V
Vijitha Herath
Researcher at University of Peradeniya
Publications - 39
Citations - 202
Vijitha Herath is an academic researcher from University of Peradeniya. The author has contributed to research in topics: Computer science & Optical communication. The author has an hindex of 5, co-authored 32 publications receiving 146 citations. Previous affiliations of Vijitha Herath include University of Paderborn.
Papers
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Journal ArticleDOI
Coherent optical communication: towards realtime systems at 40 Gbit/s and beyond.
TL;DR: The results of a realtime QPSK transmission system with a 3x3 coupler in the receiver are presented, with the achieved BER at a data rate of 1.4 Gbit/s is well below the FEC threshold.
Journal ArticleDOI
Validation of multispectral imaging for the detection of selected adulterants in turmeric samples
Wele Gedara Chaminda Bandara,Gode Withanage Kasun Prabhath,Dissanayake Walawwe Sahan Chinthana Bandara Dissanayake,Vijitha Herath,G. M. R. I. Godaliyadda,M. P. B. Ekanayake,Dhanushika Demini,Terrence Madhujith +7 more
TL;DR: In this paper, a multispectral imaging system was developed utilizing nine spectral bands with peak wavelengths from 405nm to 950nm for detecting the percentage of the common adulterant; tartrazine colored rice flour found in turmeric powder.
Proceedings ArticleDOI
Towards real-time implementation of coherent optical communication
Timo Pfau,R. Peveling,Vijitha Herath,S. Hoffmann,C. Wordehoff,O. Adamczyk,Mario Porrmann,Reinhold Noe +7 more
TL;DR: The hardware architecture of coherent optical receivers supporting Gt40 Gb/s data rates and extract constraints for compatible signal processing algorithms are outlined and a chipset layout for a 40 GB/s digital coherent polarization-multiplexed QPSK receiver is presented.
Proceedings ArticleDOI
Relay-assisted optical wireless communications in turbid water
TL;DR: This work proposes a dual-hop UOWC system in which the transmitter-receiver link is assisted by several amplify-and-forward relay nodes, and investigates the impact of key system and particle distribution parameters such as the transmit power, the number of relays, and the spatial position of the attenuation spread on the performance.
Proceedings ArticleDOI
Impact of Receiver Orientation on Full-Duplex Relay Aided NOMA Underwater Optical Wireless Systems.
TL;DR: This paper considers a non-orthogonal multiple access (NOMA) underwater optical wireless communication system in which a full-duplex decode-and-forward relay is used to assist the far user with weak channel conditions and derives the exact outage probability valid for log-normal weak turbulence conditions.