Antenna Location Optimization for Circular-Layout Distributed Antenna Systems

Xinzheng WANG  Pengcheng ZHU  Ming CHEN  

IEICE TRANSACTIONS on Communications   Vol.E92-B    No.9    pp.2980-2983
Publication Date: 2009/09/01
Online ISSN: 1745-1345
DOI: 10.1587/transcom.E92.B.2980
Print ISSN: 0916-8516
Type of Manuscript: LETTER
Category: Wireless Communication Technologies
distributed antenna system (DAS),  average transmit power,  antenna location optimization,  codebook design,  

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The distributed antenna system (DAS) offers significant power savings but only if the antennas are properly located. In this letter, we convert antenna location optimization to the codebook design problem. For the widely studied circular-layout DAS with uniform user distribution, we derive closed-form expressions for antenna locations that yield near-optimal performance. For more general user distribution and antenna topology, the codebook design algorithms can provide numerical optimization results with acceptable performance and low complexity.