000121488 001__ 121488
000121488 005__ 20180318102523.0
000121488 0247_ $$2doi$$a10.1109/TNET.2007.901080
000121488 02470 $$2DAR$$a12656
000121488 02470 $$2ISI$$a000254869100016
000121488 037__ $$aARTICLE
000121488 245__ $$aEfficient Broadcasting Using Network Coding
000121488 269__ $$a2008
000121488 260__ $$c2008
000121488 336__ $$aJournal Articles
000121488 520__ $$aWe 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.
000121488 6531_ $$aNetwork Coding
000121488 6531_ $$aEnergy efficiency
000121488 6531_ $$aBroadcast
000121488 700__ $$0240968$$aFragouli, Christina$$g161832
000121488 700__ $$0241364$$aWidmer, Joerg$$g159966
000121488 700__ $$0241098$$aLe Boudec, Jean-Yves$$g105633
000121488 773__ $$j16$$k2$$q450-463$$tIEEE/ACM Transactions on Networking
000121488 8564_ $$s205365$$uhttps://infoscience.epfl.ch/record/121488/files/master.pdf$$zn/a
000121488 909CO $$ooai:infoscience.tind.io:121488$$pIC$$particle
000121488 909C0 $$0252614$$pLCA$$xUS00024
000121488 909C0 $$0252453$$pLCA2$$xU10427
000121488 937__ $$aLCA-ARTICLE-2008-026
000121488 973__ $$aEPFL$$rREVIEWED$$sPUBLISHED
000121488 980__ $$aARTICLE