On the Optimal Placement of Base Station Antennas for Distributed Antenna Systems

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Original languageEnglish
Article number9180319
Pages (from-to)2878-2882
Number of pages5
Journal / PublicationIEEE Communications Letters
Issue number12
Online published31 Aug 2020
Publication statusPublished - Dec 2020


In this letter, we aim to optimize the placement of base station (BS) antennas for maximizing the average ergodic sum capacity of a multi-user distributed antenna system (DAS). Different from previous studies where deterministic optimization approaches were usually taken, we formulate the BS antenna placement as a stochastic optimization problem, and propose a stochastic-gradient-descend-based algorithm to effectively solve it. Simulation results demonstrate that the proposed algorithm converges fast and provides significant gains in average ergodic sum capacity over the existing representative BS antenna placement schemes.

Research Area(s)

  • Distributed antenna system, base station antenna placement, average ergodic sum capacity, stochastic optimization