Prof. Dr. Fadi Al-Turjman received his Ph.D. in computer science from Queen's University, Kingston, Ontario, Canada, in 2011. He is a full professor and a research center director at Near East University, Nicosia, Cyprus. Prof. Al-Turjman is a leading authority in the areas of smart/intelligent, wireless, and mobile networks' architectures, protocols, deployments, Multimedia analysis and performance evaluation. His publication history spans over 250 publications in journals, conferences, patents, books, and book chapters, in addition to numerous keynotes and plenary talks at flagship venues. He has authored and edited more than 25 books about cognition, security, and wireless sensor networks' deployments in smart environments, published by Taylor and Francis, Elsevier, and Springer. He has received several recognitions and best papers' awards at top international conferences. He also received the prestigious Best Research Paper Award from Elsevier Computer Communications Journal for the period 2015-2018, in addition to the Top ResearcherAward for 2018 at Antalya Bilim University, Turkey. Prof. Al-Turjman has led a number of international symposia and workshops in flagship communication society conferences. Currently, he serves as an associate editor and the lead guest/associate editorfor several well reputed journals, including the IEEE Communications Surveys and Tutorials (IF 22.9) and the Elsevier Sustainable Cities and Society (IF 4.7).

Introduction.- Section A - Introduction to Heterogenous Networks & Critical Issues.- Heterogeneous networks.- Challenges in the deployment of heterogeneous wireless networks.- Load balancing in heterogeneous wireless networks.- Critical interface management in heterogeneous wireless networks.- Network selection and interface management in heterogeneous IoT environment.- Section - B Heterogeneous Sensor Networks.- Heterogeneous wireless sensor network structure.- Critical routing protocols and clustering algorithms for HWSNs.- Energy efficient protocol for heterogeneous wireless sensor networks.- Management platform for heterogeneous wireless sensor networks.- Heterogeneous wireless sensor network deployment and topologies.- Section-C Real-Time Performance Issues in Heterogeneous Networks.- Heterogeneous and multi-task wireless sensor networks.- Multi-level scheduling for heterogeneous wireless sensor networks.- Critical localization criteria in heterogeneous wireless sensor networks.- Critical security issues in heterogeneous wireless sensor networks.- Section - D Applications of Heterogeneous Networks in Diverse Fields.- Criticality of HWSNs in smart cities.- Implementation of heterogeneous wireless network for industrial applications.- Mobile healthcare applications over heterogeneous networks.- Convergence of Heterogeneous Wireless Networks for 5G and Beyond.- Conclusion.