Short-range Wireless Multimedia Transmission with Ultra-wideband Based MB-OFDM Technology
基于MB-OFDM UWB的短距离无线多媒体传输

Ultra-Wideband(UWB) is a radio technology to accomplish multimedia transmitting for HR-WPAN(high-rate wireless personal area network).Being modulated by a group of sharp pulse,UWB sends data through an ultra wide RF and shares in the spectrum with overlapping.UWB possesses excellent characteristics: high spectrum utilization ratio,ambition performance of anti multi-path attenuation,very low emission power and good system security.UWB provides the high-rate wireless connect scheme for consuming electronic devices,make the video connection and desktop application executing on common RF platform.Studying the development of UWB has realistic meaning that includes standardization,products,market and leading trend's technology.The paper provides an overview on UWB specifications,analyses the principle of MB-OFDM(multi-band orthogonal frequency division multiplexing) technology,and introduces the RF platform and its applications based on WiMedia UWB.