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Citation |
Aziminejad A, He Y. IEEE Veh. Tech. Mag. 2020; 15(1): 99-106. |
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Copyright |
(Copyright © 2020, Institute of Electrical and Electronics Engineers, Inc.) |
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DOI |
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PMID |
unavailable |
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Abstract |
The rail transportation industry has seen a growing interest in the use of radio-access technology (RAT) for critical and noncritical services to improve safety/reliability, performance, and passenger experience. There is a practical incentive to investigate how to improve wayside-onboard wireless channel throughput and transmission reliability to address the different requirements of data transmission. To this end, during the past two decades, the theory and practice of multiple-input/multiple-output (MIMO) communications has solidified to the point where MIMO is now the main infrastructure for several legacy and emerging radio-access standards. In this article, the impact of subway tunnels' curvatures on MIMO channel capacity is explored. A heuristic approach is proposed, providing an efficient and low-complexity solution for MIMO channel capacity in curved subway tunnels within both the collocated MIMO (C-MIMO) and distributed MIMO (D-MIMO) paradigms. The suggested approach is quite versatile and can be swiftly expanded to multisegment, inhomogeneous tunnels. Language: en |
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Keywords |
C-MIMO; channel capacity; Channel capacity; channel throughput; channel transmission reliability; collocated MIMO; curved tunnels; D-MIMO; data transmission requirements; distributed MIMO; heuristic method; industry growing; Manganese; MIMO channel capacity; MIMO communication; MIMO communications; multiple-input multiple-output communications; Public transportation; radio access networks; radio communication; radio-access technology; radiowave propagation; rail transit applications; rail transportation industry; railway communication; Receiving antennas; subway tunnel curvatures; telecommunication network reliability; Transmitting antennas; tunnels; underground communication; wayside-onboard wireless channel; Wireless communication |