Title: Dynamic transmission power switch for fast data collection in duty-cycled sensor networks

Authors: Zuzhi Fan

Addresses: Department of Mathematics, Jinan University, Guangzhou 510632, China

Abstract: Battery-powered sensor networks are often duty-cycled to conserve nodes energy and prolong network lifetime. In such intermittently-connected networks, the waiting time over multi-hop data forwarding dominates delivery latency, which is the main challenge and unacceptable for delay-sensitive applications. In this work, we address the optimisation problem for duty-cycled sensor network with transmission power control. In particular, we propose dynamic transmission power switch (DTPS), a cross-layer approach which jointly considers power control with multi-parent forwarding for the fast data collection. In DTPS, each node dynamically selects a sequence of transmission pairs to deliver data packets. Extensive simulation results show that our scheme can reduce both delivery delay and energy consumption for data collection applications.

Keywords: WSNs; wireless sensor networks; data collection; transmission power switch; delay optimisation; power control; multi-parent forwarding; simulation; delivery delay; energy consumption; network lifetime.

DOI: 10.1504/IJAHUC.2017.082517

International Journal of Ad Hoc and Ubiquitous Computing, 2017 Vol.24 No.3, pp.173 - 182

Received: 16 Apr 2014
Accepted: 20 Oct 2014
Published online: 28 Feb 2017 *

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