Recent developments and success with Internet of Things (IoT) have led to a renewed interest in wireless sensor network (WSN) research, as WSN is a key component for the development in IoT. One particular ongoing research focus is on ensuring the security of the sensor network used in an IoT setting. For instance, the security and reliability in the dynamic update process of WSN is essential for communication security in smart cities. In addition, the security level of each node in WSN will influence the security of the whole network, and consequently IoT devices and its applications. In order to enhance the security level of WSN, a large number of protocols, architectures, system designs and algorithms have been designed to provide a higher security level for WSNs.

Another more recent research and technological trend is Blockchain, partly due to Bitcoin. The characteristics of blockchain, such as decentralized operation, trustless management, and reliability, can be leveraged in WSN / IoT security. In other words, there are plenty of research opportunities in this area (i.e., Blockchain-enabled, -facilitated, or -based security solutions for WSN and IoT). Hence, this special issue seeks to solicit and publish current state-of-art advances, particularly those that bridge academia, industry and government, in a smart city context.

Topics of particular interest include, but not limited to:

Blockchain-enabled communication techniques Blockchain-based mobile sensing architectures, framework, and models Security and privacy issues in blockchain-based mobile sensing Secure communications in blockchain-enabled distributed sensing Trust management in blockchain communications Critical techniques in blockchain-enhanced communications for smart grid Blockchain-enhanced mobile sensing in smart city Blockchain-enhanced communications in 5G Blockchain-enhanced communications in cloud/fog/edge computing
High quality survey papers on the above topics are also welcome. Prospective authors are welcome to contact the Guest Editors to ascertain interest.

Submitted papers must be original and must not be under consideration in any other venue(s). All submitted papers will be reviewed by at least three expert reviewers and selected based on their originality, significance, relevance, and clarity of presentation.

All manuscripts and any supplementary material should be submitted through Elsevier Editorial System (EVISE), available at: https://www.evise.com/evise/jrnl/YJPDC. The authors must select "VSI: BlockchainSecComSmartCity" when they reach the "Article Type" in the submission process.

Guest Editors
Kim-Kwang Raymond Choo, The University of Texas at San Antonio, USA
Keke Gai, Beijing Institute of Technology, China
Luca Chiaraviglio, University of Rome Tor Vergata, Rome, Italy