Experimental Study on MIMO Performance of Modulated Scattering Antenna Array in Indoor Environment

Qiang CHEN
Qiaowei YUAN

IEICE TRANSACTIONS on Communications   Vol.E93-B    No.3    pp.679-684
Publication Date: 2010/03/01
Online ISSN: 1745-1345
DOI: 10.1587/transcom.E93.B.679
Print ISSN: 0916-8516
Type of Manuscript: PAPER
Category: Antennas and Propagation
antenna,  antenna array,  modulation,  wireless communications,  mobile handset,  MIMO,  

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The modulated scattering antenna array (MSAA) is composed of one normal antenna element and several modulated scattering elements (MSEs). In this paper, a 2-element MSAA is used as the receiving antenna in a 2 2 multiple input multiple output (MIMO) system. MIMO performance of MSAA with various array spacing is measured to investigate the relation between the array spacing and the MIMO performance of the MSAA experimentally in the non-line-of-sight (NLOS) indoor environment. It is found that the error vector magnitude (EVM) and the channel capacity, which reflect MIMO performance, can be affected by the array spacing. The measured results of the MSAA were compared with that of two-dipole antenna array at the same condition.