Capacity and spatial correlation measurements for wideband distributed MIMO channel in aircraft cabin environment

2012 IEEE Wireless Communications and Networking Conference (WCNC) Pub Date : 2012-04-01 DOI:10.1109/WCNC.2012.6213954

Zhenghui Li, F. Luan, Yan Zhang, Limin Xiao, Lianfeng Huang, Shidong Zhou, Xibin Xu, Jing Wang

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引用次数: 15

Abstract

In this paper we present some channel measurement results of distributed multiple-input multiple-output (D-MIMO) systems inside a MD-82 aircraft. Channel capacity and spatial correlation are analyzed from the measured channel matrix. Capacity results of 7 different systems (six D-MIMO systems and a SISO system) are discussed. It is found that D-MIMO systems yield significant capacity gains as compared to SISO system. Spatial correlations among transmitter (Tx) antennas distributed above the cabin aisle are statistically analyzed from the measured data. Result shows that, when receiver (Rx) antenna array is placed in the front or back of the cabin, some Tx antenna pairs are highly correlative (correlation coefficients are higher than 0.8). The effect of Tx antenna selection on capacity characteristic of in-cabin D-MIMO system is also studied. It is found that Tx antenna selection can further improve channel capacity and the optimum selected Tx antennas are usually the ones near to the Rx array.

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机舱环境下宽带分布式MIMO信道容量和空间相关测量

本文给出了MD-82飞机上分布式多输入多输出(D-MIMO)系统的信道测量结果。根据测量的信道矩阵分析了信道容量和空间相关性。讨论了7种不同系统(6种D-MIMO系统和1种SISO系统)的容量结果。研究发现，与SISO系统相比，D-MIMO系统产生显著的容量增益。根据实测数据，统计分析了分布在客舱通道上方的发射天线间的空间相关性。结果表明，当接收机(Rx)天线阵列放置在座舱前部或后部时，部分Tx天线对高度相关(相关系数大于0.8)。研究了Tx天线的选择对座舱D-MIMO系统容量特性的影响。研究发现，Tx天线的选择可以进一步提高信道容量，最佳选择的Tx天线通常是靠近Rx阵列的天线。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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2012 IEEE Wireless Communications and Networking Conference (WCNC)

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