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The fifth-generation of mobile radio technologies is expected to be agile, flexible, and scalable while provisioning ultra-reliable and low-latency communication (uRLLC), enhanced mobile broadband (eMBB), and massive machine type…

网络与互联网体系结构 · 计算机科学 2022-05-10 Sourav Mondal , Marco Ruffini

The pinching-antenna systems (PASS), which dynamically activate and relocate the pinching-antennas (PAs) along the dielectric waveguide, offer unprecedented potential for integrated positioning and communication. The multi-waveguide-based…

信号处理 · 电气工程与系统科学 2026-05-27 Yaoyu Zhang , Xin Sun , Jun Wang , Tianwei Hou , Anna Li , Yuanwei Liu , Arumugam Nallanathan

Employing massively distributed antennas brings radio access points (RAPs) closer to users, thus enables aggressive spectrum reuse that can bridge gaps between the scarce spectrum resource and extremely high connection densities in future…

信号处理 · 电气工程与系统科学 2020-08-19 Lisu Yu , Jingxian Wu , Andong Zhou , Erik G. Larsson , Pingzhi Fan

Data centers based on Passive Optical Networks (PONs) can offer scalability, low cost and high energy-efficiency. Application in data centers can use Virtual Machines (VMs) to provide efficient utilization of the physical resources. This…

网络与互联网体系结构 · 计算机科学 2022-03-25 Mohammed Alharthi , Sanaa H. Mohamed , Barzan Yosuf , Taisir E. H. El-Gorashi , Jaafar M. H. Elmirghani

Communications based solely on radio frequency (RF) networks cannot provide adequate quality of service for the rapidly growing demands of wireless connectivity. Since devices operating in the optical spectrum do not interfere with those…

网络与互联网体系结构 · 计算机科学 2018-10-08 Mostafa Zaman Chowdhury , Md. Tanvir Hossan , Moh. Khalid Hasan , Yeong Min Jang

This paper optimizes the scheduling and routing of the co-flows of MapReduce shuffling phase in state-of-the-art and proposed Passive Optical Networking (PON)-based Data Centre Network (DCN) architectures. A time-slotted Mixed Integer…

网络与互联网体系结构 · 计算机科学 2020-08-11 Sanaa Hamid Mohamed , Ali Hammadi , Taisir E. H. El-Gorashi , Jaafar Mohamed Hashim Elmirghani

New generation passive optical network aims at providing more than 100 Gb/s capacity. Thanks to recent progress enabling a variety of optical transceivers up to 40 Gb/s, many evolution possibilities to 200G PONs (passive optical network)…

网络与互联网体系结构 · 计算机科学 2013-04-03 Mamadou Diallo Diouf , Ahmed D. Kora , Octave Ringar , C. Aupetit-Berthelemot

Passive Optical Data Centre Networks have been developed due to the performance limitations in current data centres to provide high performance within data centre networks. An AWGR based passive optical network data centre architecture is…

网络与互联网体系结构 · 计算机科学 2019-04-10 Azza E. A. Eltraify , Mohamed O. I. Musa , Jaafar M. H. Elmirghani

Driven by the exponential growth in data traffic and the limitations of Radio Frequency (RF) networks, Optical Wireless Communication (OWC) has emerged as a promising solution for high data rate communication. However, the inherently…

信号处理 · 电气工程与系统科学 2025-05-06 Walter Zibusiso Ncube , Ahmad Adnan Qidan , Taisir El-Gorashi , Jaafar M. H. Elmirghani

A key feature in the design of any MAC protocol is the throughput it can provide. In wireless networks, the channel of a user is not fixed but varies randomly. Thus, in order to maximize the throughput of the MAC protocol at any given time,…

信息论 · 计算机科学 2009-09-17 Syed T. Qaseem , Tareq Y. Al-Naffouri

Free space optical (FSO) communication refers to the information transmission technology based on the propagation of optical signals in space. FSO communication requires that the transmitter and receiver directly see each other.…

网络与互联网体系结构 · 计算机科学 2023-01-20 Dieu Linh Truong , Xuan Vuong Dang , The Ngoc Dang

Wireless interconnection has emerged as an energy efficient solution to the challenges of multi-hop communication over the wireline paths in conventional Networks-on-Chips (NoCs). However, to ensure the full benefits of this novel…

网络与互联网体系结构 · 计算机科学 2018-09-24 Naseef Mansoor , Abhishek Vashist , M Meraj Ahmed , Md Shahriar Shamim , Syed Ashraf Mamun , Amlan Ganguly

Fog computing plays a crucial role in satisfying the requirements of delay-sensitive applications such as connected vehicles, smart grids, and actuator networks by moving data processing close to end users. Passive optical networks (PONs)…

网络与互联网体系结构 · 计算机科学 2020-05-05 Abdullah M. Alqahtani , Sanaa H. Mohamed , Taisir E. H. El-Gorashi , Jaafar M. H. Elmirghani

Current Gigabit-class passive optical networks (PONs) evolve into next-generation PONs, whereby high-speed 10+ Gb/s time division multiplexing (TDM) and long-reach wavelength-broadcasting/routing wavelength division multiplexing (WDM) PONs…

信息论 · 计算机科学 2013-11-06 Frank Aurzada , Martin Lévesque , Martin Maier , Martin Reisslein

In this paper, we consider cell-free communication systems with several access points (APs) serving terrestrial users (UEs) simultaneously. To enhance the uplink multi-user multiple-input multiple-output communications, we adopt a…

信息论 · 计算机科学 2024-12-05 Xuesong Pan , Zhong Zheng , Xueqing Huang , Zesong Fei

The continually growing demands for traffic as a result of advanced technologies in 5G and 6G systems offering services with intensive demands such as IoT and virtual reality applications has resulted in significant performance expectations…

网络与互联网体系结构 · 计算机科学 2021-12-01 Abrar S. Alhazmi , Sanaa H. Mohamed and , T. E. H. El-Gorashi , Jaafar M. H. Elmirghani

In this work, we analyze the downlink performance of a cell-free massive multiple-input-multiple-output system with finite capacity fronthaul links between the centralized baseband units and the access point (APs). Conditioned on the user…

信息论 · 计算机科学 2022-02-23 Priyabrata Parida , Harpreet S. Dhillon

Optical wireless communication (OWC) is a promising technology for supporting data intensive services in indoor environments due to its large unregulated spectrum, high spatial reuse, and potential for multigigabit data rates. In…

信号处理 · 电气工程与系统科学 2026-04-27 Walter Zibusiso Ncube , Ahmad Adnan Qidan , Taisir El-Gorashi , Jaafar M. H. Elmirghani

The abundant optical spectrum is a promising part of the electromagnetic spectrum for 6G communication systems. The visible light spectrum which is a part of the optical spectrum, can be used to provide communication and illumination…

信号处理 · 电气工程与系统科学 2020-08-06 Osama Zwaid Alsulami , T. E. H. El-Gorashi , Jaafar M. H. Elmirghani

We propose an all-optical networking solution for a wide area network (WAN) based on the notion of multipoint-to-multipoint lightpaths that, for short, we call "multipaths". A multipath concentrates the traffic of a group of source nodes on…

网络与互联网体系结构 · 计算机科学 2011-10-07 Davide Cuda , Raluca-Maria Indre , Esther Le Rouzic , James Roberts