Alan Lee

Demonstration of High-speed Indoor Optical Wireless Communications using Few-mode Based Uniform Beam Shaping

J Li, C Lim, A Nirmalathas, N O'Keefe, KL Lee

Conference Proceedings  |  2020  |  25th Opto-Electronics and Communications Conference, OECC 2020

A high-speed indoor optical wireless communications link using few-mode based uniform beam shaping is experimentally demonstrated...

Optical Wireless Communications Adopting Delay-Tolerant Repetition-Coding With Orthogonal-Filters and On-Demand Equalization

Tingting Song, Ampalavanapillai Nirmalathas, Christina Lim, Elaine Wong, Ka-Lun Lee, Kamal Alameh, Ke Wang

Journal article  |  2020  |  Journal of Lightwave Technology

Transmitter diversity schemes, such as repetition coding (RC), can tackle the optical channel blockage issue in high-speed line-of..

Approaches to improve performance of 60 GHz radio-0verFiber fronthaul links

C Lim, Y Tian, A Nirmalathas, KL Lee

Conference Proceedings  |  2020  |  Proceedings Conference on Lasers and Electro-Optics

In this paper, we review the work we have done to improve the performance of users located at the cell boundary of a 60 GHz radio-..

Approaches to Improve Performance of 60 GHz Radio-0ver-Fiber Fronthaul Links

Christina Lim, Yu Tian, Ampalanavapillai Nirmalathas, Ka-Lun Lee

Conference Proceedings  |  2020  |  2020 CONFERENCE ON LASERS AND ELECTRO-OPTICS (CLEO)

In this paper, we review the work we have done to improve the performance of users located at the cell boundary of a 60 GHz radio-..

Advanced techniques for 60 GHz fronthaul links

C Lim, Y Tian, A Nirmalathas, KL Lee

Conference Proceedings  |  2019  |  Asia Communications and Photonics Conference, ACP

In this paper, we review our recent work in 60 GHz radio-over-fiber (RoF) fronthaul links. We investigated coordinated-multipoint ..

Performance Analysis of Repetition-Coding and Space-Time-Block-Coding as Transmitter Diversity Schemes for Indoor Optical Wireless Communications

Tingting Song, Ampalavanapillai Nirmalathas, Christina Lim, Elaine Wong, Ka-Lun Lee, Yang Hong, Kamal Alameh, Ke Wang

Journal article  |  2019  |  Journal of Lightwave Technology

The benefits of 2 × 1 multiple-inputs-single-output scheme for transmitter diversity in the infrared indoor optical wireless commu..

Evolution of Radio-Over-Fiber Technology

Christina Lim, Yu Tian, Chathurika Ranaweera, Thas Ampalavanapillai Nirmalathas, Elaine Wong, Ka-Lun Lee

Journal article  |  2019  |  JOURNAL OF LIGHTWAVE TECHNOLOGY

Radio-over-fiber technology provides a simpler pathway for the distribution of wireless signals in broadband wireless networks via..

Advanced techniques for 60 GHz fronthaul links

C Lim, Y Tian, A Nirmalathas, KL Lee

Conference Proceedings  |  2019  |  Optics InfoBase Conference Papers

Multi-cell coordination for 60 GHz RoF fronthaul enabled by a non-orthogonal multiple access scheme without successive interference cancellation

Yu Tian, Christina Lim, Ampalavanapillai Nirmalathas, Ka-Lun Lee

Journal article  |  2018  |  OPTICS LETTERS

We propose and experimentally demonstrate a non-orthogonal multiple access (NOMA) enabled 60 GHz radio-over-fiber (RoF) fronthaul ..

On the Performance of Probabilistically-shaped CAP over Optical Wireless Communications

Y Hong, T Song, Y Shao, LK Chen, C Lim, KL Lee, A Nirmalathas, E Wong

Conference Proceedings  |  2018

© 2018 IEEE. We propose and experimentally demonstrate the first probabilistically-shaped CAP (PS-CAP) for OWC. For a 12.5-Gbit/s ..