| This thesis investigates the performances of the Rake receiving and the Transmitted Reference (TR) schemes for Ultra Wideband (UWB) communication systems. UWB technology has been proposed as a promising physical layer candidate for indoor wireless communications, because it offers very fine time resolution and multipath resolvability. However, these beneficial properties also pose great challenges to the design of a low-complexity UWB receiver.;Keywords. Ultra Wideband (UWB), Rake receiver, Transmitted Reference (TR).;In this thesis, we first develop a theoretical framework to precisely analyze the performance of the UWB Rake receiving and TR systems in realistic indoor environments. We also demonstrate how the TR scheme achieves a low-complexity receiver implementation at the expense of certain performance degradation and information rate loss. To overcome these, we propose a novel UWB-TR scheme, namely M-ary orthogonal coded/Balanced TR system. Our results show that the proposed balanced TR scheme outperforms the conventional TR schemes with slightly increased transceiver complexity. |
