Title: On multipath balancing and expanding for wireless multimedia sensor networks
Authors: Min Chen; Victor C.M. Leung; Lei Shu; Han-Chieh Chao
Addresses: School of Computer Science and Technology, Huazhong University of Science and Technology, 430074 China; Department of Computer Science, St. Francis Xavier University, B2G2W5 Canada; School of Computer Science and Engineering, Seoul National University, 151-742 Korea. ' Department of Electrical and Computer Engineering, University of British Columbia, V6T 1Z4, Canada. ' Department of Multimedia Engineering, Graduate School of Information Science and Technology, Osaka University, 565-0871, Japan. ' Institute and Department of Electronic Engineering, National Ilan University, 26041, Taiwan
Abstract: Multiple disjointed paths have been demonstrated to be effective in delivering multimedia traffic in Wireless Sensor Networks (WSNs), and improving the network performance in terms of bandwidth aggregation, reliability and network lifetime. In this paper, we investigate the use of Directional Geographical Routing (DGR) for multipath construction for multimedia data dissemination, and identify the challenging issue of achieving multipath balancing in proximity to the source/sink. The path construction is divided into expanding phase, parallel phase and converging phase in the proposed scheme, which includes two key algorithms, i.e., the detection algorithm for path construction phase and the deviation angle adjustment algorithm. Simulation results verify the effectiveness of the proposed scheme.
Keywords: wireless multimedia sensor networks; multipath balancing; geographic routing; wireless sensor networks; wireless networks; WSNs; WMSNs; simulation.
International Journal of Ad Hoc and Ubiquitous Computing, 2012 Vol.9 No.2, pp.95 - 103
Received: 13 Nov 2009
Accepted: 15 Mar 2010
Published online: 23 Feb 2012 *