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Showing 1 to 8 of 8 for “"Coherence Bandwidth"”.
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Coherence bandwidth characterisation for indoor mobile radio microcells at microwave and millimetre wave frequencies
… reports measured and predicted results of the coherence bandwidth of indoor mobile radio microcells at 11 GHz and 62.4 GHz. Furthermore, the influence of the antennas radiation patterns and the effect of furniture on the value of the coherence bandwidth has been investigated.<br/><br/>A two …
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Wireless local area radio networks wideband characterisation and measurements at 62.4GHz
… of the channel.<br/><br/>The instantaneous coherence bandwidth is found to be highly variable with the location of the receiver with respect to the base station. With delay spread values ranging from 20 to 70ns the coherence bandwidth remains most of the times below 10MHz. Based on the …
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Design and implementation of a methodology to characterize indoor visible light communication channels
… metrics such as path loss, RMS delay spread, coherence bandwidth, and maximum bitrate. Our method accurately estimates path loss, with a measured value of $15$ dB at $30$ cm transceiver distance, consistent with simulation results in the literature. However, our lowest value for the RMS delay …
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Wideband Channel Characterization for MIMO Scenario
… estimated channels, parameters such as capacity, coherence bandwidth, RMS delay spread and maximum delay spread are compared (statistically) to those obtained from the SVA model. The comparisons of the different parameters show the ability of the SVA model to simulate wideband MIMO communication …
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Simulation of High Frequency Waves Reflected From a Turbulent Ionosphere for Spread Spectrum Systems
… is of major interest. The two-frequency mutual coherence function is computed to determine the statistical behavior of the received signal. The coherence bandwidth resulting from this computation is used to assess the ionospheric effects on HF spread spectrum systems.
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Design and Implementation of a Swept Time Delay Short Pulse (SSTDSP) Wireless Channel Sounder for LMDS
… delay for a given multipath threshold, and coherence bandwidth. The SSTDSP sounder is capable of recording these metrics through three modes of operation - continuous channel monitoring, single instant channel snapshot, or data logging. Swept time delay time dilation processing is combined …
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A Study of Electromagnetic Scattering of Communication Signals by Randomly Rough Surfaces
… 1-GHz and 5-GHz bands against a series of signal bandwidths and surface roughnesses. The results are analyzed singularly for Extended-MOMI and against Extended-Physical Optics to better understand the benefits associated with using the Extended-MOMI, the limits of the narrowband approximation, the …
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Drone Cellular Networks: Fundamentals, Modeling, and Analysis
… we first study the impact of UAV wobbling on the coherence time of the wireless channel between UAVs and a ground UE, using a Rician multi-path channel model. We consider two different scenarios for the number of UAVs: (i) single UAV scenario (SUS), and (ii) multiple UAV scenario (MUS). For each …