Results 41 to 50 of about 3,934,279 (152)
Crystals, 2023 A frequency magnetically tunable perfect absorber based on graphene in the terahertz (THz) region is proposed. The performance is analysed using the 4 × 4 transfer matrix method, demonstrating that the perfect absorption frequency of the proposed ...
Zhenyan Wei, Yannan Jiang, Jiao Wang
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Wireless antennas - making wireless communications perform like wireline communications
Proceedings of the 16th International Symposium on Power Semiconductor Devices & IC's, 2004 We first provide an overview of some of the latest developments in wireless communications using multiple transmitters and multiple receivers. We point out the importance of SNR control in fast random fading environments. For applications where large antenna arrays are not suitable, we introduce the concept of wireless antennas or wireless relays that ...
Hua, Yingbo, Mei, Yan, Chang, Yu
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Enhanced LoRaWAN Adaptive Data Rate for Mobile Internet of Things Devices
Sensors, 2020 A long-range wide area network (LoRaWAN) is one of the leading communication technologies for Internet of Things (IoT) applications. In order to fulfill the IoT-enabled application requirements, LoRaWAN employs an adaptive data rate (ADR) mechanism at ...
Arshad Farhad +3 more
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Large Intelligent Surface-Assisted Wireless Communication Exploiting Statistical CSI [PDF]
IEEE Transactions on Vehicular Technology, 2018 Large intelligent surface (LIS)-assisted wireless communications have drawn attention worldwide. With the use of low-cost LIS on building walls, signals can be reflected by the LIS and sent out along desired directions by controlling its phases, thereby ...
Yu Han +4 more
semanticscholar +1 more source
Underwater Wireless Communications
SensorsEffective underwater wireless communications (UWCs) are essential for a variety of military and civil applications, such as submarine communication and discovery of new natural resources in the underwater environment [...]
Hamada Esmaiel, Haixin Sun
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A Swastika-Shaped Structure Monopole Filtenna for mm-Wave Applications [PDF]
E3S Web of ConferencesA Swastika monopole antenna, which is 20 x 20 x 0.8 mm3 and covers the frequency range of 23 GHz to 32 GHz & 37 GHz to 80 GHz, a multi-band filtenna for various applications.
Kumari Shikha, Suraj Priyadarshi
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Ultrareliable and Low-Latency Wireless Communication: Tail, Risk, and Scale [PDF]
Proceedings of the IEEE, 2018 Ensuring ultrareliable and low-latency communication (URLLC) for 5G wireless networks and beyond is of capital importance and is currently receiving tremendous attention in academia and industry.
M. Bennis +3 more
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Beamspace Spatial Smoothing MUSIC DOA Estimation Method Using Dynamic Metasurface Antenna
EntropyThe Direction-of-Arrival (DOA) estimation method using traditional array antennas cannot dynamically adjust the observation angle range based on the Region of Interest (ROI), which leads to limited estimation accuracy and high computational complexity ...
Lilong Hou +5 more
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A Comprehensive Survey of RAN Architectures Toward 5G Mobile Communication System
IEEE Access, 2019 The fifth generation (5G) of mobile communication system aims to deliver a ubiquitous mobile service with enhanced quality of service (QoS). It is also expected to enable new use-cases for various vertical industrial applications—such as ...
Mohammad Asif Habibi +3 more
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On the Downlink Throughput Capacity of Hybrid Wireless Networks With MIMO
IEEE Access, 2017 In this paper, the downlink throughput capacity of hybrid wireless networks is mainly studied. Multiple-input multiple-output (MIMO) technology is assumed to be equipped on the base station and nodes to improve communication performance and increase the ...
Baoju Zhang +3 more
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