NDLI: Network Protection Codes Against Link Failures Using Network Coding

Content Provider	IEEE Xplore Digital Library
Author	Aly, S.A. Kamal, A.E.
Copyright Year	2008
Description	Author affiliation: Dept. of Electr. & Comput. Eng., Iowa State Univ., Ames, IA (Aly, S.A.; Kamal, A.E.)
Abstract	Protecting against link failures in communication networks is essential to increase robustness, accessibility, and reliability of data transmission. Recently, network coding has been proposed as a solution to provide agile and cost efficient network protection against link failures, which does not require data rerouting, or packet retransmission. To achieve this, separate paths have to be provisioned to carry encoded packets, hence requiring either the addition of extra links, or reserving some of the resources for this purpose. In this paper, we propose network protection codes against a single link failure using network coding, where a separate path using reserved links is not needed. In this case portions of the link capacities are used to carry the encoded packets. The scheme is extended to protect against multiple link failures and can be implemented at an overlay layer. Although this leads to reducing the network capacity, the network capacity reduction is asymptotically small in most cases of practical interest. We demonstrate that such network protection codes are equivalent to error correcting codes for erasure channels. Finally, we study the encoding and decoding operations of such codes over the binary field.
Starting Page	1
Ending Page	6
File Size	152266
Page Count	6
File Format	PDF
ISBN	9781424423248
ISSN	1930529X
DOI	10.1109/GLOCOM.2008.ECP.516
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2008-11-30
Publisher Place	USA
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Protection Network coding Communication networks Error correction codes Decoding Bandwidth Robustness Computer network reliability Telecommunication network reliability Data communication
Content Type	Text
Resource Type	Article

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