Results 41 to 50 of about 104,021 (275)
Accurate CSI estimation with low pilots is desirable for the multiple-input multiple-output orthogonal frequency-division multiplexing (MIMO-OFDM) system.
Bolin Wang +3 more
doaj +1 more source
Underwater Optical Wireless Communications: Overview [PDF]
Underwater Optical Wireless Communication (UOWC) is not a new idea, but it has recently attracted renewed interest since seawater presents a reduced absorption window for blue-green light. Due to its higher bandwidth, underwater optical wireless communications can support higher data rates at low latency levels compared to acoustic and RF counterparts.
Giuseppe Schirripa Spagnolo +2 more
openaire +3 more sources
Hierarchically Federated Learning in Wireless Networks: D2D Consensus and Inter-Cell Aggregation
Decentralized federated learning (DFL) architecture enables clients to collaboratively train a shared machine learning model without a central parameter server.
Jie Zhang +4 more
doaj +1 more source
Human motion classification based on micro-Doppler effect has been widely used in various fields. However, the motion classification performance would be greatly degraded if the wireless environment has non-target micro-motion interference. In this case,
Xiaolin Ma +4 more
doaj +1 more source
Improved Diver Communication System by Combining Optical and Electromagnetic Trackers
The increasing need for observation in seawater or ocean monitoring systems has ignited a considerable amount of interest and the necessity for enabling advancements in technology for underwater wireless tracking and underwater sensor networks for ...
Aman Kataria +5 more
doaj +1 more source
Optical wireless communications for micromachines
A key challenge for wireless sensor networks is minimizing the energy required for network nodes to communicate with each other, and this becomes acute for self-powered devices such as 'smart dust'. Optical communications is a potentially attractive solution for such devices.
O'Brien, D +6 more
openaire +2 more sources
Advanced Progress of Optical Wireless Technologies for Power Industry: An Overview
Optical wireless communications have attracted widespread attention in the traditional power industry because of the advantages of large spectrum resources, strong confidentiality, and freedom from traditional electromagnetic interference.
Jupeng Ding +4 more
doaj +1 more source
Quantum Entanglement Distribution in Next-Generation Wireless Communication Systems
In this work we analyze the distribution of quantum entanglement over communication channels in the millimeter-wave regime. The motivation for such a study is the possibility for next-generation wireless networks (beyond 5G) to accommodate such a ...
Hosseinidehaj, Nedasadat +1 more
core +1 more source
A survey on OFDM-based elastic core optical networking [PDF]
Orthogonal frequency-division multiplexing (OFDM) is a modulation technology that has been widely adopted in many new and emerging broadband wireless and wireline communication systems.
De Leenheer, Marc +3 more
core +2 more sources
Energy Efficient User Association for Cloud Radio Access Networks
Cloud radio access network (C-RAN) and massive multiple-input multiple-output (MIMO) are recognized as two key technologies for the fifth-generation mobile networks.
Jun Zuo +4 more
doaj +1 more source

