O' ALLAH; please illumine our ways with your light,and give us more from your wide knowledge since we don't possess any knowledge except only what taught us. Amen,, This book demonstrates what UWB is, and explain why it is a better candidate compared to most of the existing technologies in short-range high-speed communications; regarding the UWB signals' generation, transmission techniques, reception schemes, synchronization and search strategies in the Multipath wireless Communication channel.