Secure Precise Clock Synchronization for Interconnected Body Area Networks
Por:
Sanchez, DS, Alonso, L, Angelidis, P, Verikoukis, C
Publicada:
1 ene 2011
Resumen:
Secure time synchronization is a paramount service for wireless sensor networks (WSNs) constituted by multiple interconnected body area networks (BANs). We propose a novel approach to securely and efficiently synchronize nodes at BAN level and/or WSN level. Each BAN develops its own notion of time. To this effect, the nodes of a BAN synchronize with their BAN controller node. Moreover, controller nodes of different BANs cooperate to agree on a WSN global and/or to transfer UTC time. To reduce the number of exchanged synchronization messages, we use an environmental-aware time prediction algorithm. The performance analysis in this paper shows that our approach exhibits very advanced security, accuracy, precision, and low-energy trade-off. For comparable precision, our proposal outstands related clock synchronization protocols in energy efficiency and risk of attacks. These results are based on computations.
Filiaciones:
Sanchez, DS:
Pompeu Fabra Univ, Dept Informat & Commun Technol, Barcelona 08018, Spain
Alonso, L:
Univ Politecn Cataluna, Dept Signal Theory & Commun, Barcelona 08034, Spain
Angelidis, P:
Univ Western Macedonia, Dept Engn Informat & Telecommun, Kozani 50100, Greece
Verikoukis, C:
Telecommun Technol Ctr Catalonia, Intelligent Energy Area, Barcelona 08860, Spain
Gold, Green Published
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