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- W2325575128 abstract "Performance of MIMO technology is highly dependent on the surrounding propagation environment and antenna configuration. In order to benefit from MIMO technology inside underground mines with low angular spread, careful antenna design and deployment strategies are required. In this regard, we studied the effect of uniform-linear-array (ULA) configuration on the MIMO channel capacity inside a short underground service tunnel. With its extensive infrastructure, this tunnel represents a typical midsize underground-mine tunnel. We simulated and measured channel frequency response at 2.49 GHz for grids of transmitters and receivers in different parts of the tunnel while taking into account practical considerations for access point (AP) deployments. All the ULA configurations were deployed either close to the sidewalls or under the ceiling. Among them, two configurations, which show the best performance for AP communications, were identified. For these configurations, we found that interelement separation requires to be four times longer than in conventional indoor environment with rich multipath (i.e., $2lambda$ ) to provide decorrelation among MIMO subchannels. We also found that infrastructure which has been neglected in previous studies, significantly degrades MIMO performance. Insightful results and guidelines for employing MIMO technology in underground mines can significantly benefit mining industry." @default.
- W2325575128 created "2016-06-24" @default.
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- W2325575128 date "2016-05-01" @default.
- W2325575128 modified "2023-09-24" @default.
- W2325575128 title "Effect of Antenna Configuration on MIMO-Based Access Points in a Short Tunnel With Infrastructure" @default.
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- W2325575128 doi "https://doi.org/10.1109/tcomm.2016.2538769" @default.
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