A Three-Component Model Based on Macropropagation Phenomena Approach for Complex Building Scattering

الملخص EN

Multipaths represent a common predominant anduncontrolled component on channel impairments for all terrestrialand Land Mobile Satellite systems.

Without restrictions w.r.t mobile terrestrial applications, the addressed multipath problematicin this paper is focused on Land Mobile Satellite applicationswhere delayed signal replicas are highly impacting performanceson communication systems while they induce strong positioningerrors for navigation systems.

The actual trend in propagationchannel modelling is to improve the multipath characterisationand representation by using semideterministic and hybridphysical-statistical models into channel simulators instead ofnarrow-band empirical approaches.

In this context, this paperpresents a new simplified model, called 3CM (3-Component Model) to reproduce building scattering in an efficient waywhich strongly improves computation performances.

This modelis based on asymptotic methods, namely, PO (Physical Optics)which allows the 3CM to be frequency scalable, polarimetric, anddielectric materials oriented.

Note that the proposed model andthe retained approach can be integrated into more complex toolssuch as existing ray tracers.

However, this issue is not discussedin this paper.