Paper Info
Title
Towards 100 Mb/s Optical Wireless Communications Using a Silicon Photovoltaic Receiver
Abstract
In this paper, a low cost optical wireless communications link with a data rate of 74 Mb/s at a bit-error ratio of 3.3x10 <sup xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink">−3</sup> is demonstrated. The components are all low cost, off-the-shelf parts, including the laser transmitter and silicon solar panel receiver. This performance is achieved by extending the usable bandwidth using analog equalization and digital techniques such as adaptive bit and power loading. Also, the performance of two spectrally efficient modulation schemes, namely direct-current biased optical orthogonal frequency division multiplexing (DCO-OFDM) and pulse amplitude modulation discrete multitone (PAM-DMT) is evaluated and compared. It is shown that DCO-OFDM outperforms PAM-DMT because of efficient bandwidth usage with adaptive bit loading and pre-distortion introduced by adaptive power loading. Furthermore, it is shown that PAM-DMT can avoid complex system designs and still achieve comparable data rates to that of OFDM with higher link reliability.
Year
DOI
Venue
2020
10.1109/GLOBECOM42002.2020.9322495
GLOBECOM 2020 - 2020 IEEE Global Communications Conference
Keywords
DocType
ISSN
Free-space Optical Communication,Optical Wireless Communication,OFDM,PAM-DMT,Photovoltaics,LiFi
Conference
1930-529X
ISBN
Citations 
PageRank 
978-1-7281-8299-5
0
0.34
References 
Authors
0
6
Name
Order
Citations
PageRank
Sovan Das100.34
Fakidis, John242.00
Adrian Sparks300.68
E. Poves4413.87
Stefan Videv501.69
Harald Haas65181374.79