Smart communications are the concept in which smart appliances and devices are integrated into an application that runs in a smart hand-held device. The residents of a smart home can have complete control over their home’s electronic gadgets using wireless communications. These technologies can help people control gadgets in the home/office remotely and often simultaneously, which increases convenience and reduces time spent on these tasks. However, problems can arise in the security systems associated with these smart devices; security may be compromised when there are loopholes or human mistakes. When security credentials are lost, overall security can also be lost. This is because smart technology is made up of plenty of devices that are integrated with Internet of Things (IoT) technology and the cloud. This environment can introduce many security issues, as discussed in this text. Blockchain is a promising technology that operates in a decentralized environment to protect devices and the data collected by devices from security and privacy issues by using wireless communication technology. Blockchain-enabled IoT can be used to achieve end-to-end security. Blockchain technology is already used in wireless sensor/communication networks to estimate and predict house data and civil structures.

IoT-integrated innovative applications like smart homes present unique security and privacy challenges. Scalability is the main problem as the current centralized IoT platforms have message routing mechanisms that create a bottleneck in scaling up too many devices used in IoT. As many devices are participating in generating data, such a setup may also be subjected to Distributed Denial of Service (DDoS) attacks. Lack of data standards is another cause of concern as it leads to interoperability problems. Blockchain technology for IoT and wireless communications offers a promising solution for smart devices. These technologies can provide end-to-end security and overcome the aforementioned problems. The usage of open-standard distributed IoT solutions can solve many problems that are associated with centralized approaches. Blockchain technology is nothing but a distributed ledger of transactions. It offers direct communication to connected devices. Such devices collect data, and all legitimate participants can access said data. Thus, decentralized blockchain networks can provide improved security for IoT-based solutions.

About the Author

Dr. G. Ramesh received a Ph.D. degree in Computer Science and Engineering from JNT University Anantapur, Ananthapuaramu, Andhra Pradesh in 2018, and M.Tech. Degree from the JNTUA College of Engineering, Ananthapuramu, in 2009. He is currently working as a Associate Professor at CSE Department, Gokaraju Rangaraju Institute of Engineering & Technology (Autonomous), Hyderabad- 500090, Telangana State, India. He has more than 11 years of experience in teaching and 6 years of experience in research. Besides, he has published 35 research articles in leading journals (SCI, SCOPUS & DBLP), conference proceedings, 1 text book and 3 international book chapters. He is having 78 citations with an h-index 4 for his research publications. He is the reviewer for reputed International Conferences. He has organized & attended various FDPs and Conferences/workshops. He also worked as Coordinator for conducting course "Database Application Software and Database Design", for UG and PG students of JNTUA CE, Ananthapuramu in collaboration with Electronic and ICT Academy, NIT Warangal and IIT Madras, Chennai. His current research interests include Software Engineering, Machine Learning, Image Processing and Big Data Analytics.

Dr. Budati Anil Kumar received a Ph.D. Degree in Electronics and Communication Engineering from GITAM Deemed to be University, Hyderabad in 2019, and M.Tech. Degree from the LBRCE (JNTUK Kakinada), Mylavaram in 2010. B.Tech Degree from VYCET (JNTU Hyderabad), Chirala in 2007. He is currently working as an Associate Professor in ECE Department, Koneru Lakshmaiah Education Foundation, Hyderabad, India-500075, Telangana State, India. He has more than 13 years of experience in teaching and six years of experience in research. Besides, he has published 50 research articles in highly reputed publisher journals and conferences whose indexing in SCIE, SCOPUS, etc. He acts as Guest Editor for Peer-to-Peer Networking Journal (Springer Publisher), Cluster Computing Journal (Springer Publisher), IJPCC (Emerald Publisher), IET CAAI Transactions on Intelligence Technology, IET Networks, SWCC Journal (Bentham science Publisher) and IJSCC (Inderscience Publisher), IJUWBCS (Inderscience Publisher) Journals. He has authored/edited textbooks entitled "Cognitive Radio: Computing Techniques, Network Security and challenges" which is published by Taylor and Francis’s publisher, U.K., and "Cognitive Computing Models in Communication Systems" which is published by Wiley & Scrivener Publishing, U.K. He is a Senior member of IEEE, Member of IEI and Fellow of IETE since 2019 and has served as a reviewer for various international journals and conferences. He has conducted various FDPs as a coordinator, which is funded by AICTE New Delhi, DST New Delhi and other agencies. He has attended various FDPs and Conferences/workshops in India and abroad and also acted as speaker/session chair in various FDPs and Conferences. He was also serving as a supervisor for Ph.D research scholars under multiple Universities in India. His current research interests include Cognitive Radio Networks, Software Defined Radio Networks, Artificial Intelligence, 6G emerging Technologies, Mulsemedia Computing and UAVs in 5G and 6G.

Dr. J Praveen has done his PhD from Osmania University in power electronics, Hyderabad. His research work carried out at BHEL Research and Development Center with support of University Grants Commission (UGC) junior research fellowship (JRF). He is contributing to a major research area in Power Electronics and has published more than 80 research papers in reputed International and National Journals and Conferences. He is Registered PhD Guide at Department of Electrical and Electronics Engineering, J.N.T University, Hyderabad. He is presently guiding eight scholars of PhD. He has International Certification on "High Impact Teaching Skills" by Dale Carnegie & Associates Inc. Trainers (USA), Mission 10x, Wipro Technologies. He has Cambridge International Certification for Teachers and Trainers (CICTT) with Distinction. He is a Senior Member IEEE, MIE – Life Member, ISTE. He has Honor Code Certificate in course Circuits and Electronics 6.002X by Massachusetts Institute of Technology, USA (MIT) with ‘A’ Grade through edx. He received best teacher award and best project award from ISTE, He is a Certified Labview Associate Developer form NI,USA

Dr. K.Lakshmi Prasad obtained Ph. D in Water Resources Engineering from IIT Bombay (2000), M. Tech in Hydraulic Engineering from IIT Bombay (1985), B. Tech in Civil Engineering from JNTU College of Engineering, Anantapur, AP (1983). Handled two sponsored research and development projects worth of 3.8 crores sponsored by Dept of Science & Technology, MHRD, Govt of India 2014-18 as Principal Investigator. Completed 33 years of service in teaching and research. Published 27 papers in International refereed Journals, International and National conferences. Fellow of Institution of Engineers (India)- FIE, Member of Indian Society for Technical Education- MISTE. He Served as Principal, GITAM Institute of Technology, GITAM Deemed to be University, Visakhapatnam from 2012-2019. Served as Member, Board of Management, GITAM Deemed to be University, Visakhapatnam from 2012-2019. Served as Member, Academic Council, GITAM Deemed to be University, Visakhapatnam from 2012-2019. Served as Dean, GITAM Institute of Technology and introduced Choice based credit system with outcome based educational objectives for UG and PG courses of Engineering in 2015-16. Served as Chairman, TEQIP-II (1.2), a world bank funded project of MHRD, Govt., of India during 2012-2017. Served as coordinator for TEQIP-Phase I, Bapatla Engineering College, Bapatla, A.P., during 2003-2009. Served as Member, Academic Council, Bapatla Engineering college, Bapatla, AP during 2011-17. Served as Principal of BVSR Engineering College, Chimakurthy, Prakasam Dt.AP during 2010-12. Served as Principal, Bapatla Engineering College, Bapatla, AP during 2008-2010. Served as Chairman, Board of studies in Civil Engineering, Acharya Nagarjuna University, Nagarjuna Nagar, Guntur, AP and also as Member, BOS in Civil Engineering of Acharya Nagarjuna University.

Mohammad Kamrul Hasan completed Doctor of Philosophy (Ph.D.) in Communication and Network Engineering from the faculty of Engineering, International Islamic University, Malaysia in 2016. He was awarded and fully sponsored by the Malaysian International Scholarship (MIS) for his entire Ph.D. program from the Ministry of Higher Education Malaysia. He completed his MSc in Communication Engineering studies from the area of Communication and Network Engineering, International Islamic University, Malaysia. Currently Dr. Kamrul is working as Assistant Professor (applied for the associate professor position) at the center for cyber security, faculty of information science and technology, the National University of Malaysia (UKM), world QoS ranking 141. In research, he demonstrated excellent outcomes and received the Gold medal award. For the publication, he awarded the best paper award for many research papers. He has been published 99 high impact factor journals recorded in Publon/Web of Science Researcher ID. Dr. Kamrul has been experienced lead engineer for the supervision, installation, setup, and fault handling of PLC, WAMS, soft drive, controllers, MUDUBUS, and Merging Units. Fault handling and programming of the ladder logic design for the industrial LAN connected Programmable Logic Controller (PLC) devices. Implementation of Landis+Gyr G370 meter configuration for the Dynamic Load Management of Bogra 50MW power plant. After Five years of dedicated service record, he resigns from the position in 2009 for his higher studies. Dr. Kamrul is a specialist well versed with elements on cutting-edge Information centric network, smart grid Communication Systems and Technologies, Telecommunications, Sensor Systems and Industrail Internet of Things, ICT Radio Communication, and Data Networking, and microcontroller-based electronic devices. Dr. Kamrul is a Senior Member of the Institute of Electrical and Electronics Engineers (SMIEEE- 90852712), Member of Institution of Engineering and Technology (MIET-1100572830), and the member of Internet Society (198312). Dr. Kamrul is a certified professional technologist (P.Tech.), Malaysia. He also served the IEEE student branch as chair from 2014 to 2016. He has actively participated in many events/workshops/training for the IEEE and IEEE humanity programs in Malaysia. His application for the professional Engineer (CENG) is in progress.

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