Networked MIMO with clustered linear precoding
IEEE Transactions on Wireless Communications
Waterfilling schemes for zero-forcing coordinated base station transmission
GLOBECOM'09 Proceedings of the 28th IEEE conference on Global telecommunications
Block diagonalization in the MIMO broadcast channel with delayed CSIT
GLOBECOM'09 Proceedings of the 28th IEEE conference on Global telecommunications
A decentralized framework for dynamic downlink base station cooperation
GLOBECOM'09 Proceedings of the 28th IEEE conference on Global telecommunications
Iterative linear MMSE transmit and receive strategies for cellular MIMO networks
Asilomar'09 Proceedings of the 43rd Asilomar conference on Signals, systems and computers
Antenna selection in coordinated multi-cell MIMO system
CAR'10 Proceedings of the 2nd international Asia conference on Informatics in control, automation and robotics - Volume 3
Multimode transmission in network MIMO downlink with incomplete CSI
EURASIP Journal on Advances in Signal Processing - Special issue on cooperative MIMO multicell networks
Optimal multiuser zero forcing with per-antenna power constraints for network MIMO coordination
EURASIP Journal on Wireless Communications and Networking - Special issue on multimedia communications over next generation wireless networks
| Hi-index | 0.01 |
Block diagonalization is one approach for linear preceding in the multiple-input multiple-output broadcast channel that sends multiple interference free data streams to different users in the same cell. Unfortunately, block diagonalization neglects other-cell interference (OCI), which limits the performance of users at the edge of the cell. This paper presents an OCI-aware enhancement to block diagonalization that uses a whitening filter for interference suppression at the receiver and a novel precoder using the interference-plus-noise covariance matrix for each user at the transmitter. For complex Gaussian matrix channels, the asymptotic sum rate of the proposed system is analyzed under a large antenna assumption for isotropic inputs and compared to conventional block diagonalization. The capacity loss due to OCI is quantified in terms of results from single-user MIMO capacity. Several numerical examples compare achievable sum rates, the proposed asymptotic rates, and the capacity loss, in low and high interference regimes.