A Model-Based Approach to Evaluation of the Efficacy of FEC Coding in Combating Network Packet Losses

We propose a model-based analytic approach for evaluating the overall efficacy of FEC coding combined with interleaving in combating packet losses in IP networks. In particular, by modeling the network path in terms of a single bottleneck node, described as a G/M/1/K queue, we develop a recursive pr...

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Vydáno v:IEEE/ACM transactions on networking Ročník 16; číslo 3; s. 628 - 641
Hlavní autoři: Xunqi Yu, Modestino, J.W., Kurceren, R., Yee Sin Chan
Médium: Journal Article
Jazyk:angličtina
Vydáno: New York IEEE 01.06.2008
The Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Témata:
Autocorrelation function
Buffer overflow
Channel coding
Coding
Cyclic redundancy check
Effectiveness
FEC coding
Forward error correction
Interleaved codes
interleaving
IP (Internet Protocol)
IP networks
Mathematical analysis
Mathematical models
Multimedia systems
Networks
packet-loss processes
Quality of service
residual packet-loss rates
Silicon compounds
single-multiplexer model
Statistics
Strategy
Studies
ISSN:1063-6692, 1558-2566
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Shrnutí:We propose a model-based analytic approach for evaluating the overall efficacy of FEC coding combined with interleaving in combating packet losses in IP networks. In particular, by modeling the network path in terms of a single bottleneck node, described as a G/M/1/K queue, we develop a recursive procedure for the exact evaluation of the packet-loss statistics for general arrival processes, based on the framework originally introduced by Cidon et al., 1993. To include the effects of interleaving, we incorporate a discrete-time Markov chain (DTMC) into our analytic framework. We study both single-session and multiple-session scenarios, and provide a simple algorithm for the more complicated multiple-session scenario. We show that the unified approach provides an integrated framework for exploring the tradeoffs between the key coding parameters; specifically, interleaving depths, channel coding rates and block lengths. The approach facilitates the selection of optimal coding strategies for different multimedia applications with various user quality-of-service (QoS) requirements and system constraints. We also provide an information-theoretic bound on the performance achievable with FEC coding in IP networks.
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ISSN:1063-6692
1558-2566
DOI:10.1109/TNET.2007.900416