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TWC
2010

Coordinated beamforming for the multicell multi-antenna wireless system

12 years 10 months ago
Coordinated beamforming for the multicell multi-antenna wireless system
In a conventional wireless cellular system, signal processing is performed on a per-cell basis; out-of-cell interference is treated as background noise. This paper considers the benefit of coordinating base-stations across multiple cells in a multi-antenna beamforming system, where multiple base-stations may jointly optimize their respective beamformers to improve the overall system performance. Consider a multicell downlink scenario where base-stations are equipped with multiple transmit antennas employing either linear beamforming or nonlinear dirty-paper coding, and where remote users are equipped with a single antenna each, but where multiple remote users may be active simultaneously in each cell. This paper focuses on the design criteria of minimizing either the total weighted transmitted power or the maximum per-antenna power across the base-stations subject to signal-to-interference-and-noise-ratio (SINR) constraints at the remote users. The main contribution of the paper is an ...
Hayssam Dahrouj, Wei Yu
Added 23 May 2011
Updated 23 May 2011
Type Journal
Year 2010
Where TWC
Authors Hayssam Dahrouj, Wei Yu
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