نتایج جستجو برای: smart antenna
تعداد نتایج: 118767 فیلتر نتایج به سال:
Recent studies on directional media access protocols (MACs) using smart antennas for wireless ad hoc networks have shown that directional MACs outperform against traditional omini-directional MACs. Those studies evaluate the performance mainly on simulations, where antenna beam is assumed to be ideal, i.e., with neither side-lobes nor back-lobes. Propagation conditions are also assumed to be ma...
This paper presents a performance analysis of a novel searcher designed for array antenna in terms of average acquisition time as well as detection and false alarm probability. It has been shown that proposed searcher significantly reduces the acquisition time compared to the conventional searcher, which does not exploit the merit of array antenna structure. Due to the shortened acquisition tim...
A form of a novel adaptive antenna system that combines radio frequency identification (RFID) technology, programmable intelligent computer (PIC) microcontroller and reconfigurable beam steering antenna is proposed. Localization and adaptive response are the most challenging issues in smart antenna system. In this research, the localization technique relying on the received signal strength (RSS...
We designed, built, and tested a real-time processor for a direction-of-arrival-based smart antenna GSM 1800 base station with eight half-wavelength spaced antenna elements. Its processing steps include direction-of-arrival (DOA) estimation, user identification, tracking, beamforming, and signal reconstruction. We demonstrate that the accuracy of DOA estimation is not of primary concern, but th...
The optically transparent antenna technology has been gaining attention in consumer electronic industry owing to its potential release the volume constraints compact mobile devices. Earlier studies have heavily focused on integration display for smartphone applications, example, improve spatial coverage of 5G mm-wave at forehead side. To our knowledge, application smart glasses and augmented re...
Smart antennas are a specific type of directional antenna able to dynamically control the gain as a function of direction. This contrasts with more traditional directional antennas, where the dynamic ability is missing, and with omnidirectional antennas, which are designed to have equal gain in all directions. Because of these characteristics, smart antennas may provide increased communication ...
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