Results 11 to 20 of about 68,865 (333)
A Location Prediction Algorithm for Mobile Communications Using Directional Antennas [PDF]
International Journal of Distributed Sensor Networks, 2013 A directional communication scheme, TRAC, is proposed in this paper to deal with issues in mobile directional communications. Directional communication can bring benefits in terms of spatial reuse, power consumption, and security.
Xiaofeng Lu +3 more
doaj +2 more sources
Applied Sciences, 2021 This paper presents a low-profile dual-band antenna with directional radiation characteristics for wireless local area network (WLAN) applications. The proposed directional antenna is composed of a coupling microstrip line, two F-shaped strips, two ...
Yuqing Dou +4 more
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Review of Directional Routing Protocols for Flying Ad-Hoc Networks Based on Directional Antennas [PDF]
Jisuanji kexue, 2021 In recent years,flying ad-hoc networks with UAVs as nodes have received extensive attention due to their different applications in various fields.In order to meet the quality of service requirements of complex tasks,the routing of flying ad-hoc networks ...
YANG Zhang-lin, XIE Jun, ZHANG Geng-qiang
doaj +1 more source
IEEE Open Journal of the Communications Society, 2023 Multiple-Input Multiple-Output (MIMO) systems have been proposed to increase the capacity and transmission distance of sub-THz and THz communication systems.
Duschia M. Bodet, Josep M. Jornet
doaj +1 more source
Sensors, 2021 A single-layer ±45° dual-polarized directional array antenna for millimeter wave (mm-wave) applications is designed in this communication. Based on the theory of orthogonal circularly polarized (CP) wave multiplexing, two ports of a series-fed dual CP ...
Qinyi Lv +5 more
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Super Directional Antenna—3D Phased Array Antenna Based on Directional Elements
Electronics, 2022 This paper describes an antenna design approach for achieving super directivity in an AESA (Active Electronic Scanned Array) radar using an unconventional 3D phased array (PA) antenna concept based on directional Yagi–Uda elements. The proposed scheme is shown to have a wider scanning feature, with higher directivity in comparison to the same geometry ...
Benzion Levy, Ely Levine, Yosef Pinhasi
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A Low-Profile Dual-Band Directional Antenna for Unmanned Aerial Vehicle Applications
International Journal of Antennas and Propagation, 2022 A low-profile dual-band directional antenna operating at both 2.4 and 5 GHz for wireless local area networks (WLANs) for unmanned aerial vehicles (UAVs) applications is proposed in the paper.
Hui Jin +3 more
doaj +1 more source
Omni-Directional Pathloss Measurement Based on Virtual Antenna Array With Directional Antennas
IEEE Transactions on Vehicular Technology, 2023 Omni-directional pathloss, which refers to the pathloss when omni-directional antennas are used at the link ends, are essential for system design and evaluation. In the millimeter-wave (mm-Wave) and beyond bands, high gain directional antennas are widely used for channel measurements due to the significant signal attenuation.
Mengting Li +4 more
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Novel small-size directional antenna for UWB WBAN/WPAN applications [PDF]
, 2005 This paper presents a novel small-size directional antenna design for ultrawide-band wireless body area networks/wireless personal area networks applications.
Klemm, M +3 more
core +2 more sources
On Connectivity of Wireless Sensor Networks with Directional Antennas
Sensors, 2017 In this paper, we investigate the network connectivity of wireless sensor networks with directional antennas. In particular, we establish a general framework to analyze the network connectivity while considering various antenna models and the channel ...
Qiu Wang +4 more
doaj +1 more source