Networked MIMO with clustered linear precoding
IEEE Transactions on Wireless Communications
Interference alignment and the degrees of freedom of wireless X networks
IEEE Transactions on Information Theory
Degrees of freedom of the MIMO interference channel with cooperation and cognition
IEEE Transactions on Information Theory
Distributed MIMO systems for nomadic applications over a symmetric interference channel
IEEE Transactions on Information Theory
Iterative MMSE precoding for MIMO interference channel
WiCOM'09 Proceedings of the 5th International Conference on Wireless communications, networking and mobile computing
Optimal multiplexing gain of K-user line-of-sight interference channels with polarization
Allerton'09 Proceedings of the 47th annual Allerton conference on Communication, control, and computing
Isotropic MIMO interference channels without CSIT: the loss of degrees of freedom
Allerton'09 Proceedings of the 47th annual Allerton conference on Communication, control, and computing
Analysis of degrees of freedom of interfering MISO broadcast channels
GLOBECOM'09 Proceedings of the 28th IEEE conference on Global telecommunications
A two-stage precoding method based on interference alignment for interference channel systems
GLOBECOM'09 Proceedings of the 28th IEEE conference on Global telecommunications
An iterative precoder optimization method for K-user interference channel systems
GLOBECOM'09 Proceedings of the 28th IEEE conference on Global telecommunications
Feasibility conditions for interference alignment
GLOBECOM'09 Proceedings of the 28th IEEE conference on Global telecommunications
GLOBECOM'09 Proceedings of the 28th IEEE conference on Global telecommunications
Degrees of freedom and sum rate maximization for two mutually interfering broadcast channels
ICC'09 Proceedings of the 2009 IEEE international conference on Communications
Weighted sum-rate maximization scheduling for MIMO ad hoc networks
ICC'09 Proceedings of the 2009 IEEE international conference on Communications
Linear precoder designs for K-user interference channels
IEEE Transactions on Wireless Communications
A tractable and accurate cross-layer model for multi-hop MIMO networks
INFOCOM'10 Proceedings of the 29th conference on Information communications
Cognitive radios with multiple antennas exploiting spatial opportunities
IEEE Transactions on Signal Processing
IEEE Transactions on Information Theory
IEEE Transactions on Signal Processing
On feasibility of interference alignment in MIMO interference networks
IEEE Transactions on Signal Processing
Spatial multiplexing gain for two interfering MIMO broadcast channels based on linear transceiver
IEEE Transactions on Wireless Communications
Zero-Forcing Spatial Interweave with Greedy Scheduling
Wireless Personal Communications: An International Journal
| Hi-index | 755.09 |
In this correspondence, we show that the exact number of spatial degrees of freedom (DOF) for a two user nondegenerate (full rank channel matrices) multiple-input-multiple-output (MIMO) Gaussian interference channel with M1, M2 antennas at transmitters 1, 2 and N1, N2 antennas at the corresponding receivers, and perfect channel knowledge at all transmitters and receivers, is min{M1 + M2, N1 + M2, max(M1, N2), max(M2, N1)}. A constructive achievability proof shows that zero forcing is sufficient to achieve all the available DOF on the two user MIMO interference channel. We also show through an example of a share-and-transmit scheme how the gains of transmitter cooperation may be entirely offset by the cost of enabling that cooperation so that the available DOF are not increased.