Title	A Maximum A Posterior Probability based Multiuser Detection Method in Space based Constellation Network
Author	Kenan Zhang, Xingqian Li, Kai Ding, Li Li
Citation	Vol. 22  No. 12  pp. 51-56
Keywords	Multiuser detection; MAP; BCJR algorithm; Space based constellation network

Title	Secure and Scalable Blockchain-Based Framework for IoT- Supply Chain Management Systems
Author	Omimah Alsaedi, Omar Batarfi, Mohammed Dahab
Citation	Vol. 22  No. 12  pp. 37-50
Keywords	Blockchain, Supply Chain, SCM, IoT, Confidentiality

Title	Significance and Research Challenges of Defensive and Offensive Cybersecurity in Smart Grid
Author	Hana Mujlid
Citation	Vol. 22  No. 12  pp. 29-36
Keywords	Smart grid; IT infrastructure; Cyber attacks; Defensive cyber security; Offensive cyber security; Cyber challenges

Title	The Impact of Applications of Internet of Things on Practice of Knowledge Management in Organizations: the Mediating Role of Employees’ Engagement
Author	Hisham O. Mbaidin
Citation	Vol. 22  No. 12  pp. 19-28
Keywords	Applications of Internet Of Things, Practice Of Knowledge Management, Employees’ Engagement.