Throughput Multiplexing Efficiency for MIMO Antenna Characterization

被引:25
作者
Chen, Xiaoming [1 ]
机构
[1] Chalmers Univ Technol, Dept Signals & Syst, S-41296 Gothenburg, Sweden
来源
IEEE ANTENNAS AND WIRELESS PROPAGATION LETTERS | 2013年 / 12卷
关键词
Antennas; multiple-input-multiple-output (MIMO); spatial multiplexing (SM); throughput;
D O I
10.1109/LAWP.2013.2282952
中图分类号
TM [电工技术]; TN [电子技术、通信技术];
学科分类号
0808 ; 0809 ;
摘要
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.
引用
收藏
页码:1208 / 1211
页数:4
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