Differential Space-Time Block Coding for IR-UWB
In order to enhance the transmission performance of the IR-UWB (impulse radio ultra wideband) system, the space-time technology of MIMO (multiple input and multiple output) has been considered. In view of the low power in the UWB mobile terminal, we need to estimate the channel in the receiver when using the space-time code. However, the complexity of the terminal is increased. For this reason, the UWB difference space-time block code (DSTBC) is proposed for BPSK (Binary Phase Shift Keying) IR-UWB in this paper, which does not need to estimate the channel in the receiver and simplified the terminal complexity. the simulation show the performance of the scheme and prove it efficient and available.