Results 1 - 10 of 3,699

The BSD Packet Filter: A New Architecture for User-level Packet Capture

by Steven Mccanne, Van Jacobson , 1992
"... Many versions of Unix provide facilities for user-level packet capture, making possible the use of general purpose workstations for network monitoring. Because network monitors run as user-level processes, packets must be copied across the kernel/user-space protection boundary. This copying can be m ..."
Abstract - Cited by 568 (2 self) - Add to MetaCart
Many versions of Unix provide facilities for user-level packet capture, making possible the use of general purpose workstations for network monitoring. Because network monitors run as user-level processes, packets must be copied across the kernel/user-space protection boundary. This copying can

Reliable Multicast Transport Protocol (RMTP)

by Sanjoy Paul, Krishan K. Sabnani, John C. Lin, Supratik Bhattacharyya
"... This paper presents the design, implementation and performance of a reliable multicast transport protocol called RMTP. RMTP is based on a hierarchical structure in which receivers are grouped into local regions or domains and in each domain there is a special receiver called a Designated Receiver (D ..."
Abstract - Cited by 654 (10 self) - Add to MetaCart
(DR) which is responsible for sending acknowledgments periodically to the sender, for processing acknowledgements from receivers in its domain and for retransmitting lost packets to the corresponding receivers. Since lost packets are recovered by local retransmissions as opposed to retransmissions

A High-Throughput Path Metric for Multi-Hop Wireless Routing

by Douglas S. J. De Couto, Daniel Aguayo, John Bicket, Robert Morris , 2003
"... This paper presents the expected transmission count metric (ETX), which finds high-throughput paths on multi-hop wireless networks. ETX minimizes the expected total number of packet transmissions (including retransmissions) required to successfully deliver a packet to the ultimate destination. The E ..."
Abstract - Cited by 1108 (5 self) - Add to MetaCart
This paper presents the expected transmission count metric (ETX), which finds high-throughput paths on multi-hop wireless networks. ETX minimizes the expected total number of packet transmissions (including retransmissions) required to successfully deliver a packet to the ultimate destination

The Macroscopic Behavior of the TCP Congestion Avoidance Algorithm

by Matthew Mathis, Jeffrey Semke, Jamshid Mahdavi, Teunis Ott , 1997
"... In this paper, we analyze a performance model for the TCP Congestion Avoidance algorithm. The model predicts the bandwidth of a sustained TCP connection subjected to light to moderate packet losses, such as loss caused by network congestion. It assumes that TCP avoids retransmission timeouts and alw ..."
Abstract - Cited by 652 (18 self) - Add to MetaCart
In this paper, we analyze a performance model for the TCP Congestion Avoidance algorithm. The model predicts the bandwidth of a sustained TCP connection subjected to light to moderate packet losses, such as loss caused by network congestion. It assumes that TCP avoids retransmission timeouts

A Survey on Position-Based Routing in Mobile Ad-Hoc Networks

by Martin Mauve, Jörg Widmer, Hannes Hartenstein - IEEE Network , 2001
"... We present an overview of ad-hoc routing protocols that make forwarding decisions based on the geographical position of a packet's destination. Other than the destination 's position, each node needs to know only its own position and the position of its one-hop neighbors in order to forwar ..."
Abstract - Cited by 496 (16 self) - Add to MetaCart
sender can obtain the current position of the destination. Therefore, recently proposed location services are discussed in addition to position-based packet forwarding strategies. We provide a qualitative comparison of the approaches in both areas and investigate opportunities for future research.

Secure Group Communications Using Key Graphs

by Chung Kei Wong, Mohamed Gouda , Simon S. Lam - SIGCOMM '98 , 1998
"... Many emerging applications (e.g., teleconference, real-time information services, pay per view, distributed interactive simulation, and collaborative work) are based upon a group communications model, i.e., they require packet delivery from one or more authorized senders to a very large number of au ..."
Abstract - Cited by 556 (17 self) - Add to MetaCart
Many emerging applications (e.g., teleconference, real-time information services, pay per view, distributed interactive simulation, and collaborative work) are based upon a group communications model, i.e., they require packet delivery from one or more authorized senders to a very large number

Effective Erasure Codes for Reliable Computer Communication Protocols

by Luigi Rizzo , 1997
"... Reliable communication protocols require that all the intended recipients of a message receive the message intact. Automatic Repeat reQuest (ARQ) techniques are used in unicast protocols, but they do not scale well to multicast protocols with large groups of receivers, since segment losses tend to b ..."
Abstract - Cited by 470 (14 self) - Add to MetaCart
to become uncorrelated thus greatly reducing the effectiveness of retransmissions. In such cases, Forward Error Correction (FEC) techniques can be used, consisting in the transmission of redundant packets (based on error correcting codes) to allow the receivers to recover from independent packet losses

ExOR: Opportunistic Multi-Hop Routing for Wireless Networks

by Sanjit Biswas, Robert Morris - in SIGCOMM , 2005
"... This paper describes ExOR, an integrated routing and MAC protocol that increases the throughput of large unicast transfers in multi-hop wireless networks. ExOR chooses each hop of a packet’s route after the transmission for that hop, so that the choice can reflect which intermediate nodes actually r ..."
Abstract - Cited by 457 (0 self) - Add to MetaCart
This paper describes ExOR, an integrated routing and MAC protocol that increases the throughput of large unicast transfers in multi-hop wireless networks. ExOR chooses each hop of a packet’s route after the transmission for that hop, so that the choice can reflect which intermediate nodes actually

Improving TCP/IP performance over wireless networks

by Hari Balakrishnan, Srinivasan Seshan, Elan Amir, Randy H. Katz - IN PROCEEDINGS, 1ST ACM CONF. ON MOBILE COMPUTING AND NETWORKING , 1995
"... TCP is a reliable transport protocol tuned to perform well in traditional networks made up of links with low bit-error rates. Networks with higher bit-error rates, such as those with wireless links and mobile hosts, violate many of the assumptions made by TCP, causing degraded end-to-end performance ..."
Abstract - Cited by 433 (18 self) - Add to MetaCart
is to cache packets at the base station and perform local retransmissions across the wireless link. We have implemented the snoop protocol on a wireless testbed consisting of IBM ThinkPad laptops and i486 base

Improving Reliable Transport and Handoff Performance in Cellular Wireless Networks

by Hari Balakrishnan, Srinivasan Seshan, Randy H. Katz , 1995
"... TCP is a reliable transport protocol tuned to perform well in traditional networks where congestion is the primary cause of packet loss. However, networks with wireless links and mobile hosts incur significant losses due to biterrors and handoff. This environment violates many of the assumptions mad ..."
Abstract - Cited by 389 (22 self) - Add to MetaCart
at the base station and mobile host, and preserve the end-to-end semantics of TCP. One part of the modifications, called the snoop module, caches packets at the base station and performs local retransmissions across the wireless link to alleviate the problems caused by high bit-error rates. The second part
Results 1 - 10 of 3,699