MIMO Systems with Intentional Timing Offset

被引:13
|
作者
Das , Aniruddha [1 ]
Rao, Bhaskar D. [2 ]
机构
[1] ViaSat Inc, Carlsbad, CA 92009 USA
[2] Univ Calif San Diego, Ctr Wireless Commun, La Jolla, CA 92093 USA
来源
EURASIP JOURNAL ON ADVANCES IN SIGNAL PROCESSING | 2011年
关键词
NYQUIST; DIVERSITY; DESIGN;
D O I
10.1155/2011/267641
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 performance of MIMO systems with intentional timing offset between the transmitters has recently been the focus of study of different researchers. In these schemes, a nonzero (but known) symbol timing offset is introduced between the signals transmitted from the different transmitters to improve the performance of MIMO systems. This leads to a reduction in Interantenna Interference (IAI), and it is shown that an advanced receiver can utilize this information to extract significant performance gains. In this paper, we show that this transmission scheme may be used in conjunction with different kinds of receivers including ZF, MMSE, and sequence detection-based receivers. We also consider the design of novel pulse shapes that reduce the IAI at the expense of slightly higher intersymbol interference (ISI) and show that additional gains may be achieved.
引用
收藏
页数:14
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