The Optimal Antenna Layout for Maximum Ergodic Capacity of MISO Beamforming System | Zendy

Qianya Wang | Zendy; Hongwen Yang | Zendy

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The Optimal Antenna Layout for Maximum Ergodic Capacity of MISO Beamforming System

Author(s) -

Qianya Wang,

Hongwen Yang

Publication year - 2013

Publication title -

international journal of antennas and propagation

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 0.282

H-Index - 37

eISSN - 1687-5877

pISSN - 1687-5869

DOI - 10.1155/2013/454916

Subject(s) - antenna (radio) , beamforming , simulated annealing , computer science , electronic engineering , mathematical optimization , topology (electrical circuits) , telecommunications , algorithm , mathematics , engineering , electrical engineering

The performance of the multiantenna systems can be deeply affected by the antenna layout, that is, the placement of the antenna elements in a given area. This paper focuses on the optimal antenna layout which can maximize the ergodic capacity of a multi-input single-output (MISO) beamforming system. Since the optimization problem cannot be solved analytically, we use simulated annealing (SA) algorithm to search for the optimal antenna layout. The results show that the optimal antenna layout depends highly on the power azimuth spectrum (PAS) distribution and power elevation spectrum (PES) distribution. In the three-dimensional (3D) space uniformly scattering environment, the optimal antenna layout will locate the antenna elements on the surface of a sphere. When the scattering is concentrated in a two-dimensional (2D) plane, the circular layout is the optimal and finally, when there is no scattering (single plane wave), the optimal layout is the nonuniform linear array. © 2013 Qianya Wang and Hongwen Yang.

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