Title: Performance evaluation of region estimation with reactive routing in wireless sensor networks
Authors: Sanat Sarangi; Subrat Kar
Addresses: Bharti School of Telecommunication Technology and Management, Indian Institute of Technology, Hauz Khas, New Delhi 110016, India ' Bharti School of Telecommunication Technology and Management, Indian Institute of Technology, Hauz Khas, New Delhi 110016, India
Abstract: Sensor networks with mobile nodes often employ reactive routing strategies to transfer events to the gateway of the network. Estimating the region of presence of a GPS-less mobile sensor node is non-trivial as infrastructural assumptions for the network are time-dependent. Our contribution has two parts. Firstly, we propose an anchor node placement algorithm, ANCHREG, which establishes the theoretical basis for maximising region estimation performance with reactive routing in sensor networks. Region of a mobile node is estimated by detection if the region is anchored and prediction if the region is unanchored. ANCHREG calculates the minimum number of anchor nodes required and generates their optimal deployment configuration to maximise region estimation accuracy. Secondly, we simulate reactive routing over optimal ANCHREG-generated deployment configurations and compare the performance of region prediction for mobile nodes with machine learning models, namely - artificial neural networks (ANN) and support vector machines (SVM).
Keywords: performance evaluation; region estimation; reactive routing; wireless sensor networks; WSNs; anchor node placement; mobile nodes; node localisation; prediction; machine learning; support vector machines; SVM; ANNs; artificial neural networks; ANCHREG; AODVjr; node deployment; simulation.
International Journal of Sensor Networks, 2016 Vol.22 No.2, pp.87 - 99
Received: 25 Aug 2014
Accepted: 10 May 2015
Published online: 29 Sep 2016 *