B4 Public B4 Public B4 Public B4 Public

Abstract

1 XXX: name of the partner producing the report ™ TU/e, Philips, Agere or KPN Y: the number of the WorkPackage from which the report is originated ™ 1, 2, …, 8 DDD: distribution classification level ™ PUB (public), INT (internal), … NN: a (two) digit serial number associated to each partner, which is increased for each document created by the partner, regardless of the document type. VV: a (two) digit serial number associated to each document, which is increased for each version of the document. Abstract: In this third and final deliverable of work package 2 the initial research results presented in the previous deliverable (D2.2) are completed and extended. Some parts of D2.2 are admitted in this work to present a coherent and complete work. In addition, subjects for further research are presented. Results with respect to WLAN are separated and presented in a separate document, i.e. Deliverable D2.4-Radio Channel Modelling of Indoor Wireless LAN Systems. An overview of relevant channel parameters shows that all channel characteristics needed for UMTS system planning and the evaluation of advanced receiver algorithms can be derived from the channel power-delay-angle profile. They are mutually related by correlation expressions. Moreover, a short introduction on Smart Antennas is presented and a brief exposition of channel models is given. They are required for the investigation of multiple-input multiple-output (MIMO) communication systems. A wideband directional channel model and a deterministic (2-D) ray-tracing model are compared in a microcell and show a significant mismatch in the system performance prediction for the Rake-antenna array processing due to differently predicted levels of separation between spatial signatures of the desired and interfering user. It is known that the transmission through buildings can be the dominant propagation mode in microcells. To accommodate this propagation mechanism a reliable and easy-to-use building-transmission loss model is derived and evaluated. This model requires each building's exterior coordinates and dielectric permittivity, as well as one additional coefficient that characterises the attenuation in the building interior. With empirical investigation it was found that the dominant multipath contributions do not change moving a MS from an outdoor to an indoor environment. Also, an increase of the rms delay spread was established inside buildings due to the composition of the rays that include many contributions coming from outside. A measurement campaign has been performed to compare field strengths predicted with an empirical-statistical and a deterministic (3-D) ray-tracing model, deployed …

Cite this paper

@inproceedings{Arvalo2005B4PB, title={B4 Public B4 Public B4 Public B4 Public}, author={R. Caballero Garc{\'i}a de Ar{\'e}valo and Franco TNO and W. van Blitterswijk}, year={2005} }