121488
20190316234245.0
doi
10.1109/TNET.2007.901080
DAR
12656
ISI
000254869100016
ARTICLE
Efficient Broadcasting Using Network Coding
2008
2008
Journal Articles
We consider the problem of broadcasting in an ad-hoc wireless network, where all nodes of the network are sources that want to transmit information to all other nodes. Our figure of merit is energy efficiency, a critical design parameter for wireless networks since it directly affects battery life and thus network lifetime. We prove that applying ideas from network coding allows to realize significant benefits in terms of energy efficiency for the problem of broadcasting, and propose very simple algorithms that allow to realize these benefits in practice. In particular, our theoretical analysis shows that network coding improves performance by a constant factor in fixed networks. We calculate this factor exactly for some canonical configurations. We then show that in networks where the topology dynamically changes, for example due to mobility, and where operations are restricted to simple distributed algorithms, network coding can offer improvements of a factor of log n, where n is the number of nodes in the network. We use the insights gained from the theoretical analysis to propose low-complexity distributed algorithms for realistic wireless ad-hoc scenarios, discuss a number of practical considerations, and evaluate our algorithms through packet level simulation.
Network Coding
Energy efficiency
Broadcast
240968
Fragouli, Christina
161832
241364
Widmer, Joerg
159966
241098
Le Boudec, Jean-Yves
105633
16
2
450-463
IEEE/ACM Transactions on Networking
205365
http://infoscience.epfl.ch/record/121488/files/master.pdf
n/a
252614
LCA
US00024
252453
LCA2
U10427
oai:infoscience.tind.io:121488
IC
article
GLOBAL_SET
LCA-ARTICLE-2008-026
EPFL
REVIEWED
PUBLISHED
ARTICLE