Outage-based designs for multi-user transceivers

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Outage-based designs for multi-user transceivers
We consider a broadcast channel with multiple antennas at the base station and single-antenna receivers, and we study transceiver design with Quality of Service (QoS) requirements in the presence of uncertain channel state information (CSI) at the transmitter. Each user's QoS requirement is formulated as an upper bound on the outage probability of the mean square error (MSE), and we demonstrate that these constraints imply bounds on the outage of the received signal-to-interference-plus-noise-ratio. Using this MSE framework, we provide a unified approach to the design of non-linear and linear transceivers that minimize the transmitted power required to satisfy the QoS constraints. We present three conservative design approaches that yield (deterministic) convex and efficiently-solvable design formulations that guarantee the satisfaction of the QoS constraints, and we propose computationally-efficient algorithms that can reduce the level of conservatism in the initial formulations...
Michael Botros Shenouda, Timothy N. Davidson
Added 18 Feb 2011
Updated 18 Feb 2011
Type Journal
Year 2009
Authors Michael Botros Shenouda, Timothy N. Davidson
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