MIMO wireless communication channel phenomenology

被引：21

作者：

Bliss, DW ^{[1
]}

Chan, AM

Chang, NB

机构：

[1] MIT, Lincoln Lab, Adv Sensor Tech Grp, Lexington, MA 02420 USA

[2] Univ Michigan, Dept Elect Engn & Comp Sci, Ann Arbor, MI 48109 USA

来源：

IEEE TRANSACTIONS ON ANTENNAS AND PROPAGATION | 2004年 / 52卷 / 08期

关键词：

channel coding; information theory; multipath channels; multiple-input multiple-output (MIMO) systems;

D O I：

10.1109/TAP.2004.832363

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：

Wireless communication using multiple-input multiple-output (MIMO) systems enables increased spectral efficiency and link reliability for a given total transmit power. Increased capacity is achieved by introducing additional spatial channels which are exploited using space-time coding. The spatial diversity improves the link reliability by reducing the adverse effects of link fading and shadowing. The choice of coding and the resulting performance improvement are dependent upon the channel phenomenology. In this paper, experimental channel-probing estimates are reported for outdoor environments near the personal communication services frequency allocation (1790 MHz). A simple channel parameterization is introduced. Channel distance metrics are introduced. Because the bandwidth of the channel-probing signal (1.3 MHz) is sufficient to resolve some delays in outdoor environments, frequency-selective fading is also investigated. Channel complexity and channel stationarity are investigated. Complexity is associated with channel-matrix singular. value distributions. Stationarity is associated with the stability of channel singular value and singular vector structure over time.

引用

页码：2073 / 2082

页数：10

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