Analog impairments in MIMO-OFDM systems

被引：0
|
作者：
Rao, Raghu Mysore
Daneshrad, Babak
机构：
[1] Xilinx Inc, Adv Syst Technol Grp, DSP Div, Austin, TX 78746 USA
[2] Univ Calif Los Angeles, Dept Elect Engn, Los Angeles, CA 90095 USA
来源：
IEEE TRANSACTIONS ON WIRELESS COMMUNICATIONS | 2006年 / 5卷 / 12期
关键词：
analog impairments; I/Q imbalance; I/Q mismatch; MIMO-OFDM; phase noise;
D O I：
10.1109/TWC.2006.256960
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：
MIMO-OFDM is being considered for communication systems where high throughput and spectral efficiency are important factors. Analog impairments like I/Q mismatch and phase noise significantly degrade and limit the performance of communication systems: In this paper, we analyze the impact of I/Q mismatch and phase noise in MIMO-OFDM systems as a function of the number of antennas. We show the improvement in performance that is possible when these impairments are cancelled. We also discuss the impact of correlated and uncorrelated phase noise in MIMO-OFDM systems. Finally, we show the results of I/Q mismatch and phase noise cancellation in wireless measurements performed using a 2x2 MIMO-OFDM testbed.
引用
收藏
页码：3382 / 3387
页数：6
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