EURASIP Journal on Wireless Communications and Networking
Volume 2005 (2005), Article ID 165378, 16 pages
doi:10.1155/WCN.2005.645
A Cross-Layer Route Discovery Framework for Mobile Ad Hoc Networks
1Advanced Telecommunication Systems Laboratory, School of Electrical and Electronic Engineering, Queen's University of Belfast, Stranmillis Road, Belfast BT9 5AH, Ireland
2Research Center of Computer Integrated Manufactural System (CIMS), Southeast University, Nanjing 210096, China
Received 11 June 2004; Revised 12 May 2005
Abstract
Most reactive routing protocols in MANETs employ a
random delay between rebroadcasting route requests (RREQ) in order
to avoid “broadcast storms.” However this can lead to problems
such as “next hop racing” and “rebroadcast redundancy.” In
addition to this, existing routing protocols for MANETs usually
take a single routing strategy for all flows. This may lead to
inefficient use of resources. In this paper we propose a
cross-layer route discovery framework (CRDF) to address these
problems by exploiting the cross-layer information. CRDF solves
the above problems efficiently and enables a new technique:
routing strategy automation (RoSAuto). RoSAuto refers to
the technique that each source node automatically decides the
routing strategy based on the application requirements and each
intermediate node further adapts the routing strategy so that the
network resource usage can be optimized. To demonstrate the
effectiveness and the efficiency of CRDF, we design and evaluate a
macrobian route discovery strategy under CRDF.