Energy-Aware Hierarchical Topology Control for Wireless Sensor Networks with Energy-Harvesting Nodes | Zendy

Ikjune Yoon | Zendy; Dong Kun Noh | Zendy; Heonshik Shin | Zendy

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Energy-Aware Hierarchical Topology Control for Wireless Sensor Networks with Energy-Harvesting Nodes

Author(s) -

Ikjune Yoon,

Dong Kun Noh,

Heonshik Shin

Publication year - 2015

Publication title -

international journal of distributed sensor networks

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 0.324

H-Index - 53

eISSN - 1550-1477

pISSN - 1550-1329

DOI - 10.1155/2015/617383

Subject(s) - computer science , wireless sensor network , computer network , node (physics) , energy harvesting , topology control , energy (signal processing) , key distribution in wireless sensor networks , network topology , topology (electrical circuits) , transmission (telecommunications) , efficient energy use , distributed computing , wireless , wireless network , telecommunications , statistics , mathematics , structural engineering , electrical engineering , combinatorics , engineering

The nodes in a wireless sensor network (WSN) are often clustered to improve the efficiency of data transmission, but this can cause an imbalance in the energy available at each node. This impairs the transmission capability of some nodes and hence reduces network connectivity. This imbalance worsens as nodes become defunct. We propose a multilayer topology for long-term hybrid WSNs which contain both battery-powered and energy-harvesting nodes. Each node periodically selects its own layer, depending on the energy it has available, in order to balance energy levels and maintain network connectivity. Simulations show that this scheme improves the delivery of data across a WSN.

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