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Title: Downlink beamforming in clustered cooperative multicell MIMO systems
Authors: Li, Kwok Hung
Teh, Kah Chan
Zhang, Zhiyu.
Keywords: DRNTU::Engineering::Electrical and electronic engineering
Issue Date: 2012
Source: Zhang, Z., Teh, K. C., & Li, K. H. (2012). Downlink beamforming in clustered cooperative multicell MIMO systems. 2012 IEEE International Conference on Communication Systems (ICCS).
Abstract: Base station cooperation has been shown to be an effective way to increase the system capacity and to suppress interference in mobile communications. A clustered multicell system is studied in this paper, where the mobile stations (MSs) will encounter intra-cluster and inter-cluster interference. By sharing the user data among base stations (BSs), one MS can be served by several BSs simultaneously, which enhances the sum rate at the MSs. The BS needs the channel state information (CSI) feedback from the MS to design its beamforming scheme. Herein, we analyze the distributed cooperation where each BS has only local CSI. A distributed beamforming technique based on the uplink-downlink duality is applied. Imperfect CSI through limited feedback is also investigated. Simulation results show that the system performance in terms of the quantized channel is close to the performance given full CSI.
DOI: 10.1109/ICCS.2012.6406203
Rights: © 2012 IEEE.
Fulltext Permission: none
Fulltext Availability: No Fulltext
Appears in Collections:EEE Conference Papers

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