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EURASIP Journal on Wireless Communications and Networking
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On Sum Rate and Power Consumption of Multi-User Distributed Antenna System with Circular Antenna Layout

EURASIP Journal on Wireless Communications and Networking volume 2007, Article number: 089780 (2007) Cite this article

Abstract

We investigate the uplink of a power-controlled multi-user distributed antenna system (DAS) with antennas deployed on a circle. Applying results from random matrix theory, we prove that for such a DAS, the per-user sum rate and the total transmit power both converge as user number and antenna number go to infinity with a constant ratio. The relationship between the asymptotic per-user sum rate and the asymptotic total transmit power is revealed for all possible values of the radius of the circle on which antennas are placed. We then use this rate-power relationship to find the optimal radius. With this optimal radius, the circular layout DAS (CL-DAS) is proved to offer a significant gain compared with a traditional colocated antenna system (CAS). Simulation results are provided, which demonstrate the validity of our analysis.

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Authors and Affiliations

  1. Department of Electronic Engineering, Tsinghua University, Room 4-405 FIT Building, Beijing, 100084, China

    Jiansong Gan, Yunzhou Li, Limin Xiao, Shidong Zhou & Jing Wang

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  1. Jiansong Gan
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  2. Yunzhou Li
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  3. Limin Xiao
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  4. Shidong Zhou
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  5. Jing Wang
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Correspondence to Jiansong Gan.

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Open Access This article is distributed under the terms of the Creative Commons Attribution 2.0 International License (https://creativecommons.org/licenses/by/2.0), which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.

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Gan, J., Li, Y., Xiao, L. et al. On Sum Rate and Power Consumption of Multi-User Distributed Antenna System with Circular Antenna Layout. J Wireless Com Network 2007, 089780 (2007). https://doi.org/10.1155/2007/89780

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  • DOI: https://doi.org/10.1155/2007/89780

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