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We propose and model an optical communication scheme for short distance datacom links based on the distribution of information across a wide comb spectrum. This modulation format, orthogonal delay division multiplexing, allows the…

Optics · Physics 2023-10-27 Andrea Zazzi , Jeremy Witzens

Spectrum conversion can improve the performance of OFDM-based Elastic Optical Networks (EONs) by relaxing the continuity constraint and consequently reducing connection request blocking probability during Routing and Spectrum Assignment…

Information Theory · Computer Science 2016-07-27 Mohammad Hadi , Mohammad Reza Pakravan

Capacity scaling of a large hybrid network with unit node density, consisting of $n$ wireless ad hoc nodes, base stations (BSs) equipped with multiple antennas, and one remote central processor (RCP), is analyzed when wired backhaul links…

Information Theory · Computer Science 2014-07-29 Cheol Jeong , Won-Yong Shin

Content-Centric Networking (CCN) is a new paradigm for the future Internet where content is addressed by hierarchically organized names with the goal to replace TCP/IP networks. Unlike IP addresses, names have arbitrary length and are…

Networking and Internet Architecture · Computer Science 2017-06-15 Torsten Teubler , Dennis Pfisterer , Horst Hellbrück

Classification of an object behind a random and unknown scattering medium sets a challenging task for computational imaging and machine vision fields. Recent deep learning-based approaches demonstrated the classification of objects using…

Optics · Physics 2023-03-10 Yi Luo , Bijie Bai , Yuhang Li , Ege Cetintas , Aydogan Ozcan

To better understand the wireless network design with a large number of hops, we investigate a line network formed by general discrete memoryless channels (DMCs), which may not be identical. Our focus lies on Generalized Batched Network…

Information Theory · Computer Science 2023-12-21 Jie Wang , Shenghao Yang , Yanyan Dong , Yiheng Zhang

Optical technology may provide important architectures for future computing, such as analog optical computing and image processing. Compared with traditional electric operation, optical operation has shown some unique advantages including…

Optics · Physics 2019-10-23 Shanshan He , Junxiao Zhou , Shizhen Chen , Weixing Shu , Hailu Luo , Shuangchun Wen

In light of recent achievements in optical computing and machine learning, we consider the conditions under which all-optical computing may surpass electronic and optoelectronic computing in terms of energy efficiency and scalability. When…

Emerging Technologies · Computer Science 2023-06-14 Michał Matuszewski , Adam Prystupiuk , Andrzej Opala

Underwater wireless optical communications is an emerging solution to the expanding demand for broadband links in oceans and seas. In this paper, a cellular underwater wireless optical code division multiple-access (UW-OCDMA) network is…

Networking and Internet Architecture · Computer Science 2016-02-26 Farhad Akhoundi , Mohammad Vahid Jamali , Navid Banihassan , Hamzeh Beyranvand , Amir Minoofar , Jawad A. Salehi

Wireless optical communications (WOC) has carriers up to several hundred terahertz, which offers several advantages, such as ultrawide bandwidth and no electromagnetic interference. Conventional WOC that uses light transmitters such as…

Systems and Control · Electrical Eng. & Systems 2021-06-28 Mingliang Xiong , Qingwen Liu , Gang Wang , Georgios B. Giannakis , Chuan Huang

Optical Wireless Communication (OWC) has gained significant attention due to its high-speed data transmission and throughput. Optical wireless channels are often assumed to be flat, but we evaluate frequency selective channels to consider…

Signal Processing · Electrical Eng. & Systems 2026-01-21 Dianxin Luan , John Thompson

Optical wireless communication (OWC) is a promising technology for future wireless communications owing to its potentials for cost-effective network deployment and high data rate. There are several implementation issues in the OWC which…

Information Theory · Computer Science 2023-12-05 Hoon Lee , Sang Hyun Lee , Tony Q. S. Quek , Inkyu Lee

Future wireless networks are envisioned to employ multiple-input multiple-output (MIMO) transmissions with large array sizes, and therefore, the adoption of complexity-scalable transceiver becomes important. In this paper, we propose a…

Signal Processing · Electrical Eng. & Systems 2025-04-15 Jie Yang , Wanchen Hu , Yi Jiang , Shuangyang Li , Xin Wang , Derrick Wing Kwan Ng , Giuseppe Caire

Many optical circuit switched data center networks (DCN) have been proposed in the past to attain higher capacity and topology reconfigurability, though commercial adoption of these architectures have been minimal. One major challenge these…

Networking and Internet Architecture · Computer Science 2020-10-02 Min Yee Teh , Shizhen Zhao , Peirui Cao , Keren Bergman

Physical layer network coding (PNC) has been studied to serve wireless network MIMO systems with much lower backhaul load than approaches such as Cloud Radio Access Network (Cloud-RAN) and coordinated multipoint (CoMP). In this paper, we…

Signal Processing · Electrical Eng. & Systems 2018-05-22 Tong Peng , Yi Wang , Alister G. Burr , Mohammad Shikh-Bahaei

Uplink sensing is still a relatively unexplored scenario in integrated sensing and communication which can be used to improve positioning and sensing estimates. We introduce a pilot-based maximum likelihood, and a maximum a posteriori…

Signal Processing · Electrical Eng. & Systems 2024-06-13 Enrique T. R. Pinto , Markku Juntti

The Breadth First Search (BFS) algorithm is the foundation and building block of many higher graph-based operations such as spanning trees, shortest paths and betweenness centrality. The importance of this algorithm increases each day due…

Distributed, Parallel, and Cluster Computing · Computer Science 2017-04-04 Julian Romera

The challenges of graph stream algorithms are twofold. First, each edge needs to be processed only once, and second, it needs to work on highly constrained memory. Diffusion degree is a measure of node centrality that can be calculated (for…

Data Structures and Algorithms · Computer Science 2024-02-01 Vinit Ramesh Gore , Suman Kundu , Anggy Eka Pratiwi

In optical-processing-enabled network, transitional lightpaths crossing the same node could be optically encoded to each other to achieve greater spectral efficiency. In this context, we present a new research problem, entitled, routing,…

Networking and Internet Architecture · Computer Science 2022-04-27 Dao Thanh Hai

Dielectric optical waveguides constitute the main building blocks of photonic integrated circuits (PICs). Channels with high refractive index contrast can provide very compact PIC components whereas structures with lower index exhibit less…

Optics · Physics 2023-01-31 Hamed Nikbakht , Bob van Someren , Manfred Hammer , B. Imran Akca