Improving Spatial Indexing and Searching for Location-Based DNS Queries

In the domain of vehicular networking, it is of significant relevance to be able to address vehicles based on their geographical position rather than the network address. The integration of geocasting (i.e. the dissemination of messages to all nodes within a specific geographical region) into the existing addressing scheme of the Internet is challenging, due to its logical hierarchy. One solution to Internet-based geographical addressing is eDNS, an extension to the DNS protocol. It adds support for querying geographical locations as a supplement to logical domain names. In this work, eDNS is extended with nearest neighbor resolution support, and further, a prototype server is developed that uses bounding box propagation between servers for delegation. Our experiments confirm that distributing location records over multiple servers improves performance.