Dynamic channel estimation-aware routing protocol in mobile cognitive radio networks for smart IIoT applications  

作　　者：Qusay M.Salih Md Arafatur Rahman A.Taufiq Asyhari Muhammad Kamran Naeem Mohammad Patwary Ryan Alturki Mohammed Abdulaziz Ikram 

机构地区：[1]Faculty of Computing,Universiti Malaysia Pahang,26300,Gambang,Pahang,Malaysia [2]School of Engineering,Computing and Mathematical Sciences,University of Wolverhampton,UK [3]Data Science Program,Monash University,Indonesia,and Birmingham City University,B47XG,UK [4]Department of Information Science,College of Computer and Information Systems,Umm Al-Qura University,Saudi Arabia [5]Computer Science Department,Al Jumoum University College,Umm Al-Qura University,Saudi Arabia

出　　处：《Digital Communications and Networks》2023年第2期367-382,共16页数字通信与网络（英文版）

摘　　要：Cognitive Radio Networks(CRNs)have become a successful platform in recent years for a diverse range of future systems,in particularly,industrial internet of things(IIoT)applications.In order to provide an efficient connection among IIoT devices,CRNs enhance spectrum utilization by using licensed spectrum.However,the routing protocol in these networks is considered one of the main problems due to node mobility and time-variant channel selection.Specifically,the channel selection for routing protocol is indispensable in CRNs to provide an adequate adaptation to the Primary User(PU)activity and create a robust routing path.This study aims to construct a robust routing path by minimizing PU interference and routing delay to maximize throughput within the IIoT domain.Thus,a generic routing framework from a cross-layer perspective is investigated that intends to share the information resources by exploiting a recently proposed method,namely,Channel Availability Probability.Moreover,a novel cross-layer-oriented routing protocol is proposed by using a time-variant channel estimation technique.This protocol combines lower layer(Physical layer and Data Link layer)sensing that is derived from the channel estimation model.Also,it periodically updates and stores the routing table for optimal route decision-making.Moreover,in order to achieve higher throughput and lower delay,a new routing metric is presented.To evaluate the performance of the proposed protocol,network simulations have been conducted and also compared to the widely used routing protocols,as a benchmark.The simulation results of different routing scenarios demonstrate that our proposed solution outperforms the existing protocols in terms of the standard network performance metrics involving packet delivery ratio(with an improved margin of around 5–20%approximately)under varying numbers of PUs and cognitive users in Mobile Cognitive Radio Networks(MCRNs).Moreover,the cross-layer routing protocol successfully achieves high routing performance in finding a robus

关 键 词：Channel selection Cross-layer design Mobile cognitive radio networks Routing protocol IIoT applications 

分 类 号：TN92[电子电信—通信与信息系统]