WiMedia UWB technology: 480Mb/s wireless USB

Since the FCC opened up the spectrum for Ultra Wide Band (UWB) operation in the 3.1 to 10.6GHz range, several standards have been proposed to realize moderate and high rate short-range communication systems. Under the Wimedia umbrella, industry incorporated UWB as the technology to achieve high data rates up to 480Mbps for wireless USB v2.0 applications. The WiMedia standard uses multi-band QPSK-OFDM modulated sub-bands of 528 MHz. A fast frequency-hopping scheme is applied to achieve efficient and robust communication links up to 10m distance. Co-existence and co-habitance with other communication standards as GSM/WCDMA and WLAN/BT/GPS is an important but challenging system requirement. next.