COMMUNICATIONS THEORIES

1. Physical Layer Security with Its Applications in 5G Networks: A Review
2. Artificial Noise Aided Polar Codes for Physical Layer Security
3. Secure Transmission Scheme Based on Dual-Thresholds for Simultaneous Wireless Information and Power Transfer

SPECIAL ISSUE_Guest Editorial

1. 5G ENTERING INTO A NEW ERA

SIGNAL PROCESSING FOR COMMUNICATIONS

1. Secure Spectral-Energy Efficiency Tradeoff in Random Cognitive Relay Networks
2. Flexible Uplink MU-MIMO Scheduling in Unlicensed Spectrum
3. Energy Efficient Constrained Shortest Path First-Based Joint Resource Allocation and Route Selection for Multi-Hop CRNs
4. Resource Allocation in D2D-Aided High-Speed Railway Wireless Communication Systems: A Matching Theory Approach
5. Multi-User Detection for Spatial Modulation toward 5G Wireless Communications

NETWORKS

1. Clustering of Virtual Network Function Instances Oriented to Compatibility in 5G Network
2. Contract-Based Content Delivery in 5G Converged Networks
3. Radio Access Network Slicing Based on C/U Plane Separation

EMERGING TECHNOLOGIES & APPLICATIONS

1. On Uplink Non-Orthogonal Multiple Access for 5G:Opportunities and Challenges
2. Symbol Error Rate Performance Analysis of Non-Orthogonal Multiple Access for Visible Light Communications
3. Design and Implementation of a TDD-Based 128-Antenna Massive MIMO Prototype System