Location-aided routing protocol in hybrid wired-wireless networks

Abstract

We propose a hybrid wired-wireless network that comprises a wireless ad hoc network combined with the fixed wired network with the latter forming a high-speed interconnected backbone.Routing is critical to achieve good performance in such a hybrid network environment.Previous research has not taken advantage of other research works on the routing protocols using location information. Here, we propose two different location-aided routing protocols, namely the Location-Aided On-Demand (LAOD) routing protocol, and the Link-Connectivity-Prediction-Based Location-Aided Routing (LLR) protocol, both of which make use of location information but in different ways. We also propose a gateway discovery algorithm to build the K-hop subnets around the gateways (GWs), which is fundamental to our proposed routing protocols. Simulation results using Network Simulator (NS2) show that our proposed routing protocols achieve better routing performance than the topology-based routing protocols, particularly Ad-hoc On Demand Distance Vector Routing (AODV).