A Method of Detecting Time-Frequency Code in MB-OFDM UWB System

The MB-OFDM UWB is a wireless technology that can transmit information at the maximum data rate of 480 Mbps. In this system, channelization for different piconets is achieved by using different time-frequency codes for different piconets. So, when a new device wants to enter a present piconet, it should detect the time-frequency code of that piconet. we propose a new method that controls physical layer using a modified time-frequency code, which makes it easy to detect the used time-frequency code.