Research on a novel synchronization and detection scheme used in energy detection UWB receiver

Ultra-wideband (UWB) is a modern radio technology that works at extremely low energy levels. It is popularly used in short-range, low power and low cost communications such as RFIDs. This paper presents a UWB receiver using energy detection scheme with on-off keying (OOK) modulation. A novel synchronization and detection algorithm called energy offset based scheme is investigated and used in the receiver. This scheme aims at reducing power consumption and simplifying hardware complexity of the receiver. The prototype of the receiver´s baseband is implemented on FPGA, with the design of FSMs in the controller. Simulation results are given, which reveal that the proposed UWB receiver has simple and power saving synchronization blocks, smaller preamble code length in synchronization, whereas maintaining performance in the target level.