Title:Sub-1 GHz RF-based Energy-efficient Sensor Node for Secure Communication in Low-power IoT and Embedded Applications
Volume: 14
Issue: 4
Author(s): Ishfaq Sultan*Mohammad Tariq Banday
Affiliation:
- Department of Electronics and Instrumentation Technology, University of Kashmir, Srinagar, 190006, India
Keywords:
Lightweight cryptography, digital processing, internet of things, sensor nodes, advanced encryption standard, heterogeneous multicore sensing architecture.
Abstract:
Background: The Internet of Things (IoT) devices consist of a microcontroller unit for
data processing, a low-power wireless radio module for data transmission, and various sensors for
data collection. The sensor nodes and processing devices used in the Internet of Things are
resource-constrained, with power consumption and security being the two most critical parameters.
Objectives: This paper addresses the challenges of power consumption and security in IoT
scenarios. It presents a low-power and secure heterogeneous multicore sensing architecture
designed for low-power IoT and wireless sensor networks. The architecture comprises a sensing
and control subsystem, an information processing unit, and a wireless communication module.
Methods: The architecture uses a microcontroller unit based on ARM Cortex M4, a low-power
sub-1 GHz RF-compliant communication radio, and a few sensors. The proposed architecture has
been implemented and tested using the Contiki Operating System.
Results: The implemented sensor node architecture demonstrated performance efficiency, lower
energy consumption, and higher security.
Conclusion: By leveraging efficient power management, data transmission strategies, and
cryptographic security, the architecture contributes to developing energy-efficient and secure IoT
devices.