Author
Elamassie, Mohammed, Karbalayghareh, Mehdi, Miramirkhani, Farshad, Uysal, Murat
Publication Date
2019-04
Publication Place
-
IEEE
Subject
Underwater visible light communication, Orthogonal frequency division multiplexing, Link adaptation algorithm, Bit loading
Type
Document
Language
English
Digital
Yes
Manuscript
No
Library
Özyeğin University
Library Asset ID
978-172811904-5
Record ID
46564f6e-6d7e-40d1-8073-df20256913e0
Library Location
Electrical & Electronics Engineering
Date
2019-04
Notes
TÜBİTAK
Sample Text
Visible light communication (VLC) has been introduced as a complementary technology to acoustic communications for underwater applications. Underwater VLC can achieve much higher data rates sufficiently high for real-time image and video transmission. Such high data rates over underwater channels with frequency-selectivity necessitate the use of efficient multi-carrier techniques such as orthogonal frequency division multiplexing. In this paper, we consider an adaptive DC-biased optical OFDM (DCO-OFDM) underwater VLC system. The design of adaptive algorithm is formulated to maximize the throughput under error rate performance constraints. The receiver first calculates the signal-to-noise ratio (SNR) per each subcarrier. Then, based on SNR information, it determines which subcarrier should be loaded first and selects the maximum constellation size for each subcarrier while satisfying a predefined targeted bit error rate (BER). Our simulation results demonstrated that significant improvements in throughput can be obtained through link adaptation.
DOI
10.1109/SIU.2019.8806323
