On the role of the number of degrees of freedom of the field in MIMO channels

被引：100
|
作者：
Migliore, MD [1 ]
机构：
[1] Univ Cassino, DAEIMI, Microwave Lab, I-03043 Cassino, Italy
来源：
IEEE TRANSACTIONS ON ANTENNAS AND PROPAGATION | 2006年 / 54卷 / 02期
关键词：
channel capacity; degrees of freedom; multiple input multiple output (MIMO) channel;
D O I：
10.1109/TAP.2005.863108
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 aim of this paper is to investigate the relationship between the effective number of degrees of freedom (ENDF) of a multiple input multiple output (MIMO) channel and the number of degrees of freedom (NDF) of the field. In particular, the NDF of the field represents an upperbound for the ENDF of a MIMO channel. Consequently, the evaluation of the maximum ENDF can be carried out by adopting the literature on the NDF based on the spatial bandlimitation properties of the field. This approach allows a simple and intuitive explanation of the maximum ENDF in a MIMO channel based on a geometrical interpretation of the spatial channel in terms of (spatial) Nyquist intervals.
引用
收藏
页码：620 / 628
页数：9
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