Geographic Routing in Wireless Ad Hoc Networks

Abstract

Geographic routing has become an efficient solution for communicationsand information delivery in wireless ad hoc networks where the positioninformation of nodes is available. This chapter provides a comprehensiveoverview of basic principles, classical techniques, as well as latestadvances in geographic routing. The chapter first presents in detailthe topic of geographic unicast routing, where the presentation isfocused on two operation modes of geographic forwarding, that is,greedy forwarding and void handling. The chapter also briefly introducesthree advanced topics in geographic routing: geographic multicast,geocast, and trajectory-based forwarding. Finally, the chapter makessome comments on the practical aspects of geographic routing forpractitioners and discusses the directions for further research witha list of open issues in the area of geographic routing.