Covering the plane with convex polygons
Discrete & Computational Geometry
PEAS: A Robust Energy Conserving Protocol for Long-lived Sensor Networks
ICDCS '03 Proceedings of the 23rd International Conference on Distributed Computing Systems
Poster abstract: an energy-balanced transmission scheme for sensor networks
Proceedings of the 1st international conference on Embedded networked sensor systems
Purposeful Mobility for Relaying and Surveillance in Mobile Ad Hoc Sensor Networks
IEEE Transactions on Mobile Computing
On k-coverage in a mostly sleeping sensor network
Proceedings of the 10th annual international conference on Mobile computing and networking
Methods for Scalable Self-Assembly of Ad Hoc Wireless Sensor Networks
IEEE Transactions on Mobile Computing
A Minimum Cost Heterogeneous Sensor Network with a Lifetime Constraint
IEEE Transactions on Mobile Computing
Worst and Best-Case Coverage in Sensor Networks
IEEE Transactions on Mobile Computing
Mobility improves coverage of sensor networks
Proceedings of the 6th ACM international symposium on Mobile ad hoc networking and computing
IEEE Transactions on Computers
Integrated coverage and connectivity configuration for energy conservation in sensor networks
ACM Transactions on Sensor Networks (TOSN)
Maintaining differentiated coverage in heterogeneous sensor networks
EURASIP Journal on Wireless Communications and Networking
Deploying wireless sensors to achieve both coverage and connectivity
Proceedings of the 7th ACM international symposium on Mobile ad hoc networking and computing
Connected sensor cover: self-organization of sensor networks for efficient query execution
IEEE/ACM Transactions on Networking (TON)
Random Coverage with Guaranteed Connectivity: Joint Scheduling for Wireless Sensor Networks
IEEE Transactions on Parallel and Distributed Systems
Stochastic coverage in heterogeneous sensor networks
ACM Transactions on Sensor Networks (TOSN)
Distributed protocols for ensuring both coverage and connectivity of a wireless sensor network
ACM Transactions on Sensor Networks (TOSN)
Movement-assisted sensor redeployment scheme for network lifetime increase
Proceedings of the 10th ACM Symposium on Modeling, analysis, and simulation of wireless and mobile systems
Efficient Placement and Dispatch of Sensors in a Wireless Sensor Network
IEEE Transactions on Mobile Computing
On clustering to minimize the sum of radii
Proceedings of the nineteenth annual ACM-SIAM symposium on Discrete algorithms
Vineyard Computing: Sensor Networks in Agricultural Production
IEEE Pervasive Computing
Distributed Deployment Schemes for Mobile Wireless Sensor Networks to Ensure Multilevel Coverage
IEEE Transactions on Parallel and Distributed Systems
Decomposition of multiple coverings into many parts
Computational Geometry: Theory and Applications
ICDCS '09 Proceedings of the 2009 29th IEEE International Conference on Distributed Computing Systems
Decomposition of Multiple Coverings into More Parts
Discrete & Computational Geometry
Centralized and Clustered k-Coverage Protocols for Wireless Sensor Networks
IEEE Transactions on Computers
Analysis of target detection performance for wireless sensor networks
DCOSS'05 Proceedings of the First IEEE international conference on Distributed Computing in Sensor Systems
An application-specific protocol architecture for wireless microsensor networks
IEEE Transactions on Wireless Communications
Energy-efficient deployment of Intelligent Mobile sensor networks
IEEE Transactions on Systems, Man, and Cybernetics, Part A: Systems and Humans
Coverage in wireless ad hoc sensor networks
IEEE Transactions on Computers
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Coverage is one of the fundamental concepts in the design of wireless sensor networks (WSNs) in the sense that the monitoring quality of a phenomenon depends on the quality of service provided by the sensors in terms of how well a field of interest is covered. It enables the sensors to detect any event that may occur in the field, thus, meeting the application-specific requirements. Several applications require k-coverage, where each point in the field is covered by at least k sensors, which helps increase data availability to ensure better data reliability. Achieving k-coverage of a field of interest becomes a more challenging issue in sparsely deployed WSNs. Though the problem of coverage in WSNs has been well studied in the literature, only little research efforts have been devoted to the case of sparsely deployed WSNs. Thus, in this article, we investigate the problem of k-coverage in sparse WSNs using static and mobile sensors, which do not necessarily have the same communication range, sensing range, and energy supply. Precisely, we propose an optimized, generalized framework for k-coverage in sparsely deployed WSNs, called k-SCHEMES, which exploits sensor heterogeneity and mobility. First, we characterize k-coverage using heterogeneous sensors based on Helly's Theorem. Second, we introduce our energy-efficient four-tier architecture to achieve mobile k-coverage of a region of interest in a field. Third, on top of this architecture, we suggest two data-gathering protocols, called direct data-gathering and forwarding chain-based data-gathering, using the concept of mobile proxy sink. We found that the second data-gathering protocol outperforms the first one. For energy-efficient forwarding, we compute the minimum transmission distance between any pair of consecutive mobile proxy sinks forming the forwarding chain as well as the corresponding optimum number of mobile proxy sinks in this chain. We corroborate our analysis with several simulation results.