New hierarchical approach to reactive routing protocols for wireless ad hoc networks with cross-layer design. (7th December 2006)

• Record Type: Journal Article
• Authors: Tarique, Mohammed; Tepe, Kemal E.
• Is Part Of: International journal of ad hoc and ubiquitous computing. Volume 2:Number 1/2(2007)
• Page Start: 12
• Page End: 20
• Publication Date: 2006-12-07
• Subjects: wireless networks -- ad hoc networks -- cross-layer routing -- clustering -- congestion routing -- pervasive computing -- ad hoc computing -- reactive routing protocols -- simulation -- routing efficiency -- ubiquitous computing; Ubiquitous computing -- Periodicals; Embedded computer systems -- Periodicals; Electronic data processing -- Distributed processing -- Periodicals; Wireless communication systems -- Periodicals; Computer architecture -- Periodicals; 004.2
• Languages: English
• ISSNs: 1743-8225

Abstract

A hierarchical routing protocol is designed for reactive ad hoc networks. In the hierarchical architectures network nodes are classified as Mobile Nodes (MNs) and Forwarding Nodes (FNs). FNs are selected from MNs during the route discovery phase of the reactive routing. This FN selection algorithm is distributed, dynamic and requires no additional protocol messaging other than used during the route discovery. The FN selection algorithm is further improved by using network congestion information from Medium Access (MAC) layer. The protocol is implemented using Dynamic Source Routing (DSR) protocol, and the new protocol is called HDSR. Simulation results show that HDSR significantly improves the routing efficiency in wireless ad hoc networks.