Dynamic transmission power switch for fast data collection in duty-cycled sensor networks. (2017)

• Record Type: Journal Article
• Authors: Fan, Zuzhi
• Is Part Of: International journal of ad hoc and ubiquitous computing. Volume 24:Number 3(2017)
• Page Start: 173
• Page End: 182
• Publication Date: 2017
• Subjects: WSNs -- wireless sensor networks -- data collection -- transmission power switch -- delay optimisation -- power control -- multi-parent forwarding -- simulation -- delivery delay -- energy consumption -- network lifetime; Ubiquitous computing -- Periodicals; Embedded computer systems -- Periodicals; Electronic data processing -- Distributed processing -- Periodicals; Wireless communication systems -- Periodicals; Computer architecture -- Periodicals; 004.2
• Languages: English
• ISSNs: 1743-8225

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.