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Packet loss

About: Packet loss is a research topic. Over the lifetime, 21235 publications have been published within this topic receiving 302453 citations.


Papers
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Journal ArticleDOI
TL;DR: The packet dropping margin as a measure of stability robustness of a system against packet loss is defined and its formula is derived and a design method is proposed for enhancing Stability robustness subject to the constraint of a set of prescribed nominal closed-loop poles.
Abstract: This paper is concerned with stability analysis of discrete-time networked control systems subject to packet loss under a multiple-packet transmission policy with the packet dropping probability of the communication channel bounded from above. Necessary and sufficient conditions for stability are obtained. In addition, the packet dropping margin as a measure of stability robustness of a system against packet loss is defined and its formula is derived. A design method is proposed for enhancing stability robustness subject to the constraint of a set of prescribed nominal closed-loop poles.

74 citations

01 Jan 1999
TL;DR: This paper proposes a third alternative: pacing some packets at a certain rate until the ACK clock can be restarted, and describes the motivation and implementation and simulation results which show that it achieves the elapsed-time performance comparable to NSSR and loss behavior of SSR.
Abstract: TCP congestion avoidance mechanisms are based on adjustments to the congestion-window size, triggered by the ACK clock. These mechanisms are not well matched to large but intermittent bursts of traffic, such as responses from a HTTP/1.1-based web server. Idle periods between bursts (web page replies) stop the ACK clock and hence disrupt even data flow. When restarting data flow after an idle period, current implementations either enforce slow start (SSR) or use the prior congestion window (NSSR). The former approach, while conservative, leads to low effective throughput in cases like P-HTTP. The latter case optimistically sends a large burst of back-to-back packets, risking router buffer overflow and subsequent packet loss. This paper proposes a third alternative: pacing some packets at a certain rate until the ACK clock can be restarted. We describe the motivation and implementation of this third alternative and present simulation results which show that it achieves the elapsed-time performance comparable to NSSR and loss behavior of SSR.

74 citations

Journal ArticleDOI
01 Jun 2018
TL;DR: This paper surveys and reviews some related studies in the literature that deals with VANet heterogeneous wireless networks communications in term of vertical handover, data dissemination and collection, gateway selection and other issues, and outlines open issues that help to identify the future research directions of VANET in the heterogeneous environment.
Abstract: Vehicular communications have developed rapidly contributing to the success of intelligent transportation systems. In VANET, continuous connectivity is a huge challenge caused by the extremely dynamic network topology and the highly variable number of mobile nodes. Moreover, message dissemination efficiency is a serious issue in traffic effectiveness and road safety. The heterogeneous vehicular network, which integrates cellular networks with DSRC, has been suggested and attracted significant attention recently. VANET-cellular integration offers many potential benefits, for instance, high data rates, low latency, and extended communication range. Due to the heterogeneous wireless access, a seamless handover decision is required to guarantee QoS of communications and to maintain continuous connectivity between the vehicles. On the other hand, VANET heterogeneous wireless networks integration will significantly help autonomous cars to be functional in reality. This paper surveys and reviews some related studies in the literature that deals with VANET heterogeneous wireless networks communications in term of vertical handover, data dissemination and collection, gateway selection and other issues. The comparison between different works is based on parameters like bandwidth, delay, throughput, and packet loss. Finally, we outline open issues that help to identify the future research directions of VANET in the heterogeneous environment.

74 citations

Proceedings ArticleDOI
10 Nov 2003
TL;DR: This paper investigates the effects of packet loss on speech quality in Voice over Internet Protocol (VoIP) applications by using ITU-T G.107, the E-model, whose parameters currently only cover limited VoIP scenarios.
Abstract: This paper investigates the effects of packet loss on speech quality in Voice over Internet Protocol (VoIP) applications by using ITU-T G.107, the E-model, whose parameters currently only cover limited VoIP scenarios. Several packet loss rates, packet sizes and error concealment techniques for codec G.729 are examined. Mean Opinion Score (MOS) is used as an index for speech quality and is measured by Perceptual Evaluation of Speech Quality (PESQ) algorithm. These effects on speech quality are assessed in the equipment impairment factor domain and then formulated into the E-model. The validation test shows good accuracy of the proposed formula, the prediction errors range between /spl mnplus/0.10 MOS for most cases with an absolute maximum of 0.14 MOS.

74 citations

Patent
03 Oct 1990
TL;DR: In this paper, a congestion control strategy for a packet switching network (10) comprises an admission policy which controls the admission of packets into the network and a stop-and-go queuing strategy (50) at the network nodes.
Abstract: A congestion control strategy for a packet switching network (10) comprises an admission policy which controls the admission of packets into the network (10) and a stop-and-go queuing strategy (50) at the network nodes (n'''). The congestion control strategy utilizes multiple frame sizes (Fig. 6A) so that certain types of connections can be provided with small queuing delays while other types of connections can be allocated bandwith using small incremmental bandwidth units.

74 citations


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Performance
Metrics
No. of papers in the topic in previous years
YearPapers
2023133
2022325
2021694
2020846
20191,033
2018993