Bandwidth Issues White Papers
Joint Scale-Lag Diversity in Mobile Ultra-Wideband Systems
Overview This paper considers the effect of mobility on an Ultra-WideBand (UWB) direct sequence spread spectrum communication system. Based on a uniform ring of scatterers model, the paper determines that the wideband scattering function has a "Bathtub-shaped" scale spectrum. The paper compares the performances of a scale-lag Rake and a frequency-lag Rake, each capable of leveraging the diversity that results from mobility. The scale-lag Rake receiver, whose scale- and lag-shifted basis functions are matched to the dilation delay dynamics of the wideband channel, exploits greater diversity.
| Publisher | Ohio State University | File Format | |
|---|---|---|---|
| Date Published | November 2004 | ||
| Format | White Papers | ||
| Topics | |||
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