Performance evaluation of Forward Error Correction in ATM networks
SIGCOMM '92 Conference proceedings on Communications architectures & protocols
A histogram-based model for video traffic behavior in an ATM multiplexer
IEEE/ACM Transactions on Networking (TON)
The Markov-modulated Poisson process (MMPP) cookbook
Performance Evaluation
Conference proceedings on Applications, technologies, architectures, and protocols for computer communications
On the Utility of FEC Mechanisms for Audio Applications
COST 263 Proceedings of the Second International Workshop on Quality of Future Internet Services
Utility Analysis of Simple FEC Schemes for VoIP
NETWORKING '02 Proceedings of the Second International IFIP-TC6 Networking Conference on Networking Technologies, Services, and Protocols; Performance of Computer and Communication Networks; and Mobile and Wireless Communications
Theory, Volume 1, Queueing Systems
Theory, Volume 1, Queueing Systems
The ballot theorem strikes again: packet loss process distribution
IEEE Transactions on Information Theory
Loss probabilities for messages with redundant packets feeding a finite buffer
IEEE Journal on Selected Areas in Communications
On the effects of the packet size distribution on FEC performance
Computer Networks: The International Journal of Computer and Telecommunications Networking - Selected papers from the 3rd international workshop on QoS in multiservice IP networks (QoS-IP 2005)
On the effects of the packet size distribution on FEC performance
Computer Networks: The International Journal of Computer and Telecommunications Networking - Selected papers from the 3rd international workshop on QoS in multiservice IP networks (QoS-IP 2005)
Are multiple descriptions better than one?
NETWORKING'05 Proceedings of the 4th IFIP-TC6 international conference on Networking Technologies, Services, and Protocols; Performance of Computer and Communication Networks; Mobile and Wireless Communication Systems
| Hi-index | 0.00 |
For multimedia traffic like VBR video, knowledge of the average loss probability is not sufficient to determine the impact of loss on the perceived visual quality and on the possible ways of improving it, for example by forward error correction (FEC) and error concealment. In this paper we investigate how the packet size distribution affects the packet loss process, the distribution of the number of packets lost in a block of packets and the related FEC performance. We present an exact mathematical model for the loss process of an MMPP+M/Er /1/K queue and compare the results of the model to simulations performed with various other packet size distributions (PSDs), among others, the measured PSD from an Internet backbone. We conclude that the packet size distribution affects the packet loss process and thus the efficiency of FEC. This conclusion is mainly valid in access networks where a single multimedia stream might affect the multiplexing behavior. The results show that analytical models of the PSD matching the first three moments (mean,variance and skewness) of the empirical PSD can be used to evaluate the performance of FEC in real networks. We also conclude that the exponential PSD, though it is not a worst case scenario, is a good approximation for the PSD of today's Internet to evaluate FEC performance.