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Decoding Delay Minimization in Inter-Session Network Coding

Bourtsoulatze, E; Thomos, N; Frossard, P; (2014) Decoding Delay Minimization in Inter-Session Network Coding. IEEE Transactions on Communications , 62 (6) pp. 1944-1957. 10.1109/TCOMM.2014.2318701. Green open access

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Abstract

Intra-session network coding has been shown to offer significant gains in terms of achievable throughput and delay in settings where one source multicasts data to several clients. In this paper, we consider a more general scenario where multiple sources transmit data to sets of clients over a wireline overlay network. We propose a novel framework for efficient rate allocation in networks where intermediate network nodes have the opportunity to combine packets from different sources using randomized network coding. We formulate the problem as the minimization of the average decoding delay in the client population and solve it with a gradient-based stochastic algorithm. Our optimized inter-session network coding solution is evaluated in different network topologies and is compared with basic intra-session network coding solutions. Our results show the benefits of proper coding decisions and effective rate allocation for lowering the decoding delay when the network is used by concurrent multicast sessions.

Type: Article
Title: Decoding Delay Minimization in Inter-Session Network Coding
Open access status: An open access version is available from UCL Discovery
DOI: 10.1109/TCOMM.2014.2318701
Publisher version: https://doi.org/10.1109/TCOMM.2014.2318701
Language: English
Additional information: This version is the author accepted manuscript. For information on re-use, please refer to the publisher’s terms and conditions.
Keywords: Network coding, Encoding, Decoding, Delays, Vectors, Throughput, Resource management
UCL classification: UCL
UCL > Provost and Vice Provost Offices
UCL > Provost and Vice Provost Offices > UCL BEAMS
UCL > Provost and Vice Provost Offices > UCL BEAMS > Faculty of Engineering Science
UCL > Provost and Vice Provost Offices > UCL BEAMS > Faculty of Engineering Science > Dept of Electronic and Electrical Eng
URI: https://discovery.ucl.ac.uk/id/eprint/10089489
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