Title :
Path loss model and root mean square delay spread characterization of near-ground outdoor UWB channel
Author :
Al-Samman, Ahmed M. ; Rahman, Tharek A. ; Nasir, Jamal ; Jamaluddin, Mohd Haizal ; Khalily, Mohsen ; Kamarudin, M.R.
Author_Institution :
Wireless Commun. Centre, Univ. Teknol. Malaysia, Skudai, Malaysia
Abstract :
The large bandwidth of ultra wideband (UWB) makes it attractive in high speed transmission applications. However, the possibility of frequency selectivity of the channel is high due to this bandwidth. Channel characterization is important to study the behavior of the channel. The ground reflection effects are important parameters affecting the ultra wideband channel. In this paper, based on outdoor time domain measurements, path loss model and root mean square (RMS) delay spread characteristics for near-ground (NG) UWB channel have been presented. Moreover, the interdependencies of these characteristics of the multipath channel are also investigated. The NG UWB channel characteristics are compared to the UWB channel above the ground. From the results it has been found that the path loss in NG UWB channel is less as compared to the above ground case. Also, the values of RMS delay spread are low.
Keywords :
mean square error methods; multipath channels; ultra wideband technology; channel characterization; frequency selectivity; ground reflection effects; multipath channel; near-ground outdoor UWB channel; path loss model; root mean square delay spread characterization; Antenna measurements; Bandwidth; Delays; Propagation losses; Receivers; Reflection; Ultra wideband technology; antenna; measurement; propagation;
Conference_Titel :
Antennas and Propagation (EuCAP), 2015 9th European Conference on
Conference_Location :
Lisbon