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Scalable TCP Over Satellite Links: Performance Issues And Cross-Layer Design
White Papers This paper analyzes some issues related to the performance of a recently proposed TCP enhancement, Scalable TCP (S-TCP), over satellite links. First S-TCP features and assesses its performance in satellite networks are discussed, by means of...
[December 26, 2007, 23:00]
Enhancing TCP Over Satellite Links Using Canit Algorithm
White Papers Among the factors that can adversely affect TCP performances over satellite links, the long round trip time (RTT) is given, the high bit error rate (BER) and the variable RTT. The performance of TCP (Transmission Control Protocol) is often degraded...
[January 14, 2008, 23:00]
A Comparison Of Mechanisms For Improving TCP Performance Over Wireless Links
White Papers However, networks with wireless and other lossy links also suffer from significant losses due to bit errors and handoffs. Reliable transport protocols such as TCP are tuned to perform well in traditional networks where packet losses occur mostly...
[October 30, 2007, 23:00]
Performance Evaluation Of Scalable TCP And HighSpeed TCP Over Geostationary Satellite Links
White Papers These two protocols, originally designed for high-speed backbone links, appear to be major candidates for replacing in the next-generation Internet the current congestion control mechanism implemented by standard TCP.
[December 26, 2007, 23:00]
Queue Management For TCP Traffic Over 3G Links
White Papers Despite its simplicity, this solution yields superior performance for 3G links in terms of high link utilization, low queuing delay, and high end-to-end throughput for TCP bulk data transfers. Such links are often the bottleneck for an end-to-end...
[January 14, 2008, 23:00]
The Impact Of Efficient Flow Control And OS Features On TCP Performance Over Satellite Links
White Papers The high latency peculiar of satellite links causes severe degradation of performance, especially if high bandwidth is available. These solutions are based either on the modification of the TCP algorithm, mainly the flow control and the recovery...
[December 4, 2007, 23:00]
TCP Internal Buffers Optimization For Fast Long-Distance Links
White Papers In recent years, issues regarding the behavior of TCP in high-speed and long-distance networks have been extensively addressed in the networking research community, both because TCP is the most widespread transport protocol in the current Internet...
[December 20, 2007, 23:00]
Testing TCP Westwood+ Over Transatlantic Links At 10 Gigabit/Second Rate
White Papers This paper reports a first investigation of the performance of Westwood+ TCP over large delay paths at 10 gigabit/second rates. The main feature of Westwood+ TCP is its adaptive setting of the control windows after a congestion episode obtained by...
[December 20, 2007, 23:00]
Performance Of TCP On Low-Bandwidth Wireless Links With Delay Spikes
White Papers This paper models the goodput of a single TCP source on a wireless link experiencing sudden increases in RTT, i.e.delay spikes. Such spikes trigger spurious timeouts that reduce the TCP goodput. Renewal reward theory is used to derive a...
[December 26, 2007, 23:00]
CLAMP: Maximizing The Performance Of TCP Over Low Bandwidth Variable Rate Access Links
White Papers This paper presents CLAMP, a distributed algorithm to enhance the performance of TCP connections that terminate in a wireless access network. CLAMP works at a receiver to control a TCP sender by setting the TCP receiver's advertised window limit.
[October 30, 2007, 23:00]
TCP Performance Over Satellite In Case Of Multiple Sessions Per Links Using Efficient Flow Control And Real OS
White Papers TCP is the layer 4 protocol over which all the Internet applications are based. The high latency severely limits performance, especially if high bandwidth is available. Due to the high Bandwidth Delay Product a long time to fill the pipe is needed.
[December 4, 2007, 23:00]
Applying Speculative Technique To Improve TCP Throughput Over Lossy Links
White Papers
[December 6, 2007, 23:00]
Experiences With Reducing TCP Performance Problems On ADSL
White Papers Previously, it has been shown through simulation, wireless and satellite links that TCP throughput may be reduced by asymmetric links due to ack compression and that ack filtering and prioritizing acks can increase TCP throughput.
[August 8, 2007, 0:00]
Improving TCP Performance With Periodic Disconnections Over Wireless Links
White Papers However, TCP still suffers large performance degradation over wireless links due to characteristics specific to wireless environment that affect the behavior of TCP's congestion control and avoidance mechanisms.
[August 23, 2007, 0:00]
Improving TCP Performance Over Mobile Networks
White Papers The paper discusses why regular TCP is not suitable for mobile hosts and their wireless links by providing simulation results that demonstrate the effect of the high bit error rates of the wireless link on TCP performance.
[January 14, 2008, 23:00]
Modified Tahoe TCP For Wireless Networks Using OPNET Simulator
White Papers It shows that by slightly modifying the algorithm of the Tahoe TCP, it can be made to respond better to wireless links, while maintaining its advantages on the wired networks at the same time. This is certainly a very desirable feature as the...
[January 14, 2008, 23:00]
Time-Driven Early Discard (TED) To Improve The Fairness Of TCP Congestion Control
White Papers TED is shown to improve fairness among TCP connections sharing congested links when the deadline is chosen proportional to their round trip time (RTT). TED is adaptive in limiting the throughput of only those connections that traverse congested links.
[December 26, 2007, 23:00]
End-to-End Bandwidth Estimation In TCP To Improve Wireless Link Utilization
White Papers It will focus on utilization of wireless links by comparing Westwood vs Reno throughput. Simulations and measurements show that Westwood utilizes wireless links much better than Reno. TCP Westwood (TCPW) is a sender-side only modification of TCP...
[December 6, 2007, 23:00]
Network Level Wireless TCP Performance
White Papers Mobile wireless links are becoming more popular as the demand for mobile computing and wireless communication rises. While mobile phones already have a strong presence in the market, consumers and businesses are increasingly seeking devices capable...
[August 7, 2007, 0:00]
TCP-Vegas Slow Start Performance In Large Bandwidth Delay Network
White Papers With the rapid expansion of the Internet, it has become possible for end hosts that are separated long apart to be connected through high bandwidth links. TCP-Vegas is known as a potential solution to these problems.
[December 20, 2007, 23:00]
