Spatial Data Focusing Using Time and IQ Resources for Wireless Geocasting

Guylian Molineaux (1) , Sidney Golstein (2) , Michael Odhiambo (2) , François Horlin (1) , Philippe de Doncker (1) , Julien Sarrazin (2)

1 ULB - Faculté des Sciences [Bruxelles]
2 L2E - Laboratoire d'Electronique et Electromagnétisme

Spatial Data Focusing (SDF) is introduced as a novel technique that allows wireless broadcasting of information towards specific spatial locations only. It is shown that this approach allows one to target geographic areas more accurately than traditional power focusing methods, using limited equipment at the transmitter. This paper describes the SDF system model for linear arrays, based on simple modulation techniques and transmitter architectures, both in pure line-of-sight and multipath environments. In particular, the robustness of the scheme is proven for over-the-ground propagation environments. Theoretic results are illustrated by simulations, confirming the increased spatial selectivity of SDF and showing the influence of various design parameters of the scheme on the resulting beam.

Mots clés: Geocasting; Spatial Data Focusing; Wireless Communications

Domaines: Electromagnétisme

Guylian Molineaux, Sidney Golstein, Michael Odhiambo, François Horlin, Philippe de Doncker, et al.. Spatial Data Focusing Using Time and IQ Resources for Wireless Geocasting. GLOBECOM 2019 IEEE Global Communications Conference, Dec 2019, Waikoloa, United States. ⟨10.1109/GLOBECOM38437.2019.9013948⟩. ⟨hal-02869614⟩