Abstract
High-speed trains (HSTs) are very importance in public transportation. However, current radio frequency (RF) wireless access technologies cannot satisfy the demands of stable and high-rate transmissions for HSTs. Free space optical (FSO) communication is an alternative way to promote data rate. In this paper, we apply single-input multi-output (SIMO) and multi-input multi-output (MIMO) technologies to the FSO communication for HSTs to enhance system performance. Besides, we investigate the laser diode rotating strategy for the MIMO FSO communication system to further improve the BER performance. Analytical and simulation results are provided to verify the enhancement of the MIMO FSO communication system
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