The impact of one-time energy costs on network lifetime in wireless sensor networks

• Published in: IEEE communications letters 2009-12, Vol.13 (12), p.905-907
• Main Authors: Bicakci, K., Gultekin, H., Tavli, B.
• Format: Article
• Language: English
• Subjects: Applied sciences; Costs; Cryptographic protocols; Cryptography; Data security; Detection, estimation, filtering, equalization, prediction; Electronics; Energy consumption; Energy costs; Exact sciences and technology; Information, signal and communications theory; Intelligent sensors; Large-scale systems; Linear programming; mixed binary linear programming; network lifetime; Networks; one-time energy cost; Optimization; Power generation economics; Public key cryptography; Sensors; Services and terminals of telecommunications; Signal and communications theory; Signal, noise; Simulation; Systems, networks and services of telecommunications; Telecommunications; Telecommunications and information theory; Telemetry. Remote supervision. Telewarning. Remote control; Wireless communication; Wireless sensor networks
• ISSN: 1089-7798; 1558-2558
• DOI: 10.1109/LCOMM.2009.12.091331

In this letter, we present a mixed binary linear programming framework to investigate the impact of one-time energy costs on the overall system lifetime in wireless sensor networks. We use public-key cryptography as our representative one-time initialization operation. We show that the effect of public-key cryptography on optimal routes selection depends on the ratio of electronics energy to amplifier energy. The simulation results also reveal that the impact of public key cryptography on the maximum achievable lifetime of a sensor network is not negligible and it does not steadily increase with the size of the network.