Friedman Tchoffo Talom

Ultra-Wideband Radio Propagation Channels

Apart from any fair dealing for the purposes of research or private study, or criticism or review, as permitted under the Copyright, Designs and Patents Act 1988, this publication may only be reproduced, stored or transmitted, in any form or by any means, with the prior permission in writing of the publishers, or in the case of reprographic reproduction in accordance with the terms and licenses issued by the CLA. Enquiries concerning reproduction outside these terms should be sent to the publishers at the undermentioned address: Communications ultra large bande. English Ultra-wideband radio propagation channels / Pascal Pagani ... [et al.]. p. cm.-(A practical approach) Includes bibliographical references and index.

UWB Radio Link Modeling for Multipath Environment

Ultra-wideband (UWB) systems have the potential to provide very high data rates over short distances. This paper details the construction of the received signal from a pulse waveform on the transmission line at the transmitter to the received signal at the receiver allowing a fine analysis of antennas impact on UWB systems. This is used for deterministic modeling based on ray tracing (RT) and geometrical optics (GO). The paper presents the way of sizing the pulse amplitude in order to satisfy a given power spectral density (PSD) mask for a given modulation. The proposed approach is demonstrated to be coherent with classical power link budget.

A Reciprocal MIMO-UWB Radio Channel Deterministic Modeling Framework

In order to evaluate specific cognitive radio techniques. A deterministic MIMO-UWB channel simulator based on frequency domain geometrical optics-uniform theory of diffraction (GO-UTD) is developed. This paper presents the theoretical framework used in the simulator. It exhibits the reciprocity of the transmission channel. It is well adapted for both practical ray tracing implementation and digital communication channel model realization