Ultra Wide-Band (UWB) radio uses base-band pulses of very short duration, thereby spreading the energy of radio signal very thinly over gigahertz. Power Spectral Density (PSD) of UWB signals consists of continuous and discrete components. Since the discrete component contributes more to PSD than continuous component, it presents greater interference to other narrow-band wireless systems. UWB was approved by the FCC for commercial deployment in 2002. In order to ensure negligible mutual interference, the FCC has specified emission limits for UWB applications. UWB is now under consideration as an alternative physical layer technology for wireless PAN in IEEE 802.15.3a. However, little study has been reported on PSD issues in IEEE 802.15.3a. This paper presents analysis on PSD of UWB signals in IEEE 802.15.3a systems, and on what frame reversion can achieve in reducing the PSD.
scite is a Brooklyn-based organization that helps researchers better discover and understand research articles through Smart Citations–citations that display the context of the citation and describe whether the article provides supporting or contrasting evidence. scite is used by students and researchers from around the world and is funded in part by the National Science Foundation and the National Institute on Drug Abuse of the National Institutes of Health.