WhiteFi Infostation: Engineering Vehicular Media Streaming With Geolocation Database
The TV white spaces (TVWS) enabled infostation has received significant attention due to its wide area coverage for cost effective and media rich content dissemination. In this paper, we engineer WhiteFi infostation, which is dedicated for Internet based vehicular media streaming by leveraging geolocation database. After demonstrating the empirical observations of unique TVWS features and analyzing the real world TVWS data collected from geolocation database, we first propose an optimal TVWS network planning to deploy WhiteFi infostation with the objective of maximizing network wide throughput. The proposed TVWS network planning jointly considers the multi radio configuration and the channel power tradeoff, which can be realized by decentralized Markov approximation. Furthermore, we introduce a location aware contention free multi polling access scheduling scheme for vehicular media streaming, which considered both the realistic vehicular applications and dynamics of wireless channel conditions. Through extensive simulations with real world empirical TVWS data and urban vehicular traces, we demonstrate that our WhiteFi infostation solution can well support both the delay sensitive and delay tolerant vehicular media streaming services.
IEEE Journal on Selected Areas in Communications