A MIMO System With Multifunctional Reconfigurable Antennas

A multiple-input-multiple-output (MIMO) system equipped with a new class of antenna arrays, henceforth referred to as multifunction reconfigurable antenna arrays (MRAAs), is investigated. The elements of MRAA, i.e., multifunction reconfigurable antennas (MRAs) presented in this work are capable of d...

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Bibliographic Details
Published in:IEEE antennas and wireless propagation letters 2006, Vol.5 (1), p.463-466
Main Authors: Cetiner, B. A., Akay, E., Sengul, E., Ayanoglu, E.
Format: Article
Language:English
Subjects:
Adaptive arrays
Adaptive systems
Antenna arrays
Antennas and propagation
Bandwidth
Microelectromechanical systems (MEMS)
MIMO
multifunction reconfigurable antenna (MRA)
multiple-input-multiple-output (MIMO)
Performance gain
Polarization
Samarium
Transmitting antennas
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Summary:A multiple-input-multiple-output (MIMO) system equipped with a new class of antenna arrays, henceforth referred to as multifunction reconfigurable antenna arrays (MRAAs), is investigated. The elements of MRAA, i.e., multifunction reconfigurable antennas (MRAs) presented in this work are capable of dynamically changing the sense of polarization of the radiated field thereby providing two reconfigurable modes of operation, i.e., polarization diversity and space diversity. The transmission signaling scheme can also be switched between transmit diversity (TD) and spatial multiplexing (SM). The results show that the reconfigurable modes of operation of an MRAA used in conjunction with adaptive space-time modulation techniques provide additional degrees of freedom to the current adaptive MIMO systems, resulting in more robust system in terms of quality, capacity and reliability. A performance gain up to 30 dB is possible with the proposed system over conventional fixed antenna MIMO systems depending on the channel conditions
ISSN:1536-1225
1548-5757
DOI:10.1109/LAWP.2006.885171