Capacity of noncoherent multisource network coding

Capacity of noncoherent multisource network coding. Jafarisiavoshani, M., Mohajer, S., Fragouli, C., & Diggavi, S N. IEEE Transactions on Information Theory, 57(2), February, 2011.

Arxiv abstract bibtex

We propose a channel model for the non-coherent network coding introduced by Koetter and Kschischang. The model captures the essence of such a network operation, and we use it to calculate the capacity of non-coherent network codes as a function of network parameters. We prove that use of subspace coding is optimal, and show that, in some cases, the capacity-achieving distribution uses subspaces of several dimensions, where the employed dimensions depend on the packet length.

@article{JMFDj11,
 abstract = {We propose a channel model for the non-coherent network coding introduced by Koetter and Kschischang.  The model captures the essence of such a network operation, and we use it to calculate the capacity of non-coherent network codes as a function of network parameters. We prove that use of subspace coding is optimal, and show that, in
some cases, the capacity-achieving distribution uses subspaces of several dimensions, where the employed dimensions depend on the packet length.},
 author = {M. Jafarisiavoshani and S. Mohajer and C. Fragouli and S N. Diggavi},
 file = {:papers:jmfdnoncoherent10.pdf},
 journal = {IEEE Transactions on Information Theory},
 month = {February},
 number = {2},
 pages = {},
 tags = {journal,NonCohComm,NetCod,Subsp,IT},
 title = {Capacity of noncoherent multisource network coding},
 type = {2},
 url_arxiv = {http://arxiv.org/abs/1001.1658},
 volume = {57},
 year = {2011}
}

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