TY - GEN
T1 - Resource allocation in Co-existing optical wireless hetnets
AU - Alsulami, Osama Zwaid
AU - Saeed, Sarah O.M.
AU - Mohamed, Sanaa Hamid
AU - El-Gorashi, T. E.H.
AU - Alresheedi, Mohammed T.
AU - Elmirghani, Jaafar M.H.
N1 - Funding Information:
The authors would like to acknowledge funding from the Engineering and Physical Sciences Research Council (EPSRC) INTERNET (EP/H040536/1), STAR (EP/K016873/1) and TOWS (EP/S016570/1) projects. The authors extend their appreciation to the deanship of Scientific Research under the International Scientific Partnership Program ISPP at King Saud University, Kingdom of Saudi Arabia for funding this research work through ISPP#0093. OZA would like to thank Umm Al-Qura University in the Kingdom of Saudi Arabia for funding his PhD scholarship, SOMS would like to thank the University of Leeds and the Higher Education Ministry in Sudan for funding her PhD scholarship. SHM would like to thank EPSRC for providing her Doctoral Training Award scholarship. All data are provided in full in the results section of this paper.
Publisher Copyright:
© 2020 IEEE.
PY - 2020/7
Y1 - 2020/7
N2 - In multi-user optical wireless communication (OWC) systems interference between users and cells can significantly affect the quality of OWC links. Thus, in this paper, a mixed-integer linear programming (MILP) model is developed to establish the optimum resource allocation in wavelength division multiple access (WDMA) optical wireless systems. Consideration is given to the optimum allocation of wavelengths and access points (APs) to each user to support multiple users in an environment where Micro, Pico and Atto Cells co-exist for downlink communication. The high directionality of light rays in small cells, such as Pico and Atto cells, can offer a very high signal to noise and interference ratio (SINR) at high data rates. Consideration is given in this work to visible light communication links which utilise four wavelengths per access point (red, green, yellow and blue) for Pico and Atto cells systems, while the Micro cell system uses an infrared (IR) transmitter. Two 10-user scenarios are considered in this work. All users in both scenarios achieve a high optical channel bandwidth beyond 7.8 GHz. In addition, all users in the two scenarios achieve high SINR beyond the threshold (15.6 dB) needed for 10-9 on off keying (OOK) bit error rate at a data rate of 7.1 Gbps.
AB - In multi-user optical wireless communication (OWC) systems interference between users and cells can significantly affect the quality of OWC links. Thus, in this paper, a mixed-integer linear programming (MILP) model is developed to establish the optimum resource allocation in wavelength division multiple access (WDMA) optical wireless systems. Consideration is given to the optimum allocation of wavelengths and access points (APs) to each user to support multiple users in an environment where Micro, Pico and Atto Cells co-exist for downlink communication. The high directionality of light rays in small cells, such as Pico and Atto cells, can offer a very high signal to noise and interference ratio (SINR) at high data rates. Consideration is given in this work to visible light communication links which utilise four wavelengths per access point (red, green, yellow and blue) for Pico and Atto cells systems, while the Micro cell system uses an infrared (IR) transmitter. Two 10-user scenarios are considered in this work. All users in both scenarios achieve a high optical channel bandwidth beyond 7.8 GHz. In addition, all users in the two scenarios achieve high SINR beyond the threshold (15.6 dB) needed for 10-9 on off keying (OOK) bit error rate at a data rate of 7.1 Gbps.
KW - ADR
KW - Atto cell
KW - Data rate
KW - IRC
KW - Micro cell
KW - Multi-users
KW - Pico cell
KW - SINR
KW - VLC
UR - http://www.scopus.com/inward/record.url?scp=85092497142&partnerID=8YFLogxK
UR - https://icton2020.fbk.eu/home
U2 - 10.1109/ICTON51198.2020.9203051
DO - 10.1109/ICTON51198.2020.9203051
M3 - Conference contribution
AN - SCOPUS:85092497142
SN - 9781728184241
T3 - International Conference on Transparent Optical Networks
SP - 1
EP - 7
BT - 2020 22nd International Conference on Transparent Optical Networks, ICTON 2020
A2 - Prudenzano, Francesco
A2 - Cojocaru, Crina
A2 - Urban, Patryk
A2 - Marciniak, Marian
PB - IEEE, Institute of Electrical and Electronics Engineers
CY - United States
T2 - 22nd International Conference on Transparent Optical Networks, ICTON 2020
Y2 - 19 July 2020 through 23 July 2020
ER -