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This paper studies the resilience of an AWGR and server based PON DCN architecture against link failure scenarios and proposes a modified design for improved resilience. A MILP model is developed to evaluate the performance of the modified…

Networking and Internet Architecture · Computer Science 2020-04-13 Randa A. Thabit , Taisir E. H. El-Gorashi , Jaafar M. H. Elmirghani

With the rapid growth in the telecommunications industry moving towards 5G and beyond (5GB) and the emergence of data-hungry and time-sensitive applications, Mobile Network Operators (MNOs) are faced with a considerable challenge to keep up…

Networking and Internet Architecture · Computer Science 2022-05-05 Abdulhalim Fayad , Manish Jha , Tibor Cinkler , Jacek Rak

Optical wireless communication (OWC) systems have been the subject of attention as a promising wireless communication technology that can offer high data rates and support multiple users simultaneously. In this paper, the impact of room…

The rapid evolution of communication technologies such as 5G and beyond, rely on optical networks to support the challenging and ambitious requirements that include both capacity and reliability. This chapter begins by giving an overview of…

Networking and Internet Architecture · Computer Science 2023-02-16 Carmen Mas-Machuca , Lena Wosinska , Marco Ruffini , Jiajia Chen

In this paper, a cooperative two-hop communication scheme, together with opportunistic relaying (OR), is applied within a mobile wireless body area network (WBAN). Its effectiveness in interference mitigation is investigated in a scenario…

Networking and Internet Architecture · Computer Science 2012-12-20 Jie Dong , David Smith

In this paper, the energy efficiency of edge computing platforms for IoT networks connected to a passive optical network (PON) is investigated. We have developed a mixed integer linear programming (MILP) optimization model, which optimizes…

Networking and Internet Architecture · Computer Science 2020-04-21 Zaineb T. Al-Azez , Ahmed Q. Lawey , Taisir E. H. El-Gorashi , Jaafar M. H. Elmirghani

The use of Passive Optical Networks (PONs) in modern and future data centers can provide energy efficiency, high capacity, low cost, scalability, and elasticity. This paper introduces a passive optical network design with 2-tier cascaded…

Networking and Internet Architecture · Computer Science 2021-11-03 Mohammed Alharthi , Sanaa H. Mohamed , Barzan Yosuf , Taisir E. H. El-Gorashi , Jaafar M. H. Elmirghani

The emergence of optical intelligent reflecting surface (OIRS) technologies marks a milestone in optical wireless communication (OWC) systems, enabling enhanced control over light propagation in indoor environments. This capability allows…

Signal Processing · Electrical Eng. & Systems 2025-01-08 Jalal Jalali , Hina Tabassum , Jeroen Famaey , Walid Saad , Murat Uysal

Large-scale distributed antenna systems with many access points (APs) that serve the users by coherent joint transmission is being considered for 5G-and-beyond networks. The technology is called Cell-free Massive MIMO and can provide a more…

Information Theory · Computer Science 2020-06-30 Trinh Van Chien , Emil Björnson , Erik G. Larsson

Light Fidelity (Li-Fi) is a networked version of optical wireless communication (OWC), which is a strong candidate to fulfill the unprecedented increase in user-traffic expected in the near future. In OWC, a high number of optical access…

Signal Processing · Electrical Eng. & Systems 2021-11-30 Ahmad Adnan Qidan , Taisir El-Gorashi1 , Jaafar M. H. Elmirghani

This paper proposes a passive optical backplane as a new network topology for composable computing infrastructures. The topology provides a high capacity, low-latency and flexible fabric that interconnects disaggregated resource components.…

Networking and Internet Architecture · Computer Science 2020-04-13 Opeyemi O. Ajibola , Taisir E. H. El-Gorashi , Jaafar M. H. Elmirghani

The proliferation of overlapping, always-on IEEE 802.11 Access Points (APs) in urban areas can cause spectrum sharing conflicts, inefficient bandwidth usage and power waste. Cooperation among APs could address these problems (i) by allowing…

Networking and Internet Architecture · Computer Science 2011-05-17 Claudio Rossi , Claudio Casetti , Carla-Fabiana Chiasserini

In this work, we propose a reliable, power efficient and high throughput routing protocol for Wireless Body Area Networks (WBANs). We use multi-hop topology to achieve minimum energy consumption and longer network lifetime. We propose a…

Networking and Internet Architecture · Computer Science 2016-11-15 Q. Nadeem , N. Javaid , S. N. Mohammad , M. Y. Khan , S. Sarfraz , M. Gull

The exploitation of already deployed wireless local area networks (WLAN)s (e.g., WiFi access points (AP)s) has attracted considerable attention, as an efficient and practical method to improve the performance of beyond 4G wireless networks.…

Networking and Internet Architecture · Computer Science 2018-06-12 Petros S. Bithas , Athanasios S. Lioumpas

The provision of both wireless and wired services in the optical access domain will be an important function for future passive optical networks (PON). With the emergence of 5th generation (5G) mobile communications, a move toward a dense…

Information Theory · Computer Science 2017-03-07 Colm Browning , Arman Farhang , Arsalan Saljoghei , Nicola Marchetti , Vidak Vujicic , Linda Doyle , Liam Barry

Passive optical network (PON) technology offers an attractive cost-efficient alternative to support 5G and Beyond 5G mobile network fronthauling (MFH). However, MFH for such networks is challenging given its high bandwidth and strict…

Networking and Internet Architecture · Computer Science 2021-10-19 Oscar J. Ciceri , Carlos A. Astudillo , Gustavo B. Figueiredo , Zuqing Zhu , Nelson L. S. da Fonseca

Wireless networks in a room are strongly affected by interferences. To alleviate these effects and enhance the performance of the wireless networks, some optimization was carried out. In this work, an analytical study was introduced to…

Networking and Internet Architecture · Computer Science 2025-03-07 Farah Natiq , Qutaiba I. Ali

Vertical Cavity Surface Emitting Lasers (VCSELs) have gained popularity in Optical Wireless Communication (OWC) due to their high modulation bandwidth, narrow spectral width, and directional beam, offering improved spectral efficiency and…

Signal Processing · Electrical Eng. & Systems 2025-12-11 Walter Zibusiso Ncube , Ahmad Adnan Qidan , Taisir El-Gorashi , Jaafar M. H. Elmirghani

To cope with the explosive bandwidth demand, significant progress has been made in the ITU-T standardization sector to define a higher-speed passive optical network (PON) with a 50Gb/s line rate. Recently, 50G PON becomes mature gradually,…

Networking and Internet Architecture · Computer Science 2023-08-03 Ji Zhou , Zhenping Xing , Haide Wang , Kuo Zhang , Xi Chen , Qiguang Feng , Keshuang Zheng , Yijia Zhao , Zhen Dong , Tao Gui , Zhicheng Ye , Liangchuan Li

Multiple-input multiple-output (MIMO) techniques have recently demonstrated significant potentials in visible light communications (VLC), as they can overcome the modulation bandwidth limitation and provide substantial improvement in terms…

Information Theory · Computer Science 2017-02-07 Hanaa Marshoud , Paschalis C. Sofotasios , Sami Muhaidat , Bayan S. Sharif , George K. Karagiannidis