no code implementations • 17 Jul 2023 • Khulood D. Alazwary, Ahmad Adnan Qidan, T. E. H. El-Gorashi, Jaafar M. H. Elmirghani
In RS, the transmitted power is allocated to different messages, common and private messages, serving multiple users simultaneously, where each user can decode the desired message following a certain procedure.
no code implementations • 6 Apr 2023 • Khulood D. Alazwary, Ahmad Adnan Qidan, T. E. H. El-Gorashi, Jaafar M. H. Elmirghani
This paper evaluates the performance of rate splitting (RS), a robust interference management scheme, in an optical wireless communication (OWC) network that uses infrared lasers referred to as vertical-cavity surface-emitting lasers (VCSELs) as optical transmitters.
no code implementations • 29 Oct 2021 • Abrar S. Alhazmi, Sanaa H. Mohamed, Osama Z. Alsulami, T. E. H. El-Gorashi, Jaafar M. H. Elmirghani
We consider three racks in a data center where each rack contains an Angle Diversity Transmitter (ADT) positioned on the top of the rack to realize the uplink function of a top-of-the-rack (ToR) or a leaf switch.
no code implementations • 5 Aug 2020 • Osama Zwaid Alsulami, T. E. H. El-Gorashi, Jaafar M. H. Elmirghani
In addition, the optimization of resource allocation is considered in this chapter by developing a mixed-integer linear programming (MILP) model that can be used to maximize the signal to noise and interference ratio (SINR) while supporting multiple users.
no code implementations • 5 May 2020 • Mansourah K. Aljohani, Osama Zwaid Alsulami, Khulood D. Alazwary, Mohamed O. I. Musa, T. E. H. El-Gorashi, Mohammed T. Alresheedi, Jaafar M. H. Elmirghani
In this paper, a non-orthogonal multiple access (NOMA) visible light communication (VLC) system is investigated.
no code implementations • 4 May 2020 • Khulood D. Alazwary, Osama Zwaid Alsulami, Sarah O. M. Saeed, Sanaa Hamid Mohamed, T. E. H. El-Gorashi, Mohammed T. Alresheedi, Jaafar M. H. Elmirghani
In this paper, we investigate the impact of user distribution on resource allocation in visible light communication (VLC) systems, using a wavelength division multiple access (WDMA) scheme.
no code implementations • 3 May 2020 • Abrar S. Alhazmi, Osama Zwaid Alsulami, T. E. H. El-Gorashi, Mohammed T. Alresheedi, Jaafar M. H. Elmirghani
In our proposed data centre, we consider three racks, each of which has its own angle diversity transmitter (ADT) that is located on top of the rack.
no code implementations • 30 Apr 2020 • Yu Zeng, Sanaa Hamid Mohamed, T. E. H. El-Gorashi, Jaafar M. H. Elmirghani
In this paper, we investigate optical wireless repeaters as relay terminals between a transmitter and a user in an Infrared Optical Wireless Communication (IROWC) system.