Ultra-Wideband Radio has both traditional and nascent applications. Ultra-Wideband Radio, referred to as UWB, is a characteristic of a new radio access philosophy and utilizes several GHz of bandwidth. It promises increased data rate communication over small distances, as well as modern radar sensing and localization applications with extraordinary resolution. This book analyzes algorithms, hardware and application hassles in this field of radio technology for interactions, localization and sensing. It includes contributions from renowned experts and will be beneficial for readers interested in this field.