| Conference Paper |
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| Title |
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Network Coding vs. Erasure Coding: Reliable Multicast in Wireless Ad hoc Networks
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| Abstract |
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Providing reliable and efficient networking services in
wireless ad hoc networks is extremely challenging due to
high mobility and unstable wireless nature: a significant
number of packets can be corrupt or lost. To increase the
reliability in packet erasure networks, various coding
schemes have been proposed. Network coding (NC) and
erasure coding (EC) are such well-known coding
techniques recently considered to be used for multicast
communications. Both schemes are able to encode original
packets into a potentially infinite data stream of encoded
packets. Receivers can reconstruct the original packets once
they have collected a certain number of encoded packets.
The main difference of these schemes is that NC allows
intermediate nodes to encode packets they have received so
far whereas EC is an end-to-end coding which allows only
sources to encode. Both schemes are considered to be able
to provide excellent ammunition against erasure networks.
However, “the jury is still out” regarding which scheme is
suitable in ad hoc networks. In this paper, based on
simulations and analysis study, we present information on
the performance of both schemes which may be useful for
selecting the better coding scheme.
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| Download |
Paper: PDF file of paper
Slides: PPT file of slides
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| Information & Date |
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Milcom '08, San Diego, November. 2008
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| Authors |
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Atsushi Fujimura
Soon Young Oh
Mario Gerla
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