Abstract

The coherence distance (CD) is the spatial distance over which the channel does not change appreciably. It is a common and important wireless communication channel parameter. While adoption of this parameter in the realm of radio-frequency is well established, it is a less familiar concept in the realm of optical wireless communication (OWC), where it can be beneficial as a measure for spatial optical channel changes. In this Letter, the average CD is proposed as a metric to characterize indoor OWC channels and a method for its evaluation is outlined.

© 2018 Optical Society of America

High-speed indoor optical wireless communication system employing a silicon integrated photonic circuit

Ke Wang, Ampalavanapillai Nirmalathas, Christina Lim, Elaine Wong, Kamal Alameh, Hongtao Li, and Efstratios Skafidas
Opt. Lett. 43(13) 3132-3135 (2018)

Experimental demonstration of an indoor optical wireless communication system with a waveform index modulated uplink

Ke Wang and Sithamparanathan Kandeepan
Opt. Lett. 47(13) 3187-3190 (2022)

Time-slot coding scheme for multiple access in indoor optical wireless communications

Tian Liang, Ke Wang, Christina Lim, Elaine Wong, Tingting Song, and Ampalavanapillai Nirmalathas
Opt. Lett. 41(22) 5166-5169 (2016)

Indoor optical wireless communication system with filters-enhanced generalized spatial modulation and carrierless amplitude and phase (CAP) modulation

Ke Wang
Opt. Lett. 45(18) 4980-4983 (2020)

Recurrent neural network (RNN) for delay-tolerant repetition-coded (RC) indoor optical wireless communication systems

Jiayuan He, Jeonghun Lee, Tingting Song, Hongtao Li, Sithamparanathan Kandeepan, and Ke Wang
Opt. Lett. 44(15) 3745-3748 (2019)