Scps-Tp, Tcp, and Rate-Based Protocol Evaluation
Scps-Tp, Tcp, and Rate-Based Protocol Evaluation

Author: Diepchi T. Tran

Publisher: BiblioGov

Published: 2013-07

Total Pages: 70

ISBN-13: 9781289257286

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Tests were performed at Glenn Research Center to compare the performance of the Space Communications Protocol Standard Transport Protocol (SCPS TP, otherwise known as "TCP Tranquility") relative to other variants of TCP and to determine the implementation maturity level of these protocols, particularly for higher speeds. The testing was performed over reasonably high data rates of up to 100 Mbps with delays that are characteristic of near-planetary environments. The tests were run for a fixed packet size, but for variously errored environments. This report documents the testing performed to date.

Scps-Tp, Tcp, and Rate-Based Protocol Evaluation. Revised
Scps-Tp, Tcp, and Rate-Based Protocol Evaluation. Revised

Author: National Aeronautics and Space Administration (NASA)

Publisher: Createspace Independent Publishing Platform

Published: 2018-06-04

Total Pages: 66

ISBN-13: 9781720714705

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Tests were performed at Glenn Research Center to compare the performance of the Space Communications Protocol Standard Transport Protocol (SCPS TP, otherwise known as "TCP Tranquility") relative to other variants of TCP and to determine the implementation maturity level of these protocols, particularly for higher speeds. The testing was performed over reasonably high data rates of up to 100 Mbps with delays that are characteristic of near-planetary environments. The tests were run for a fixed packet size, but for variously errored environments. This report documents the testing performed to date.Tran, Diepchi T. and Lawas-Grodek, Frances J. and Dimond, Robert P. and Ivancic, William D.Glenn Research CenterPROTOCOL (COMPUTERS); SPACE COMMUNICATION; TELECOMMUNICATION; PLANETARY ENVIRONMENTS; BIT ERROR RATE; CHANNEL CAPACITY; DATA SYSTEMS; LOCAL AREA NETWORKS

Performance Analysis of TCP Enhancements in Satellite Data Networks
Performance Analysis of TCP Enhancements in Satellite Data Networks

Author: Ren Broyles

Publisher:

Published: 1999-03-01

Total Pages: 141

ISBN-13: 9781423546405

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This research examines two proposed enhancements to the well-known Transport Control Protocol (TCP) in the presence of noisy communication links. The Multiple Pipes protocol is an application-level adaptation of the standard TCP protocol, where several TCP links cooperate to transfer data. The Space Communication Protocol Standard - Transport Protocol (SCPS-TP) modifies TCP to optimize performance in a satellite environment. While SCPS-TP has inherent advantages that allow it to deliver data more rapidly than Multiple Pipes, the protocol, when optimized for operation in a high-error environment, is not compatible with legacy TCP systems, and requires changes to the TCP specification. This investigation determines the level of improvement offered by SCPS-TP's Corruption Mode, which will help determine if migration to the protocol is appropriate in different environments. As the percentage of corrupted packets approaches 5 %, Multiple Pipes can take over five times longer than SCPS-TP to deliver data. At high error rates, SCPS-TP's advantage is primarily caused by Multiple Pipes' use of congestion control algorithms. The lack of congestion control, however, limits the systems in which SCPS-TP can be effectively used.

Software Engineering and Knowledge Engineering: Theory and Practice
Software Engineering and Knowledge Engineering: Theory and Practice

Author: Yanwen Wu

Publisher: Springer Science & Business Media

Published: 2012-01-15

Total Pages: 1101

ISBN-13: 3642037186

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The volume includes a set of selected papers extended and revised from the I2009 Pacific-Asia Conference on Knowledge Engineering and Software Engineering (KESE 2009) was held on December 19~ 20, 2009, Shenzhen, China. Volume 1 is to provide a forum for researchers, educators, engineers, and government officials involved in the general areas of Computer and Software Engineering to disseminate their latest research results and exchange views on the future research directions of these fields. 140 high-quality papers are included in the volume. Each paper has been peer-reviewed by at least 2 program committee members and selected by the volume editor Prof. Yanwen Wu. On behalf of this volume, we would like to express our sincere appreciation to all of authors and referees for their efforts reviewing the papers. Hoping you can find lots of profound research ideas and results on the related fields of Computer and Software Engineering.

Resource Management in Satellite Networks
Resource Management in Satellite Networks

Author: Giovanni Giambene

Publisher: Springer Science & Business Media

Published: 2007-04-20

Total Pages: 347

ISBN-13: 0387539913

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This book provides significant knowledge on innovative radio resource management schemes for satellite communication systems that exploit lower layer adaptivity and the knowledge of layer 3 IP QoS support and transport layer behavior. The book integrates competencies considering all the parts of system design: propagation aspects, radio resource management, access protocols, network protocols, transport layer protocols, and more, to cover both broadband and mobile satellite systems.