Results 11 to 20 of about 25,641,075 (274)
Silicon-Based Graphene Electro-Optical Modulators
Photonics, 2022 With the increasing demand for capacity in communications networks, the use of integrated photonics to transmit, process and manipulate digital and analog signals has been extensively explored.
Ming Jin +6 more
doaj +1 more source
Dual-Function MIMO Radar Communications System Design Via Sparse Array Optimization [PDF]
IEEE Transactions on Aerospace and Electronic Systems, 2018 Spectrum congestion and competition over frequency bandwidth could be alleviated by deploying dual-function radar-communications systems, where the radar platform presents itself as a system of opportunity to secondary communication functions.
Xiangrong Wang, A. Hassanien, M. Amin
semanticscholar +1 more source
Simultaneously Transmitting And Reflecting (STAR) RIS Aided Wireless Communications [PDF]
IEEE Transactions on Wireless Communications, 2021 The novel concept of simultaneously transmitting and reflecting (STAR) reconfigurable intelligent surfaces (RISs) is investigated, where the incident wireless signal is divided into transmitted and reflected signals passing into both sides of the space ...
Xidong Mu +4 more
semanticscholar +1 more source
Physical Layer Communications System Design Over-the-Air Using Adversarial Networks [PDF]
European Signal Processing Conference, 2018 This paper presents a novel method for synthesizing new physical layer modulation and coding schemes for communications systems using a learning-based approach which does not require an analytic model of the impairments in the channel.
Tim O'Shea +3 more
semanticscholar +1 more source
Active Reconfigurable Intelligent Surface-Aided Wireless Communications [PDF]
IEEE Transactions on Wireless Communications, 2021 Reconfigurable Intelligent Surface (RIS) is a promising solution to reconfigure the wireless environment in a controllable way. To compensate for the double-fading attenuation in the RIS-aided link, a large number of passive reflecting elements (REs) are
Ruizhe Long +3 more
semanticscholar +1 more source
Microcomb-based integrated photonic processing unit
Nature Communications, 2023 Optical neural networks face remarkable challenges in high-level integration and on-chip operation. In this work the authors enable optical convolution utilizing time-wavelength plane stretching approach on a microcomb-driven chip-based photonic ...
Bowen Bai +13 more
doaj +1 more source
Semantic Communications for Future Internet: Fundamentals, Applications, and Challenges [PDF]
IEEE Communications Surveys and Tutorials, 2022 With the increasing demand for intelligent services, the sixth-generation (6G) wireless networks will shift from a traditional architecture that focuses solely on a high transmission rate to a new architecture that is based on the intelligent connection ...
Wanting Yang +8 more
semanticscholar +1 more source
The Shortest-Edge Duplication of Triangles
Mathematics, 2022 We introduce a new triangle transformation, the shortest-edge (SE) duplication, as a natural way of mesh derefinement suitable to those meshes obtained by iterative application of longest-edge bisection refinement. Metric properties of the SE duplication
Miguel Ángel Padrón +3 more
doaj +1 more source
Nature Communications, 2023 The fifth-generation (5G) wireless communication has an urgent need for target tracking. Digital programmable metasurface (DPM) may offer an intelligent and efficient solution owing to its powerful and flexible controls of electromagnetic waves and ...
Weihan Li +17 more
semanticscholar +1 more source
Recent Progress in Silicon-Based Slow-Light Electro-Optic Modulators
Micromachines, 2022 As an important optoelectronic integration platform, silicon photonics has achieved significant progress in recent years, demonstrating the advantages on low power consumption, low cost, and complementary metal–oxide–semiconductor (CMOS) compatibility ...
Changhao Han +4 more
doaj +1 more source