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Throughput Multiplexing Efficiency for MIMO Antenna Characterization

Xiaoming Chen (Institutionen för signaler och system, Antenner)
IEEE Antennas and Wireless Propagation Letters (1536-1225). Vol. 12 (2013), p. 1208-1211.
[Artikel, refereegranskad vetenskaplig]

The antenna-channel effects on multiple-input-multiple-output (MIMO) throughput are characterized in terms of spatial multiplexing (SM) efficiency. In order to show the antenna effects explicitly, the SM efficiency of an MIMO system (with imperfect transmit antennas) is derived analytically at high signal-to-noise ratio (SNR) regime. It is shown that correlation and power imbalance affect the throughput adversely (as expected) and independently. Although derived for imperfect transmit antennas, the close-form SM efficiency formula turns out to be accurate for 2 x 2 MIMO systems with imperfect receive antennas as well. It is also shown that the derived SM efficiency formula even reasonably predicts the measured SM efficiency of a Long Term Evolution (LTE) system.

Nyckelord: Antennas; multiple-input-multiple-output (MIMO); spatial multiplexing (SM); throughput

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Denna post skapades 2013-10-02. Senast ändrad 2013-11-13.
CPL Pubid: 184562


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Institutioner (Chalmers)

Institutionen för signaler och system, Antenner (2005-2014)


Informations- och kommunikationsteknik
Elektroteknik och elektronik

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