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To cater to the demands of our rapidly growing Internet traffic, backbone networks need high-degree reconfigurable optical add/drop multiplexers (ROADMs) to simultaneously support multiple pairs of bi-directional fibers on each link.…

Networking and Internet Architecture · Computer Science 2023-02-14 Jiemin Lin , Zeshan Chang , Liangjia Zong , Sanjay K. Bose , Tianhai Chang , Gangxiang Shen

Real-time communications (RTC) is a core technology for emerging applications in 6G, such as cloud gaming, teleoperation, and extended reality (XR), which require consistently low latency and high bitrates. Existing RTC solutions…

Networking and Internet Architecture · Computer Science 2026-04-27 Yufan Zhuang , Zili Meng , Zehong Lin , Jun Zhang

The sensitivity of the optical wireless communication (OWC) can be effectively improved by employing the highly sensitive single-photon avalanche diode (SPAD) arrays. However, the nonlinear distortion introduced by the dead time strongly…

Information Theory · Computer Science 2022-10-26 Shenjie Huang , Cheng Chen , Mohammad Dehghani Soltani , Robert Henderson , Harald Haas , Majid Safari

In this paper, we propose the use of two Passive Optical Network (PON)-based network architectures to connect free-space Optical Wireless Communication (OWC) Access Points (APs) within a room with multiple users. We optimize through a Mixed…

Networking and Internet Architecture · Computer Science 2021-02-12 Sanaa Hamid Mohamed , Osama Zwaid Alsulami , Taisir E. H. El-Gorashi , Mohammed T. Alresheedi , Jaafar M. H. Elmirghani

This paper studies optimal resource allocation in the wireless-powered communication network (WPCN), where one hybrid access-point (H-AP) operating in full-duplex (FD) broadcasts wireless energy to a set of distributed users in the downlink…

Information Theory · Computer Science 2014-09-16 Hyungsik Ju , Rui Zhang

Due to the requirement of hosting tens of thousands of hosts in today's data centers, data center networks strive for scalability and high throughput on the one hand. On the other hand, the cost for networking hardware should be minimized.…

Networking and Internet Architecture · Computer Science 2016-10-12 Frank Dürr

The growing trends of data centers over last decades including social networking, cloud-based applications and storage technologies enabled many advances to take place in the networking area. Recent changes imply continuous demand for…

Networking and Internet Architecture · Computer Science 2016-10-19 Fadoua Hassen , Lotfi Mhamdi

The rapid expansion of oceanic applications such as underwater surveillance and mineral exploration is driving the need for real-time wireless backhaul of massive observational data. Such demands are challenging to meet using the narrowband…

Signal Processing · Electrical Eng. & Systems 2026-05-19 Jiayue Liu , Tianqi Mao , Leyu Cao , Weijie Liu , Dezhi Zheng , Julian Cheng , Zhaocheng Wang

In this paper, we propose an energy efficient passive optical network (PON) architecture for backhaul connectivity in indoor visible light communication (VLC) systems. The proposed network is used to support a fog computing architecture…

Networking and Internet Architecture · Computer Science 2023-04-11 Wafaa B. M. Fadlelmula , Sanaa H. Mohamed , Taisir E. H. El-Gorashi , Jaafar M. H. Elmirghani

Data Centers (DCs) are required to be scalable to large data sets so as to accommodate ever increasing demands of resource-limited embedded and mobile devices. Thanks to the availability of recent high data rate millimeter-wave frequency…

Networking and Internet Architecture · Computer Science 2015-06-12 Ahmad Khonsari , Seyed Pooya Shariatpanahi , Abolfazl Diyanat , Hossein Shafiei

Optical wireless Communication (OWC) is a strong candidate in the next generation (6G) of cellular networks. In this paper, a laser-based optical wireless network is deployed in an indoor environment using Vertical Cavity Surface Emitting…

Signal Processing · Electrical Eng. & Systems 2022-03-22 Walter Zibusiso Ncube , Ahmad Adnan Qidan , Taisir El-Gorashi , Jaafar M. H. Elmirghani

Optical wireless communication (OWC) systems are a promising communication technology that can provide high data rates into the tens of Tb/s and can support multiple users at the same time. This paper investigates the optimum allocation of…

Signal Processing · Electrical Eng. & Systems 2020-01-09 Osama Alsulami , Amal Alahmadi , Sarah Saeed , Sana Hamid Mohamed , Taisir El-Gorashi , Mohammed Alresheedi , Jaafar Elmirghani

In this paper, we consider a wireless powered communication network (WPCN) consisting of a multi-antenna hybrid access point (HAP) that transfers wireless energy to and receives sensing data from a cluster of low-power wireless devices…

Networking and Internet Architecture · Computer Science 2017-07-12 Lina Yuan , Suzhi Bi , Shengli Zhang , Xiaohui Lin , Hui Wang

Responding to the "datacenter tax" and "killer microseconds" problems for datacenter applications, diverse solutions including Smart NIC-based ones have been proposed. Nonetheless, they often suffer from high overhead of communications over…

Hardware Architecture · Computer Science 2022-10-19 Yifan Yuan , Jinghan Huang , Yan Sun , Tianchen Wang , Jacob Nelson , Dan R. K. Ports , Yipeng Wang , Ren Wang , Charlie Tai , Nam Sung Kim

In a wirelessly-powered communication network (WPCN), an energy access point (E-AP) supplies the energy needs of the network nodes through radio frequency wave transmission, and the nodes store their received energy in their batteries for…

Information Theory · Computer Science 2019-05-16 Mohammad Movahednasab , Behrooz Makki , Naeimeh Omidvar , Mohammad Reza Pakravan , Tommy Svensson , Michele Zorzi

Underwater wireless communications can be carried out through acoustic, radio frequency (RF), and optical waves. Compared to its bandwidth limited acoustic and RF counterparts, underwater optical wireless communications (UOWCs) can support…

Networking and Internet Architecture · Computer Science 2018-03-08 Nasir Saeed , Abdulkadir Celik , Tareq Y. Al-Naffouri , Mohamed-Slim Alouini

The ability to provide very high data rates is a significant benefit of optical wireless communication (OWC) systems. In this paper, an optical wireless downlink in a data centre that uses wavelength division multiple access (WDMA) is…

Signal Processing · Electrical Eng. & Systems 2020-02-06 O. Z. Alsulami , S. O. M. Saeed , S. H. Mohamed , T. E. H. El-Gorashi , M. T. Alresheedi , J. M. H. Elmirghani

Wireless Network-on-Chip (WNoC) appears as a promising alternative to conventional interconnect fabrics for chip-scale communications. WNoC takes advantage of an overlaid network composed by a set of millimeter-wave antennas to reduce…

Emerging Technologies · Computer Science 2018-09-05 Xavier Timoneda , Albert Cabellos-Aparicio , Dionysios Manessis , Eduard Alarcón , Sergi Abadal

The newly emerging wireless powered communication networks (WPCNs) have recently drawn significant attention, where radio signals are used to power wireless terminals for information transmission. In this paper, we study a WPCN where one…

Information Theory · Computer Science 2014-04-16 Liang Liu , Rui Zhang , Kee-Chaing Chua

We propose an intelligent proactive content caching scheme to reduce the energy consumption in wireless downlink. We consider an online social network (OSN) setting where new contents are generated over time, and remain \textit{relevant} to…

Networking and Internet Architecture · Computer Science 2017-02-22 Samuel O. Somuyiwa , András György , Deniz Gündüz