IEEE Transactions on Information Theory
IEEE Transactions on Information Theory
Interference alignment and the degrees of freedom of wireless X networks
IEEE Transactions on Information Theory
Sum capacity of multi-source linear finite-field relay networks with fading
ISIT'09 Proceedings of the 2009 IEEE international conference on Symposium on Information Theory - Volume 3
Ergodic interference alignment
ISIT'09 Proceedings of the 2009 IEEE international conference on Symposium on Information Theory - Volume 3
Approximate capacity of a class of Gaussian relay-interference networks
ISIT'09 Proceedings of the 2009 IEEE international conference on Symposium on Information Theory - Volume 1
Capacity scaling laws in MIMO relay networks
IEEE Transactions on Wireless Communications
Interference Alignment and Degrees of Freedom of the -User Interference Channel
IEEE Transactions on Information Theory
Gaussian Interference Channel Capacity to Within One Bit
IEEE Transactions on Information Theory
On the diversity-multiplexing tradeoff of multiuser amplify & forward multihop networks
Asilomar'09 Proceedings of the 43rd Asilomar conference on Signals, systems and computers
| Hi-index | 0.00 |
We study a multi-source Gaussian relay network consisting of K source-destination pairs having K unicast sessions. We assume M layers of relays between the sources and the destinations. We find achievable degrees of freedom of the network. Our schemes are based on interference alignment at the transmitters and symbol extension and opportunistic interference cancellation at the relays. For K-L-K networks, i.e., 2-hop network with L relays, we show min{K,K/2 + L/(2(K - 1))} degrees of freedom are achievable. For K-hop networks with K relays in each layer, we show the full K degrees of freedom are achievable provided that K is even and the channel distribution satisfies a certain symmetry.