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Open AccessArticle

Deterministic Greedy Routing with Guaranteed Delivery in 3D Wireless Sensor Networks

Cisco Systems, Milpitas, CA 95035, USA
Mathematics Department, Harvard University, Cambridge, MA 02138, USA
The Center for Advanced Computer Studies, University of Louisiana, Lafayette, LA 70504, USA
Department of Computer Science, Stony Brook University, Stony Brook, NY 11790, USA
Author to whom correspondence should be addressed.
Axioms 2014, 3(2), 177-201;
Received: 22 February 2014 / Revised: 25 April 2014 / Accepted: 28 April 2014 / Published: 15 May 2014
With both computational complexity and storage space bounded by a small constant, greedy routing is recognized as an appealing approach to support scalable routing in wireless sensor networks. However, significant challenges have been encountered in extending greedy routing from 2D to 3D space. In this research, we develop decentralized solutions to achieve greedy routing in 3D sensor networks. Our proposed approach is based on a unit tetrahedron cell (UTC) mesh structure. We propose a distributed algorithm to realize volumetric harmonic mapping (VHM) of the UTC mesh under spherical boundary condition. It is a one-to-one map that yields virtual coordinates for each node in the network without or with one internal hole. Since a boundary has been mapped to a sphere, node-based greedy routing is always successful thereon. At the same time, we exploit the UTC mesh to develop a face-based greedy routing algorithm and prove its success at internal nodes. To deliver a data packet to its destination, face-based and node-based greedy routing algorithms are employed alternately at internal and boundary UTCs, respectively. For networks with multiple internal holes, a segmentation and tunnel-based routing strategy is proposed on top of VHM to support global end-to-end routing. As far as we know, this is the first work that realizes truly deterministic routing with constant-bounded storage and computation in general 3D wireless sensor networks. View Full-Text
Keywords: 3D sensor networks; harmonic mapping; routing 3D sensor networks; harmonic mapping; routing
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Xia, S.; Yin, X.; Wu, H.; Jin, M.; Gu, X.D. Deterministic Greedy Routing with Guaranteed Delivery in 3D Wireless Sensor Networks. Axioms 2014, 3, 177-201.

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