Title :
Analytical Approach to Model the Fade Depth and the Fade Margin in UWB Channels
Author :
Llano, Gonzalo ; Reig, Juan ; Rubio, Lorenzo
Author_Institution :
Radio & Wireless Commun. Group, Univ. Politec. de Valencia, Valencia, Spain
Abstract :
In this paper, the variations of the ultrawideband (UWB) channel power as a function of the channel bandwidth are investigated. An analytical approach to characterize the fade depth and the fade margin due to small-scale fading in indoor environments is proposed. The approach is based on the IEEE 802.15.4a ultrawideband channel model and the assumption that the channel power can be modeled by a Gamma distribution. This analytical approach is checked by comparison with results derived through Monte Carlo simulations. The results show that the fade depth and the fade margin are closely related to the channel bandwidth. This analytical approach can be used to design and implement UWB communications systems.
Keywords :
Monte Carlo methods; Nakagami channels; gamma distribution; indoor radio; ultra wideband communication; Gamma distribution; IEEE 802.15.4a; Monte Carlo simulations; Nakagami-m fading; UWB channels; UWB communications; channel bandwidth; fade depth; fade margin; indoor environments; ultrawideband channel; Analytical models; Approximation methods; Bandwidth; Channel models; Fading; Simulation; Ultra wideband communication; Fade depth; Nakagami- $m$ fading; fade margin; ultrawideband (UWB) channel power;
Journal_Title :
Vehicular Technology, IEEE Transactions on
DOI :
10.1109/TVT.2010.2070815
