A novel secure relay selection strategy for energy-harvesting-enabled Internet of things

Abstract

In this article, we focus on the problem of relay selection for the cooperative cognitive radio-based Internet of things. In such systems, a pair of primary user devices (PUs) can only communicate with each other through a relay. The relay is selected from a set of multi-slot energy-harvesting (EH)-enabled secondary user devices (SUs). The charging and discharging process of an SD's battery is formulated as a finite state Markov chain, and we can derive the corresponding analytical expression of steady-state distribution. Consider the non-authority of SUs, we analyze the outage performance when SUs are trusted and untrusted. When SUs are trusted, we provide the theoretical analysis expression and the lower bound expression for the outage probability. On the contrary, we propose a destination-assisted jamming strategy to secure primary communication if SUs are untrusted. In addition, we propose a Vickrey auction-based EH-enabled relay selection strategy which can be applied to the secondary system. For this auction strategy, SUs without direct links can transmit signals by selecting an EH-enabled SU as a relay. The winning SU in the process of auction can earn reward. Finally, the simulation results verify that the EH-based transmission can obtain excellent system performance without consuming excess energy, and we also study the effect of different parameters on system outage performance.

A Survey of Cooperative Jamming‐Based Secure Transmission for Energy‐Limited Systems

“…A novel minimum bottleneck matching algorithm and a suboptimal relay selection algorithm are proposed for the group lifetime maximization policy. For an EH-enabled secondary system in cooperative cognitive radio-based IoT, the authors of [74] presented a Vickrey auction-based relay selection strategy. This strategy can select an SU from several EH-enabled candidate SUs as a relay node while the unselected SUs keep harvesting energy.…”

Energy Efficient Two-hop D2D Communications Underlay 5G Networks: A Stackelberg Game Approach

“…Papers [12,13] use the traversal method to cluster terminals. However, the computational complexity is high.…”

Secure Information Transmissions in Wireless-Powered Cognitive Radio Networks for Internet of Medical Things

“…Considering information security in cognitive radio-based IoT systems, Salameh et al [27] presented a novel algorithm for channel allocation with time-sensitive data under the scenario of jamming attacks. A secure relay selection scheme based on channel state information and battery state information was proposed for energy harvesting-based cognitive radio networks in IoT networks [28].…”

“…Unlike the abovementioned literates [27,28], we consider an actual application scenarios for sanatorium or hospital under the cognitive radio-based IoTM networks to protect the patients' sensitive medical information. Consider an indoor environment for sanatorium or hospital, where the PT intends to transmit its sensitive medical data to the PR, while the ST performs data monitoring and transfer to the SR.…”