Constrained Delaunay Triangulation for Ad Hoc Networks. (23rd March 2008)

• Record Type: Journal Article
• Authors: Satyanarayana Satyanarayana, D. D.; Rao Rao, S. V. S. V.
• Other Names: Hamdaoui Hamdaoui Bechir Bechir Academic Editor.
• Is Part Of: Journal of computer systems, networks, and communications. Volume 2008(2008)
• Publication Date: 2008-03-23
• Subjects: Computer systems -- Periodicals; Computer networks -- Periodicals; Computer networks; Computer systems; Periodicals; Electronic journals; 004.605
• DOI: 10.1155/2008/160453
• Languages: English
• ISSNs: 1687-7381

Abstract

Abstract : Geometric spanners can be used for efficient routing in wireless ad hoc networks. Computation of existing spanners for ad hoc networks primarily focused on geometric properties without considering network requirements. In this paper, we propose a new spanner called constrained Delaunay triangulation (CDT) which considers both geometric properties and network requirements. The CDT is formed by introducing a small set of constraint edges into local Delaunay triangulation (LDel) to reduce the number of hops between nodes in the network graph. We have simulated the CDT using network simulator (ns-2.28) and compared with Gabriel graph (GG), relative neighborhood graph (RNG), local Delaunay triangulation (LDel), and planarized local Delaunay triangulation (PLDel). The simulation results show that the minimum number of hops from source to destination is less than other spanners. We also observed the decrease in delay, jitter, and improvement in throughput.