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Conference Paper Channelization for Network Coding in Wireless Networks
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Authors
Raju Kumar, Hee Sook Choi, Jae Sheung Shin, Thomas La Porta
Issue Date
2008-04
Citation
IEEE Conference on Computer Communications (INFOCOM) 2008, pp.1031-1039
Publisher
IEEE
Language
English
Type
Conference Paper
DOI
https://dx.doi.org/10.1109/INFOCOM.2007.82
Abstract
Network coding is increasingly being investigated as an alternative to routing to increase throughput in packet networks. Like most data transfer schemes, the effectiveness of network coding may be limited by extreme congestion. When using network coding, these congested conditions are mitigated somewhat, but may still occur. We propose a selective channelization scheme in which links that experience congestion at a level that cannot be overcome by network coding are given reserved communication resources. This method has the following benefits. First, the algorithm proposed allows network coding full opportunity to overcome congestion before performing channelization, thus reducing the number of reserved resources used. Second, when triggered, the channelization of severely congested links greatly improves the end-to-end performance of flows that traverse the channelized link. To determine the point at which channelization should be triggered, we perform a thorough analysis of potential coding gains in a network facing errors due to collisions, and determine the point at which network coding loses its effectiveness. © 2008 IEEE.
KSP Keywords
Coding Gain, Communication resources, Data transfer, End to End(E2E), End-to-end performance, Packet network, Wireless network, network coding