Title	Virtual Machine Placement Methods using Metaheuristic Algorithms in a Cloud Environment ? A Comprehensive Review
Author	Deafallah Alsadie
Citation	Vol. 22  No. 4  pp. 147-158
Keywords	Cloud computing, Virtualization, VM Placement, Metaheuristic Algorithms.

Title	Key Challenges of Mobility Management and Handover Process In 5G HetNets
Author	Sultan Alotaibi
Citation	Vol. 22  No. 4  pp. 139-146
Keywords	Mobility management, handover, 5G, HetNets.

Title	Enhancement OLSR Routing Protocol using Particle Swarm Optimization (PSO) and Genrtic Algorithm (GA) in MANETS
Author	Udaya Kumar Addanki, Hemantha Kumar
Citation	Vol. 22  No. 4  pp. 131-138
Keywords	MANET, OLSR, Particle Swarm Optimization, Multipoint Relay, Genetic Algorithm.

Title	Time Series Crime Prediction Using a Federated Machine Learning Model
Author	Mustafa Abdul Salam, Sanaa Taha, and Mohamed Ramadan
Citation	Vol. 22  No. 4  pp. 119-130
Keywords	Federated Learning (FL), Deep Learning, Tensor- Flow Federated (TFF), Keras, Data Privacy, Long Short-Term Memory (LSTM).