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TCP Over Load-Reactive Links
White Papers Before such adaptive links can be considered for deployment, it is essential to understand the behavior of widely deployed end-to-end protocols, in particular TCP. The paper studies the behavior of TCP flows over a particular type of LRL that uses...
[January 1, 1970, 0:59]
TCP With Header Checksum Option For Wireless Links: An Analytical Approach Towards Performance Evaluation
White Papers TCP performs poorly in wireless mobile networks due to large bit error rates. Basically, the TCP sender responds to these losses as if they were due to congestion in the network, and reduces the congestion window unnecessarily.
[January 1, 1970, 0:59]
Making Retransmission Delays In Wireless Links Friendlier To TCP
White Papers This causes undesired TCP control actions which reduce throughput. Heterogeneous communication networks with their variety of application demands, uncertain time-varying traffic load, and mixture of wired and wireless links pose several challenging...
[January 1, 1970, 0:59]
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...
[January 1, 1970, 0:59]
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 1, 1970, 0:59]
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.
[January 1, 1970, 0:59]
Effectiveness Of TCP SACK, TCP HACK And TCP Trunk Over Satellite Links
White Papers This paper reports the study on the performance enhancements of two extensions to the standard TCP implementation - Selective Acknowledgement (SACK) and Header Checksum (HACK) - over satellite links that are characterized by high latency and high...
[January 1, 1970, 0:59]
Improving TCP Throughput Over Lossy Links Using Protocol-Level Speculations
White Papers The degradation of TCP throughput in networks with lossy links is mainly due to the coexistence of two types of losses, congestion losses and link corruption losses. The objective of this paper is to propose a protocol-level speculation based TCP...
[January 1, 1970, 0:59]
Performance Analysis And Optimization Of TCP Over Adaptive Wireless Links
White Papers This paper proposes an analytical framework for performance evaluation of TCP (Transport Control Protocol) over adaptive wireless links. Specifically, it includes adaptation of power, modulation format and error recovery strategy, and incorporate...
[January 1, 1970, 0:59]
A Comparison Of Mechanisms For Improving TCP Performance Over Wireless Links
White Papers Reliable transport protocols such as TCP are tuned to perform well in traditional networks where packet losses occur mostly because of congestion. TCP responds to all losses by invoking congestion control and avoidance algorithms, resulting in...
[January 1, 1970, 0:59]
The Impact Of Efficient Flow Control And OS Features On TCP Performance Over Satellite Links
White Papers These solutions are based either on the modification of the TCP algorithm, mainly the flow control and the recovery, or on the architecture, mainly on splitting the connection (eg, PEP - Performance Enhancing Proxies), which may even include the...
[January 1, 1970, 0:59]
Different Mechanism For Improving TCP Performance Over Wireless Links
White Papers TCP has been tuned for traditional networks comprising wired links and stationary hosts. Most of the data transfer applications like FTP, web transactions use TCP/IP, the internet end-to-end transfer protocol.
[January 1, 1970, 0:59]
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 1, 1970, 0:59]
Improving TCP/IP Over Geostationary Satellite Links
White Papers The focus in this paper is on the undesirable phenomenon of early buffer overflow during Slow Start (SS) when TCP operates in large Bandwidth-Delay Product networks such as those including Geostationary satellite links.
[January 1, 1970, 0:59]
Improving TCP Performance Over Long Delay Satellite Links
White Papers There are problems, however, when TCP is used on long delay satellite links. TCP is robust and flexible when operated on wired terrestrial networks. This paper first studies the effects that these long delays have on TCP, and then it presents a...
[January 1, 1970, 0:59]
CTCP: Improving TCP-Friendliness Over Low-Buffered Network Links
White Papers As a consequence, when operating over under-buffered links, CTCP may demonstrate poor fairness to regular TCP flows that may be comparable to HSTCP. Compound TCP (CTCP) is a sender-side improvement for TCP in high-speed and long distance networks.
[January 1, 1970, 0:59]
TCP/IP Performance Over 3G Wireless Links With Rate And Delay Variation
White Papers Wireless link losses result in poor TCP throughput since losses are perceived as congestion by TCP, resulting in source throttling. While these mechanisms have reduced the impact of losses on TCP throughput and improved the channel utilization...
[January 1, 1970, 0:59]
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...
[January 1, 1970, 0:59]
Analysis Of TCP Latency Over Wireless Links Supporting FEC/ARQ-SR For Error Recovery
White Papers The study discussed in this paper is the performance of TCP over a wireless link implementing hybrid FEC/ARQ-SR at the link layer. The study is done by simulating a large number of TCP transfers over a wireless link showing Bernoulli errors.
[January 1, 1970, 0:59]
Buffer Management Schemes For Enhanced TCP Performance Over Satellite Links
White Papers Queue management policies are designed to enhance the performance of TCP over satellite networks. Thus, they combat the inherent unfairness of TCP. The queue management schemes, Smallest Window First (SWF) and Smallest Sequence Number First (SSF...
[January 1, 1970, 0:59]
