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Measurement Based MIMO Channel Capacity in an Urban Canyon Environment at the 3.7 GHz Band
Jae-Woo LIM Se-Woong KWON Youn-Hyun PARK Hyun-Goo YOON Jong-Gwan YOOK Yong-Joong YOON
IEICE TRANSACTIONS on Communications
Publication Date: 2008/12/01
Online ISSN: 1745-1345
Print ISSN: 0916-8516
Type of Manuscript: LETTER
Category: Antennas and Propagation
MIMO, capacity, measurement,
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This paper describes the measurements made in an urban canyon environment of a relay network scenario to determine the capacity of the multiple-input-multiple-output (MIMO) channel. While varying antenna number and spacing, we measure the channel matrices in the 3.7 GHz band using a 44 switching MIMO channel sounder. The results show that antenna spacing is shown to have less impact than signal-to-noise (SNR) on MIMO channel capacity in a line-of-sight (LOS) environment when physical antenna spacing is selected at four wavelengths. As a result, in an urban MIMO LOS scenario, a base station can provide sufficient data throughput to relay station because most links from base station to relay station have LOS environment and are free from restriction of antenna spacing.