HDSDV: A Novel Scalable Routing Protocol for Large Heterogeneous Ad Hoc Networks
Paper ID : 1759-IST
1amirhosein imani *, 2Alireza Keshavarz-Haddad
1shiraz university student
2School of Electrical and Computer Engineering, Shiraz University
The classic flat Ad Hoc routing protocols do not scale well in heterogeneous wireless networks, as they do not take advantage of the transmission capabilities of different nodes in the network. Building a physically hierarchical Ad Hoc network is a promising approach to achieve good scalability in heterogeneous networks. In this paper, we propose a novel heterogonous routing protocol based on DSDV, called HDSDV, which utilizes some high capacity links as part of its routings and also reduces the amount control packets in the network. The protocol dynamically partitions the network nodes into multi-hop clusters (zones) in which a cluster-head is elected to be a backbone node (BN). Next, the BNs are connected to each other via some high-capacity stable links (such as satellite or long range radios). Then, the ordinary mobile Ad Hoc nodes automatically discover nearby BNs and use their help to establish long distance connections. Our simulation results in NS2 indicate that HDSDV can greatly improve the performance in large heterogeneous networks compare to the classic flat DSDV protocol. The proposed method can be used in also other classic Ad Hoc routing protocols in order to improve the performance in heterogeneous networks.
Heterogeneous Networks, Mobile Ad Hoc routing, hierarchical protocol, scalability, DSDV