Abstract
The greedy strategy of geographical routing may cause the local minimum problem when there is a hole in the routing area. It depends on other strategies such as perimeter routing to find a detour path, which can be long and result in inefficiency of the routing protocol. In this paper, we propose a new approach called Intermediate Target based Geographic Routing (ITGR) to solve the long detour path problem. The basic idea is to use previous experience to determine the destination areas that are shaded by the holes. The novelty of the approach is that a single forwarding path can be used to determine a shaded area that may cover many destination nodes. We design an efficient method for the source to find out whether a destination node belongs to a shaded area. The source then selects an intermediate node as the tentative target and greedily forwards packets to it, which in turn forwards the packet to the final destination by greedy routing. ITGR can combine multiple shaded areas to improve the efficiency of representation and routing. We perform simulations and demonstrate that ITGR significantly reduces the routing path length, compared with existing geographic routing protocols.
Original language | English |
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Pages (from-to) | 204-212 |
Number of pages | 9 |
Journal | Digital Communications and Networks |
Volume | 1 |
Issue number | 3 |
DOIs | |
State | Published - Aug 1 2015 |
Bibliographical note
Funding Information:The work presented herein was funded in part by the U.S. Department of Energy, Energy Efficiency and Renewable Energy Program , under University of Central Florida Award Number DE-EE0006340 . The views and opinions of the authors expressed herein do not necessarily state or reflect those of the United States Government or any agency thereof, nor of the University of Central Florida or any agency thereof.
Funding Information:
The work presented herein was funded in part by the U.S. Department of Energy, Energy Efficiency and Renewable Energy Program, under University of Central Florida Award Number DE-EE0006340. The views and opinions of the authors expressed herein do not necessarily state or reflect those of the United States Government or any agency thereof, nor of the University of Central Florida or any agency thereof.
Publisher Copyright:
© 2015 The Authors
ASJC Scopus subject areas
- Hardware and Architecture
- Computer Networks and Communications