A Simple Modified Peak Detection Based UWB Receiver for WSN and IoT Applications

Ultra-wide band (UWB) communication is a viable solution for Wireless Sensor Network (WSN) and Internet of Things (IoT) due to low cost and low power requirement. However, UWB transceiver design is more complex due to large bandwidth and precise synchronization requirement. In this paper, we propose a simple peak detection based non-coherent UWB receiver, suitable for low data rate WSN and IoT based applications. The proposed receiver divides each data symbol frame duration into smaller multiple time windows. In each time window, peak of received signal is detected independently using threshold comparison. The transmitted signal is detected in a frame by employing decisions on all multiple time windows. From simulation, it is observed that the proposed receiver outperforms existing non-coherent receivers. The performance analysis of the proposed receiver is carried out by using time hopping pulse position modulation (TH-PPM) UWB signal in additive white Gaussian noise (AWGN), multipath communication using the existing IEEE 802.15.4a standard.