Results 221 to 230 of about 36,740 (267)

A Versatile Model for Packet Loss Visibility and its Application to Packet Prioritization [PDF]

IEEE Transactions on Image Processing, 2010
In this paper, we propose a generalized linear model for video packet loss visibility that is applicable to different group-of-picture structures. We develop the model using three subjective experiment data sets that span various encoding standards (H.264 and MPEG-2), group-of-picture structures, and decoder error concealment choices.
David Poole, Pamela C Cosman, Amy R Reibman   +2 more
exaly   +6 more sources

Empirical study of inter-arrival packet times and packet losses

Proceedings 22nd International Conference on Distributed Computing Systems Workshops, 2003
A packet switched network such as the Internet provides only the best-effort service for users. Recent studies of the characteristics of packet arrival on a packet switched network have shown a self-similar property with long-range dependence, and also show a heavy-tailed distribution.
Takayuki Kushida, Yoshitaka Shibata
openaire   +1 more source

Packet scheduling with delay and loss differentiation

Computer Communications, 2002
To support quality of service over the Internet, the Differentiated Services model has been proposed recently by the IETF. In the Differentiated Services model, flows with similar qualities of service (QoS) requirements are aggregated into classes in order to counter the scalability problem faced by the Integrated Services model.
Aaron Striegel, G. Manimaran
openaire   +1 more source

A survey on VoIP packet loss techniques

International Journal of Communication Networks and Distributed Systems, 2015
Voice over internet protocol (VoIP) is a group of hardware and software that facilitates people to utilise the internet as the transmission medium for telephone calls by transmitting voice data in packets using IP instead of using conventional circuit transmissions of the public switched telephone network (PSTN).
E. S. Thirunavukkarasu, E. Karthikeyan
openaire   +1 more source

On packet loss modeling: An empirical assessment

2017 8th International Conference on the Network of the Future (NOF), 2017
Accurately modeling the packet loss behavior of network components is a longstanding problem due to the impact of loss on quality of service (QoS) management and optimization strategies for real-time multimedia applications. Although a few models have been proposed in the literature with the purpose of estimating the statistical behavior of packet loss
Alfonso Iacovazzi, Daniel Frassinelli, Yuval Elovici   +2 more
openaire   +1 more source

WaveNetEQ — Packet Loss Concealment with WaveRNN

2020 54th Asilomar Conference on Signals, Systems, and Computers, 2020
We present WaveNetEQ, a novel packet loss concealment method based on a WaveRNN architecture. The model is conditioned on a log-mel spectrogram of the past signal to extract slow moving features, like voice characteristics and prosody and achieves significantly better quality than pattern based methods for medium and long term packet loss.
Florian Stimberg, Alex Narest, Alessio Bazzica, Lennart Kolmodin, Pablo Barrera González, Olga Sharonova, Henrik Lundin, Thomas C. Walters   +7 more
openaire   +1 more source

Bayesian packet loss detection for TCP

Proceedings IEEE 24th Annual Joint Conference of the IEEE Computer and Communications Societies., 2005
One of TCP's critical tasks is to determine which packets are lost in the network, as a basis for control actions (flow control and packet retransmission). Modern TCP implementations use two mechanisms: timeout, and fast retransmit. Detection via timeout is necessarily a time-consuming operation; fast retransmit, while much quicker, is only effective ...
Fonseca, Nahur, Crovella, Mark
openaire   +1 more source

Modeling Packet Losses in Communication Networks

2019 IEEE International Symposium on Information Theory (ISIT), 2019
An approach to constructing discrete models of packet losses suitable for a wide variety of communication network applications is studied. It is based on estimating parameters of probabilistic automata described via so-called pseudo-Markov chains. The new technique is applied both to approximating a discrete time analog process at the output of known ...
Irina E. Bocharova, Boris D. Kudryashov, Maben Rabi, Nikita Lyamin, Wouter Dankers, Erik Frick, Alexey V. Vinel   +6 more
openaire   +1 more source

Packet reassembly during cell loss

IEEE Network, 1993
Asynchronous transfer mode (ATM) is a packet switched data transport system based on short, fixed length cells. Each cell carries a virtual channel indicator (VCI) and virtual path indicator (VPI) in its header. Essential to the services offered by the ATM networks is the ATM adaptation layer (AAL), an ITU-TSS defined layer that adapts the cell-based ...
Grenville Armitage, Keith M. Adams
openaire   +1 more source

On-line Packet Loss Rate Estimation

2005 IEEE 16th International Symposium on Personal, Indoor and Mobile Radio Communications, 2006
A key requirement for ease of migration from legacy to ambient networks is the elimination of dependencies between functionalities. Currently, in the case of designs for QoS and mobility in IP networks, it is apparent that there is a strong coupling between the two functions.
Dan He, Nadeem Akhtar, Rahim Tafazolli, Anne-Louise Burness, Philip Eardley   +4 more
openaire   +1 more source