Wireless Communications: Principles and Practice
Wireless Communications: Principles and Practice
Improving Connectivity ofWireless Ad Hoc Networks
MOBIQUITOUS '05 Proceedings of the The Second Annual International Conference on Mobile and Ubiquitous Systems: Networking and Services
Relay Node Placement in Wireless Sensor Networks
IEEE Transactions on Computers
A wireless sensor networks MAC protocol for real-time applications
Personal and Ubiquitous Computing - Special Issue: Selected Papers of the ARCS06 Conference
Relay sensor placement in wireless sensor networks
Wireless Networks
Supporting device discovery and spontaneous interaction with spatial references
Personal and Ubiquitous Computing
Proceedings of the 2009 International Conference on Wireless Communications and Mobile Computing: Connecting the World Wirelessly
Movement-Assisted Connectivity Restoration in Wireless Sensor and Actor Networks
IEEE Transactions on Parallel and Distributed Systems
An efficient scheme of target classification and information fusion in wireless sensor networks
Personal and Ubiquitous Computing
Relay Node Deployment Strategies in Heterogeneous Wireless Sensor Networks
IEEE Transactions on Mobile Computing
Routing to a mobile data collector on a predefined trajectory
ICC'09 Proceedings of the 2009 IEEE international conference on Communications
Connectivity optimization for wireless sensor networks applied to forest monitoring
ICC'09 Proceedings of the 2009 IEEE international conference on Communications
Optimized relay placement to federate segments in wireless sensor networks
IEEE Journal on Selected Areas in Communications
Optimized relay placement for WSNs federation
Wireless Communications & Mobile Computing
Hi-index | 0.00 |
Environmental Monitoring (EM) has witnessed significant improvements in recent years due to the great utility of wireless sensor networks (WSNs). Nevertheless, due to harsh operational conditions in such applications, WSNs often suffer large-scale damage in which nodes fail concurrently and the network gets partitioned into disjoint sectors. Thus, reestablishing connectivity between the sectors, via their remaining functional nodes, is of utmost importance in EM, especially in forestry. In this regard, considerable work has been proposed in the literature tackling this problem by deploying Relay Nodes (RNs) aimed at reestablishing connectivity. Although finding the minimum relay count and positions is NP-Hard, efficient heuristic approaches have been anticipated. However, the majority of these approaches ignore the surrounding environment characteristics and the infinite 3-dimensional (3-D) search space that significantly degrades network performance in practice. Therefore, we propose a 3-D grid-based deployment for RNs in which the relays are efficiently placed on grid vertices. We present a novel approach, named fixing augmented network damage intelligently, based on a minimum spanning tree construction to re-connect the disjointed WSN sectors. The performance of the proposed approach is validated and assessed through extensive simulations, and comparisons with two main stream approaches are presented. Our protocol outperforms the related work in terms of the average relay node count and distribution, the scalability of the federated WSNs in large-scale applications, and the robustness of the topologies formed.