IPDPS '03 Proceedings of the 17th International Symposium on Parallel and Distributed Processing
IPDPS '05 Proceedings of the 19th IEEE International Parallel and Distributed Processing Symposium (IPDPS'05) - Workshop 12 - Volume 13
Barrier coverage with wireless sensors
Proceedings of the 11th annual international conference on Mobile computing and networking
Slip surface localization in wireless sensor networks for landslide prediction
Proceedings of the 5th international conference on Information processing in sensor networks
Wakeup scheduling in wireless sensor networks
Proceedings of the 7th ACM international symposium on Mobile ad hoc networking and computing
Underground structure monitoring with wireless sensor networks
Proceedings of the 6th international conference on Information processing in sensor networks
Iso-Map: Energy-Efficient Contour Mapping in Wireless Sensor Networks
ICDCS '07 Proceedings of the 27th International Conference on Distributed Computing Systems
Rendered path: range-free localization in anisotropic sensor networks with holes
Proceedings of the 13th annual ACM international conference on Mobile computing and networking
Designing localized algorithms for barrier coverage
Proceedings of the 13th annual ACM international conference on Mobile computing and networking
Avoiding Energy Holes in Wireless Sensor Networks with Nonuniform Node Distribution
IEEE Transactions on Parallel and Distributed Systems
IEEE Communications Magazine
Journal of Network and Computer Applications
MGR: a multicandidate greedy routing scheme in wireless sensor networks
Proceedings of the 4th International Conference on Uniquitous Information Management and Communication
Hi-index | 0.00 |
Applications in wireless sensor networks (WSNs) experience the energy hole problem, i.e., nodes closer to the base station drain their energy much faster than nodes that are far from the base station; accordingly, the network lifetime is reduced. Recently, Medidi and Zhou have proposed a DDC approach to address the energy hole problem by assigning different duty cycles for nodes in different coronas. However, they do not consider how to balance the energy consumption between nodes in a corona and guarantee high packet delivery. In this paper, we describe TTNS, a novel Two Tiered Network Structure approach to prolong the network lifetime. TTNS defines the network as two tiers of coronas and sub-corona slices. With the proposed network structure, we balance energy consumption of nodes not only in every corona, but also in every slice within each corona. Moreover, a high packet delivery to the base station is also achieved by employing our Clockwise Packet Routing method (an add-on algorithm for TTNS). Comprehensive computer simulations show that our schemes, TTNS and CWPR, balance the energy consumption between the nodes in the network; hence, they can extend network lifetime by 19.5% longer than DDC and maintain an average packet delivery ratio up to 87.4%.