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Improving Performance of SCTP over Broadband High Latency Networks

by Ishtiaq Ahmed, Okabe Yasuo, Kanazawa Masanori
"... Stream Control Transmission Protocol (SCTP) is newly emerged protocol, which combined good qualities of TCP and UDP. It is a reliable message oriented protocol providing Multistreaming and Multihoming as well. The congestion control scheme of SCTP is more or less similar to that of TCP with the exce ..."
Abstract - Cited by 1 (0 self) - Add to MetaCart
with the exception of the Fast Recovery algorithm. The performance of SCTP over the Internet and satellite links is improved as compared with TCP. However, the congestion control scheme of SCTP over high latency broadband networks needs further refinement in case of multiple packet losses on a link. We propose a new

Cost-Aware WWW Proxy Caching Algorithms

by Pei Cao, Sandy Irani - IN PROCEEDINGS OF THE 1997 USENIX SYMPOSIUM ON INTERNET TECHNOLOGY AND SYSTEMS , 1997
"... Web caches can not only reduce network traffic and downloading latency, but can also affect the distribution of web traffic over the network through costaware caching. This paper introduces GreedyDualSize, which incorporates locality with cost and size concerns in a simple and non-parameterized fash ..."
Abstract - Cited by 540 (6 self) - Add to MetaCart
-parameterized fashion for high performance. Trace-driven simulations show that with the appropriate cost definition, GreedyDual-Size outperforms existing web cache replacement algorithms in many aspects, including hit ratios, latency reduction and network cost reduction. In addition, GreedyDual-Size can potentially

Improving Multimedia Performance over Lossy Networks via SCTP

by Armando L. Caro, Jr., Paul D. Amer, Phillip T. Conrad, Gerard J. Heinz - SCTP,” ATIRP 2001, College Park, MD , 2001
"... The Stream Control Transmission Protocol (SCTP) is a new Internet standards track transport layer protocol. SCTP was designed to transport PSTN signaling messages over IP networks, but SCTP is also capable of serving as a generalized transport protocol. As such, SCTP provides an alternative to the t ..."
Abstract - Cited by 6 (0 self) - Add to MetaCart
The Stream Control Transmission Protocol (SCTP) is a new Internet standards track transport layer protocol. SCTP was designed to transport PSTN signaling messages over IP networks, but SCTP is also capable of serving as a generalized transport protocol. As such, SCTP provides an alternative

Using SCTP to hide latency in MPI programs

by H. Kamal, B. Penoff, M. Tsai, E. Vong, A. Wagner - In Heterogeneous Computing Workshop: Proceedings of the 2006 IEEE International Parallel and Distributed Processing Symposium (IPDPS , 2006
"... A difficulty in using heterogeneous collections of ge-ographically distributed machines across wide area net-works for parallel computing is the huge variability in message latency that is orders of magnitude larger than parallel programs executing on dedicated systems. This variability is in part d ..."
Abstract - Cited by 2 (1 self) - Add to MetaCart
of latency on MPI programs in wide area networks. We take advantage of SCTP’s improved congestion control as well as its ability to have multiple independent message streams over a single connection to eliminate the head of line blocking that can occur in TCP-based middleware. The use of streams required a

Reducing file system latency using a predictive approach

by James Griffioen, Randy Appleton , 1994
"... Despite impressive advances in file system throughput resulting from technologies such as high-bandwidth networks and disk arrays, file system latency has not improved and in many cases has become worse. Consequently, file system I/O remains one of the major bottlenecks to operating system performan ..."
Abstract - Cited by 202 (4 self) - Add to MetaCart
Despite impressive advances in file system throughput resulting from technologies such as high-bandwidth networks and disk arrays, file system latency has not improved and in many cases has become worse. Consequently, file system I/O remains one of the major bottlenecks to operating system

WTCP: A reliable transport protocol for wireless wide-area networks. Wireless Networks

by Prasun Sinha, Thyagarajan Nandagopal, Raghupathy Sivakumar, Vaduvur Bharghavan , 2002
"... Abstract. Wireless wide-area networks (WWANs) are characterized by very low and variable bandwidths, very high and variable delays, significant non-congestion related losses, asymmetric uplink and downlink channels, and occasional blackouts. Additionally, the majority of the latency in a WWAN connec ..."
Abstract - Cited by 181 (14 self) - Add to MetaCart
is rate-based, uses only end-to-end mechanisms, performs rate control at the receiver, and uses inter-packet delays as the primary metric for rate control. We have implemented and evaluated WTCP over the CDPD network, and also simulated it in the ns-2 simulator. Our results indicate that WTCP can improve

A Measurement Study of Vehicular Internet Access Using

by Vladimir Bychkovsky, Bret Hull, Allen Miu, Hari Balakrishnan, Samuel Madden - In Situ Wi-Fi Networks. In 12th ACM MOBICOM Conf , 2006
"... The impressive penetration of 802.11-based wireless networks in many metropolitan areas around the world offers, for the first time, the opportunity of a “grassroots ” wireless Internet service provided by users who “open up ” their 802.11 (Wi-Fi) access points in a controlled manner to mobile clien ..."
Abstract - Cited by 197 (6 self) - Add to MetaCart
connection is capable of uploading about 216 KBytes of data. Our high-level conclusion is that grassroots Wi-Fi networks are viable for a variety of applications, particularly ones that can tolerate intermittent connectivity. We discuss how our measurement results can improve transport protocols

Taming the Torrent: A practical approach to reducing cross-ISP traffic in peer-to-peer systems

by David R. Choffnes, Fabián E. Bustamante - In Proc. SIGCOMM , 2008
"... Peer-to-peer (P2P) systems, which provide a variety of popular services, such as file sharing, video streaming and voice-over-IP, contribute a significant portion of today’s Internet traffic. By building overlay networks that are oblivious to the underlying Internet topology and routing, these syste ..."
Abstract - Cited by 193 (15 self) - Add to MetaCart
, over 33 % of the time, it selects peers along paths that are within a single autonomous system (AS). Further, we find that our system locates peers along paths that have two orders of magnitude lower latency and 30 % lower loss rates than those picked at random, and that these high-quality paths can

Performance Evaluation of Safety Applications over DSRC Vehicular Ad Hoc Networks

by Jijun Yin, Tamer Elbatt, Gavin Yeung, Bo Ryu, Stephen Habermas, Hariharan Krishnan, Timothy Talty - in Proceedings of VANET , 2004
"... In this paper we conduct a feasibility study of delay-critical safety applications over vehicular ad hoc networks based on the emerging dedicated short range communications (DSRC) standard. In particular, we quantify the bit error rate, throughput and latency associated with vehicle collision avoida ..."
Abstract - Cited by 102 (6 self) - Add to MetaCart
In this paper we conduct a feasibility study of delay-critical safety applications over vehicular ad hoc networks based on the emerging dedicated short range communications (DSRC) standard. In particular, we quantify the bit error rate, throughput and latency associated with vehicle collision

PSockets: The Case for Application-level Network Striping for Data Intensive Applications using High Speed Wide Area Networks

by Sivakumar Bailey Grossman, H. Sivakumar, S. Bailey, R. L. Grossman - In Proceedings of Supercomputing 2000
"... Transmission Control Protocol (TCP) is used by various applications to achieve reliable data transfer. TCP was originally designed for unreliable networks. With the emergence of high-speed wide area networks various improvements have been applied to TCP to reduce latency and achieve improved bandwid ..."
Abstract - Cited by 138 (11 self) - Add to MetaCart
Transmission Control Protocol (TCP) is used by various applications to achieve reliable data transfer. TCP was originally designed for unreliable networks. With the emergence of high-speed wide area networks various improvements have been applied to TCP to reduce latency and achieve improved
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