The technical scope of VTC2018-Spring includes: Ad-hoc, Mesh, and Sensor Networks Antennas and Propagation and RF Design Cognitive Radio and Spectrum Sensing Cooperative Communications, Distributed MIMO and Relaying Mobile Networks, Applications and Services Multiple Antenna Systems and Services Satellite Networks, Positioning Technologies, Localization and Navigation Transmission Technologies and Communication Theory Transportation, Vehicular Networks, and Vehicular Electronics and Telematics; Wireless Access Wireless Networks and Security Health, Body-Area and Medical Device Networks Green Networks Medium access control and routing protocols Narrowband, wideband and ultra-wideband PHY and MAC layer design Channel modeling, equalization, synchronization, modulation and coding OFDM, CDMA, WiMAX LTE Advanced ITS, Car-to-car, and Car-to-X.