期刊
IEEE WIRELESS COMMUNICATIONS LETTERS
卷 11, 期 1, 页码 178-182出版社
IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC
DOI: 10.1109/LWC.2021.3123568
关键词
Interference; Unmanned aerial vehicles; Bit error rate; Scattering; Signal to noise ratio; Nonlinear optics; Uplink; Optical wireless communications; ultraviolet communications; NLOS communication; unmanned aerial vehicles; bit error rate performance; interference
UV communication links are attractive for UAV networks due to their strong scattering and ability to establish NLOS outdoor connectivity. This study investigates the performance of the uplink airborne UV in the presence of interference and validates the findings through numerical results.
Due to the strong scattering, ultraviolet (UV) communication links enable non-line-of-sight (NLOS) outdoor connectivity and relax the pointing, acquisition, and tracking requirements encountered in infrared links. This feature makes the UV communications attractive, in particular, for unmanned aerial vehicle (UAV) networks where link alignment is hard to realize. In this letter, we study the performance of the uplink of a ground sensor network where a UAV periodically visits the area to receive the data from serial sensor nodes. The transmission from the closest sensor to the flying UAV is the desired signal while the received signals from other nodes are treated as interference. We derive the bit error rate for the uplink airborne UV in the presence of interference. Numerical results are provided to validate our theoretical analysis and investigate the effect of interferers on the system performance.
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