipath routing protocol. Multipath routing can improve the path availability in mobile environment. Thus, it has a great potential to improve TCP performance in ad hoc networks under... [05 Dec 2007]
Stories of the month - November 2007
News Group IT director Colin Cobain announced he is leaving at the end of November after leading the IT implementation behind Tesco's first US stores, which opened in Los Angeles this month. This month started with an iPhone... [29 Nov 2007]
Tesco IT chief steps down
News Group IT director Colin Cobain is leaving at the end of November after leading the IT implementation behind Tesco's first US stores, which opened in Los Angeles this month. Tesco's IT chief is stepping down from the... [14 Nov 2007]
Revealed: World's hottest wi-fi spots
News Los Angeles* excluding airport and hotel usage Worldwide wi-fi hotspot usage by business users shot up by 68 per cent in the first half of this year, compared to the second half of 2006, with airports topping the list of... [20 Sep 2007]
Peter Cochrane's Blog: Unfair fallout
Comment Written at a hotel on Wilshire Boulevard, Los Angeles, and dispatched to silicon.com via a free wi-fi service The MRI scanner happens to be one of the most powerful inventions available to medical science. [20 Sep 2007]
Cbeyond Inc. Improves Application Availability and Performance With Hosted Infrastructure
Cbeyond Inc.provides managed Internet Protocol (IP)-based communications services to small businesses in Atlanta, Chicago, Dallas, Denver, Houston, and Los Angeles. The challenge was to ensure the availability and... [05 Sep 2007]
