PERFORMANCE EVALUATION OF UWB-IR SYSTEM

Abstract

Ultra Wideband Technology for commercial communication application is a recent innovation. Short-range wireless systems have recently gained a lot of attention to provide multimedia communications and to run high speed applications around a user centric concept in so called Wireless Personal Area Networks (WPAN). UWB technology presents itself as a good candidate for the physical layer of the WPAN. In this thesis, we present a comparative study analysis and system performances of the time-hopping and direct-sequence systems. TH-PPM is a originally proposed modulation scheme for UWB systems. We have shown the bit error rate (BER) performance of the TH-PPM, TH-BPSK, DS-PPM and DS-BPSK systems. Further, we extended our work for different number of users and different monocycles used for the transmission. Under different system parameters, the BER of time-hopping and direct-sequence systems are examined.