TY - GEN
T1 - Resource Allocation in Laser-based Optical Wireless Cellular Networks
AU - Qidan, Ahmad Adnan
AU - Morales-Cespedes, Maximo
AU - El-Gorashi, Taisir
AU - Elmirghani, Jaafar M.H.
N1 - Funding Information:
This work has been supported in part by the Engineering and Physical Sciences Research Council (EPSRC), in part by the INTERNET project under Grant EP/H040536/1, and in part by the STAR project under Grant EP/K016873/1 and in part by the TOWS project under Grant EP/S016570/1. All data are provided in full in the results section of this paper.
Publisher Copyright:
© 2021 IEEE.
PY - 2021
Y1 - 2021
N2 - Optical wireless communication provides data transmission at high speeds which can satisfy the increasing demands for connecting a massive number of devices to the Internet. In this paper, vertical-cavity surface-emitting(VCSEL) lasers are used as transmitters due to their high modulation speed and energy efficiency. However, a high number of VCSEL lasers is required to ensure coverage where each laser source illuminates a confined area. Therefore, multiple users are classified into different sets according to their connectivity. Given this point, a transmission scheme that uses blind interference alignment (BIA) is implemented to manage the interference in the laser-based network. In addition, an optimization problem is formulated to maximize the utility sum rate taking into consideration the classification of the users. To solve this problem, a decentralized algorithm is proposed where the main problem is divided into sub-problems, each can be solved independently avoiding complexity. The results demonstrate the optimality of the decentralized algorithm where a sub-optimal solution is provided. Finally, it is shown that BIA can provide high performance in laser-based networks compared with zero forcing (ZF) transmit precoding scheme.
AB - Optical wireless communication provides data transmission at high speeds which can satisfy the increasing demands for connecting a massive number of devices to the Internet. In this paper, vertical-cavity surface-emitting(VCSEL) lasers are used as transmitters due to their high modulation speed and energy efficiency. However, a high number of VCSEL lasers is required to ensure coverage where each laser source illuminates a confined area. Therefore, multiple users are classified into different sets according to their connectivity. Given this point, a transmission scheme that uses blind interference alignment (BIA) is implemented to manage the interference in the laser-based network. In addition, an optimization problem is formulated to maximize the utility sum rate taking into consideration the classification of the users. To solve this problem, a decentralized algorithm is proposed where the main problem is divided into sub-problems, each can be solved independently avoiding complexity. The results demonstrate the optimality of the decentralized algorithm where a sub-optimal solution is provided. Finally, it is shown that BIA can provide high performance in laser-based networks compared with zero forcing (ZF) transmit precoding scheme.
KW - Optical Wireless networks
KW - resource allocation and interference management
UR - http://www.scopus.com/inward/record.url?scp=85127283362&partnerID=8YFLogxK
UR - https://globecom2021.ieee-globecom.org/
U2 - 10.1109/GLOBECOM46510.2021.9685357
DO - 10.1109/GLOBECOM46510.2021.9685357
M3 - Conference contribution
AN - SCOPUS:85127283362
SN - 9781728181059
T3 - 2021 IEEE Global Communications Conference, GLOBECOM 2021 - Proceedings
SP - 1
EP - 6
BT - Proceedings of the 2021 IEEE Global Communications Conference, GLOBECOM 2021
A2 - Ulukus, Sennur
A2 - Dinis, Rui
A2 - Franco, Santiago Mazuelas
PB - IEEE, Institute of Electrical and Electronics Engineers
CY - United States
T2 - 2021 IEEE Global Communications Conference, GLOBECOM 2021
Y2 - 7 December 2021 through 11 December 2021
ER -
