Impact of Bandwidth on Small-Scale Fade Depth

Abstract— This paper investigates the impact of channel bandwidth on fading in wireless channels using indoor measurements. The variation of channel energy over a local region is examined for narrowband, wideband and ultrawideband (UWB) channels, and the corresponding fade depth is evaluated. The relation between bandwidth and fade depth is then captured with a simple dual-slope model. The effect of antenna polarization and line-ofsight blockage is also investigated. We observe that the fade depth initially falls rapidly with bandwidth, reaching 4 dB at 1 GHz, but further reduction in fading with bandwidth is much slower.

• Type: Conference
• Year: 2007
• Where: GLOBECOM
• Authors: Wasim Q. Malik, Ben Allen, David J. Edwards
• Keywords: Channel Bandwidth, Corresponding Fade Depth, Fade Depth, GLOBECOM 2007, Telecommunications