Rich Semantic Content-oriented Routing for mobile Ad Hoc Networks

Abstract

Content-oriented applications dominate current Internet; however, the fundamental network routing is guided by host-centric IP addresses. To bridging content and IP, lots of augmented technologies, such as DHT, tracker, DNS, search engines, and so on, are required. This paper attempts to shifts routing from host-centric to content-centric to meet the current dominating applications and also improve the performance of content retrieval and dissemination for mobile Ad Hoc Networks. We utilize the identifier guided routing concept to reduce router overheads and enhance the efficiency of routers. Moreover, the semantic of an ID is no longer restricted to a host and its location; rich meanings such as person, thing, host, content etc. are able to give instead. The proposed routing, denoted as Rich Semantic Content-oriented Routing (RSCR), builds routes by rendezvousing of proactive content table dissemination and on-demand route discovery. The RSCR is a light-loaded and scalable routing protocol by utilizing local, aggregated and control-loaded broadcasting for content table dissemination. Simulation results reveal that the distribution costs are significantly reduced and the routing performance in terms of throughput, end-to-end delay, route length, route successful connecting ratio, route discovery delay, and costs are improved.