Performance analysis of AODV with multi-radio in hybrid wireless mesh network

Abstract

Wireless Mesh Network (WMN) is a promising wireless technology for several emerging and commercially interesting applications. It is a multi-hop wireless access network where nodes can act both as a host as well as a router. The proposed work focuses on architecture of hybrid mesh network such that gateway routers are used for accessing the internal or external network. The mesh router has been divided into two parts that is, backbone mesh router and border mesh router (BMR). With the recent 802.11e quality-of-service (QOS) extension realtime applications such as voice over IP and video streaming are finding their way to be running over WLANs. This paper proposes twin adaptation of hybrid mesh network architecture at physical layer and 802.11e MAC layer considering a network model, which is an enhancement of AODV-MR routing protocol. Based on simulation results, we show that there is a significant improvement on standard AODV in terms of key performance metrics such as Throughput, delay, packet delivery ratio and normalized routing overhead.