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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