An Enhanced Global Index for Location-Based Mobile Broadcast Services

Abstract

This paper proposes a new global index structure and processing for location-dependent queries in mobile broadcast environments. The proposed scheme consists of two essential elements for addressing spatial queries in broadcast databases. These two elements are: (i) determine the client's location in relevant to the spatial model adopted by the broadcast scheme, and (ii) obtain the required object, which corresponds to the location of the client as determined by the model. The global index's concept will enhance the efficiency of the model. We explore the effectiveness of the proposed index scheme in single and multi channel environments. Performance comparisons with the earlier work through simulated-experiments have also been carried out and the results found have been promising.Index Terms-location-dependent mobile broadcast query processing, enhanced global indexing scheme, location-based wireless data dissemination.

GeoVanet: A Routing Protocol for Query Processing in Vehicular Networks

“…The problem of broadcasting/flooding has been widely studied (e.g., [28]), not only for the specific case of wireless ad hoc networks but for mobile environments in general (e.g., [46]). In [41], different routing protocols for vehicular networks are compared.…”