Impact of bandwidth, center frequency and spatial position on the results of ultra- wideband power delay profile measurements and accuracy of predictions

Zakharov, P. N.; Babushkin, A.K.; Korolev, A. F.; Kozar, A. V.

doi:10.1109/mape.2009.5355948

Cited by 2 publications

(1 citation statement)

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“…Besides, ray-tracing simulations in a realistic office environment with frequency-selective horn antennas for these respective five spectral windows have not been performed yet. In the past, numerous models of channel PDP were proposed based on simulations and measurements [28][29][30][31][32][33][34][35][36], a few of them analysed the impact of sounding bandwidth or centre frequency on channel characteristics. However, the existing channel models for lower frequencies cannot be used in the THz band because they do not grapple the behaviour of this spectrum band [10,37,38].…”

Section: Introductionmentioning

confidence: 99%

Terahertz band: Channel modelling for short‐range wireless communications in the spectral windows

Sheikh

Zarifeh

Kaiser

2016

IET Microwaves, Antennas & Propagation

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The channel in the terahertz (THz) band is extremely frequency selective. This study demonstrates a ray‐tracing method for modelling short‐range propagation channels at THz band. The propagation response of sounding bandwidth and centre frequency on power delay profile (PDP) is investigated in five spectral windows with relatively low attenuations and higher available bandwidths which could possibly offer terabit‐per‐second links also. In this approach, a very detailed non‐cubic three‐dimensional model of an ultra‐broadband indoor realistic office environment has been drawn up. Furthermore, the frequency‐dependent standard electrical parameters for the common building materials were taken from the literature. The transmitter (Tx) and the receiver (Rx) are 10 m apart in line‐of‐sight scenario with exactly same height of 1.5 m above the floor. The simulations were performed using 25 dBi horn antennas at the transmitter and receiver sides, respectively, to combat high path loss. These frequency‐dependent horn antennas were designed for the respective five spectral windows. Meanwhile, the corresponding channel impulse response of multipath components with spatial and temporal information such as angle of arrival, angle of departure and time of arrival has been captured to derive PDP models. Up to four reflections (i.e. fourth order) have been considered in the modelling process.

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