TY - GEN
T1 - Design of MAC-layer Protocols for Distributed NOMA-based VLC Networks
AU - Rallis, Konstantinos G.
AU - Papanikolaou, Vasilis K.
AU - Diamantoulakis, Panagiotis D.
AU - Dowhuszko, Alexis A.
AU - Hamalainen, Jyri
AU - Karagiannidis, George K.
N1 - Funding Information:
ACKNOWLEDGMENT This paper is based upon work from COST Action CA19111 (European Network on Future Generation Optical Wireless Communication Technologies, NEWFOCUS), supported by COST (European Cooperation in Science and Technology).
Publisher Copyright:
© 2022 IEEE.
PY - 2022
Y1 - 2022
N2 - In this paper, a visible light communication (VLC) cellular network that utilizes non-orthogonal multiple access (NOMA) is investigated. To deal with the high inter-cell interference attributed to the high-density of VLC network nodes, a medium access control (MAC) scheduler is designed based on a distributed NOMA approach that aims at increasing the performance of cell-edge users, while securing the high data rate requirements of cell-center users in the VLC network. To this end, two practical protocols are proposed to guarantee the increased spectral efficiency and interference mitigation through distributed NOMA. In each protocol, the decoding strategy and power allocation of the users is investigated through a low complexity algorithm that ensures user fairness in the network. The presented analysis is validated through simulations, where the proposed schemes notably outperform the benchmark scheme in which the cell-edge user does not perform successive interference cancellation. Finally, the results showcase valuable insights, mainly on the fact that the decoding strategy in such networks is not as obvious as in conventional downlink NOMA.
AB - In this paper, a visible light communication (VLC) cellular network that utilizes non-orthogonal multiple access (NOMA) is investigated. To deal with the high inter-cell interference attributed to the high-density of VLC network nodes, a medium access control (MAC) scheduler is designed based on a distributed NOMA approach that aims at increasing the performance of cell-edge users, while securing the high data rate requirements of cell-center users in the VLC network. To this end, two practical protocols are proposed to guarantee the increased spectral efficiency and interference mitigation through distributed NOMA. In each protocol, the decoding strategy and power allocation of the users is investigated through a low complexity algorithm that ensures user fairness in the network. The presented analysis is validated through simulations, where the proposed schemes notably outperform the benchmark scheme in which the cell-edge user does not perform successive interference cancellation. Finally, the results showcase valuable insights, mainly on the fact that the decoding strategy in such networks is not as obvious as in conventional downlink NOMA.
KW - decoding strategy
KW - distributed NOMA
KW - interference mitigation
KW - Non-Orthogonal Multiple Access
KW - successive interference cancellation
KW - Visible Light Communication
UR - http://www.scopus.com/inward/record.url?scp=85140452985&partnerID=8YFLogxK
U2 - 10.1109/CSNDSP54353.2022.9907969
DO - 10.1109/CSNDSP54353.2022.9907969
M3 - Conference article in proceedings
AN - SCOPUS:85140452985
T3 - 2022 13th International Symposium on Communication Systems, Networks and Digital Signal Processing, CSNDSP 2022
SP - 32
EP - 37
BT - 2022 13th International Symposium on Communication Systems, Networks and Digital Signal Processing, CSNDSP 2022
PB - IEEE
T2 - International Symposium on Communication Systems, Networks and Digital Signal Processing
Y2 - 20 July 2022 through 22 July 2022
ER -