Downlink multicell processing with limited-backhaul capacity
EURASIP Journal on Advances in Signal Processing - Multiuser MIMO Transmission with Limited Feedback, Cooperation, and Coordination
Networked MIMO with clustered linear precoding
IEEE Transactions on Wireless Communications
Opportunistic cell edge selection in multi-cell OFDMA networks
GLOBECOM'09 Proceedings of the 28th IEEE conference on Global telecommunications
Channel norm-based user scheduler in coordinated multi-point systems
GLOBECOM'09 Proceedings of the 28th IEEE conference on Global telecommunications
Fast distributed multi-cell scheduling with delayed limited-capacity backhaul links
ICC'09 Proceedings of the 2009 IEEE international conference on Communications
Iterative linear MMSE transmit and receive strategies for cellular MIMO networks
Asilomar'09 Proceedings of the 43rd Asilomar conference on Signals, systems and computers
Sum-rate maximizing beamforming in multicell systems with limited feedback
Asilomar'09 Proceedings of the 43rd Asilomar conference on Signals, systems and computers
Adaptive spatial intercell interference cancellation in multicell wireless networks
IEEE Journal on Selected Areas in Communications - Special issue on cooperative communications in MIMO cellular 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
Selfish manipulation of cooperative cellular communications via channel fabrication
Proceedings of the sixth ACM conference on Security and privacy in wireless and mobile networks
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The capacity and robustness of cellular MIMO systems is very sensitive to other-cell interference which will in practice necessitate network level interference reduction strategies. As an alternative to traditional static frequency reuse patterns, this paper investigates intercell scheduling among neighboring base stations. We show analytically that cooperatively scheduled transmission, which is well within the capability of present systems, can achieve an expanded multiuser diversity gain in terms of ergodic capacity as well as almost the same amount of interference reduction as conventional frequency reuse. This capacity gain over conventional frequency reuse is O (M t square-root of log Ns) for dirty paper coding and O (min (Mr, Mt) square-root of log Ns) for time division, where Ns is the number of cooperating base stations employing opportunistic scheduling in an M t x M r MIMO system. From a theoretical standpoint, an interesting aspect of this analysis comes from an altered view of multiuser diversity in the context of a multi-cell system. Previously, multiuser diversity capacity gain has been known to grow as O(log log K), from selecting the maximum of K exponentially-distributed powers. Because multicell considerations such as the positions of the users, lognormal shadowing, and pathless affect the multiuser diversity gain, we find instead that the gain is O(square-root of 2logic K), from selecting the maximum of a compound Iognormal-exponential distribution. Finding the maximum of such a distribution is an additional contribution of the paper.