An adaptive srake reception of biorthogonal IR-TH UWB signals in IEEE 802.15.4a industrial NLOS environment

IEEE 802.15.4a impulse radio-time hopping ultra wide band (IR-TH UWB) physical layer (PHY) is robust against dense multipath fading. However, scattering and reflections in industrial surroundings, render plenty of resolvable multipath components (MPCs), for which coherent Rake reception suffers serious complexity. We propose an addition of an adaptive noise canceler (ANC) at the front end of conventional Srake in dense IEEE 802.15.4a industrial non line of sight (NLOS) environment. The performance of ANC is assessed and an equivalent orthogonal set for the generated biorthogonal signals is employed. In addition, we evaluate the error performance of the proposed adaptive Srake in comparison with conventional Srake and additive white Gaussian noise (AWGN) correlation receivers. Our simulation results show that the proposed architecture offers significant improvement with much reduced intricacy.