Senses Lab

SEnsors NetworkS and Embedded Systems Laboratory

Center for Cyber Intelligence and Information Security

A Novel wake-up Receiver with Addressing Capability for Wireless Sensor Nodes

Research Area: Design, evaluation and test of complete solutions for Green Wireless Sensor Networks Year: 2014
Type of Publication: In Proceedings Keywords: wake-up radio; wireless sensor networks; communication stack; energy harvesting
Authors: Chiara Petrioli; Dora Spenza; Pasquale Tommasino; Alessandro Trifiletti
Book title: Proceedings of IEEE DCoSS 2014
Pages: 18-25
Address: Marina Del Rey, USA
Month: May 26-28
Emerging low-power radio triggering techniques for wireless motes are a promising approach to prolong the lifetime of Wireless Sensor Networks (WSNs). By allowing nodes to activate their main transceiver only when data need to be transmitted or received, wake-up-enabled solutions virtually eliminate the need for idle listening, thus drastically reducing the energy toll of communication. In this paper we describe the design of a novel wake-up receiver architecture based on an innovative pass-band filter bank with high selectivity capability. The proposed concept, demonstrated by a prototype implementation, combines both frequency-domain and time-domain addressing space to allow selective addressing of nodes. To take advantage of the functionalities of the proposed receiver, as well as of energy-harvesting capabilities modern sensor nodes are equipped with, we present a novel wake-up-enabled harvesting-aware communication stack that supports both interest dissemination and convergecasting primitives. This stack builds on the ability of the proposed WuR to support dynamic address assignment, which is exploited to optimize system performance. Comparison against traditional WSN protocols shows that the proposed concept allows to optimize performance tradeoffs with respect to existing low-power communication stacks.
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