Wake-up radio implementation for internet of things. (2016)

• Record Type: Journal Article
• Authors: Valta, Mikko; Koskela, Pekka; Hiltunen, Jouni
• Is Part Of: International journal of autonomous and adaptive communications systems. Volume 9:Number 1/2(2016)
• Page Start: 85
• Page End: 102
• Publication Date: 2016
• Subjects: dual-radio architecture -- wake-up radio networks -- WUR -- energy efficiency -- IoT -- internet of things -- RPL routing -- sensor networks -- energy consumption -- node response time -- energy saving; Adaptive computing systems -- Periodicals; Wireless communication systems -- Periodicals; Computer networks -- Periodicals; 004.6
• Languages: English
• ISSNs: 1754-8632

Abstract

The internet of things (IoT) is a topical area of research in which the energy-efficiency of the resource-constrained IoT devices is important. Wake-up radio is an interesting technology allowing significant cut-down of IoT devices' power consumption. It allows long sleep mode periods while enabling real-time controllability of the nodes. This paper proposes a solution for applying IETF standard protocols to the wake-up radio equipped sensor network. The complete wake-up radio equipped system, in which the nodes work as IoT service providers, was built to inspect energy consumption and response time of the nodes. Comparing between IP-based single radio and wake-up radio networks the results show that notable energy savings can be achieved with wake-up radio on both single-hop and multi-hop scenarios with predictable response times. On a packet rate of one packet per minute, the energy saving was 86% on a single-hop scenario and 45 to 79% on a three-hop scenario. Based on our implementation we also proposed two improvements for RPL routing scheme which enables more robust routing operation.