Joint Security-Reliability Performance Optimization in Low-Latency Industrial IoT Networks

IEEE Wireless Communications Letters, vol. 14, pp. 1381–1385

Abstract

In this letter, we study an Industrial Internet of Things network comprising two legitimate sensors and a single eavesdropper, where both reliability and security of transmissions must be guaranteed. By addressing the tradeoff between reliability and security, we provide a joint optimization design to simultaneously maximize the joint security-reliability performance for both sensors via blocklength allocation and redundant bits selection. Both an optimal solution and a low-complexity solution are provided for the formulated dual-objective optimization problem. First, we transform the problem into an equivalent Pareto optimization one with an established feasible set and provide an integer-programming based solution. Subsequently, noting the high complexity of the design introduced by the integer-programming process, an efficient alternative search based approach is further proposed following the convexity characterization on relaxed Pareto optimization problem and the introduction of coding rate as a substitute for redundant bits. Numerical results validate our analytical results and demonstrate the impact of redundant bits and blocklength on the joint security-reliability performance.

Authors 4

1. Jie Wang

   Wuhan University

   Affiliation as printed

   School of Electronic Information, Wuhan University, Wuhan, China

2. Yao Lin Zhu Aachen Chair of INDA

   RWTH Aachen University

   Affiliation as printed

   INDA, RWTH Aachen University, Aachen, Germany

   chair of INDA, RWTH Aachen University, Aachen, Germany

3. Yulin Hu

   Wuhan University

   Affiliation as printed

   School of Electronic Information, Wuhan University, Wuhan, China

4. Anke Schmeink Aachen Chair of INDA

   RWTH Aachen University

   Affiliation as printed

   INDA, RWTH Aachen University, Aachen, Germany

   chair of INDA, RWTH Aachen University, Aachen, Germany