Comparison of Ultra Wide Band Indoor Multipath IEEE 802.15.3 Channel Model
DOI:
https://doi.org/10.37591/joces.v2i3.273Abstract
ABSTRACT
A very large bandwidth of frequency (3.1–10.6 GHz) has been allocated to UWB systems. A single-band UWB signal propagates differently in the lower and upper bands of the spectrum due to the size of its bandwidth. The lower part of the signal can be obstructed more easily and the man-made interferences are not homogeneously distributed over the whole spectrum. The first experimental results obtained for a UWB channel show short-time duration of the CIR, strong path loss attenuation and a great number of resolvable multipaths. Most of the channel models proposed for UWB communications support the clustered ray arrival assumption described in different multipath amplitude distributions. As far as UWB path loss is concerned, general propagation physics approaches are valid, i.e., a longer distance between transmitter and receiver elements implies a lower amount of energy received. This amount of transmitted energy received at any distance of the transmitter can be computed by a propagation loss calculation using the vast amount of measurement data collected in the process of channel modeling. In order to obtain a suitable model, a great number of experimental measurements were taken to accurately characterize the UWB channel in different environments. This paper is focused on the IEEE 802.15.3a channel model. This introduces UWB channel characteristics and focuses on the model for high-data rate UWB applications, known as the IEEE 802.15.3a channel model. To start, the multipath model and the main characteristics of the IEEE 802.15.3a channel model and derive the distribution of the attenuation factors of the channel model and obtain their mean and standard deviation values.
Keywords: UWB, IEEE Channel 802.15.3, mean, multipath
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