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Comparison of different MIMO antenna arrays and user's effect on their performances

C. Gomez-Calero ; Nima Jamaly (Institutionen för signaler och system, Kommunikationssystem) ; R. Martinez ; L. de Haro
Microwave and Optical Technology Letters (0895-2477). Vol. 55 (2013), 9, p. 2039-2043.
[Artikel, refereegranskad vetenskaplig]

Multiple-input multiple-output (MIMO) systems have entailed a great enhancement in wireless communications performances. The use of multiple antennas at each side of the radio link has been included in recent drafts and standards such as WLAN, WIMAX, or DVB-T2. The MIMO performances depend on the antenna array characteristics and thus several aspects have to be taken into account to design MIMO antennas. In the literature, many articles can be found in terms of capacity or antenna design, but in this article, different types of antenna arrays for MIMO systems are measured in a reverberation chamber with and without a phantom as a users head. As a result, the MIMO performances are degraded by the user in terms of efficiency, diversity gain, and capacity. Omnidirectional antennas such as monopoles with high radiation efficiency offer the highest performance for a rich scattering nonline of sight indoor environment.

Nyckelord: multiple-input multiple-output, diversity gain, capacity, antenna



Denna post skapades 2014-01-17. Senast ändrad 2016-08-18.
CPL Pubid: 192801

 

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Institutioner (Chalmers)

Institutionen för signaler och system, Kommunikationssystem

Ämnesområden

Elektroteknik och elektronik

Chalmers infrastruktur