OFDM Multiple Antennas Cognitive Radio Relay CDMA Synchronization Channel Estimation Spectrum Sharing Interference Cancellation Spectrum Sensing Neural Networks Full duplex Resource Allocation Stochastic Geometry Equalizer Bi-Directional Feedback Heterogeneous Networks Femtocell Energy Harvesting Device-to-Device (D2D) SINR mismatch problem Ultra-dense small cell networks Cell Search FBMC Idle cells Spectral efficiency HetNet Correlated MIMO sensing duration Simultaneous Sensing and Transmission bursty traffic model mode selection multi-spectral transmission capacity (TC) UWB automatic repeat request (ARQ) Cognitive relay networks selection diversity full-duplex cellular full-duplex relay in-band full-duplex system self-interference cancellation Two-way communications Bi-directional full-duplex Channel estimation error Ultra-dense small cell Shortened TTI Heterogeneous channel estimation capability outage probability Handoff OQAM Latency Cellular networks NOMA LTE-TDD UL grant free Cross-link interference Vehicular and wireless technologies Asynchronized system Dynamic TDD Cooperative systems coexistence Vehicle-to-Vehicle resource size control beamforming Resource management 5G networks Link adaptation GFDM Time spreading C-V2V mixed numerology interference coordination K-S statistics singular value decomposition MIMO Long Term Evolution-Advanced Reliability Windowing TS-W-OFDM eigen decomposition time-frequency efficiency Aggregate interference Iterative decoder MU-MIMO pilot signal prototype filter Coexistence scenarios interference management interference to noise ratio link reliability Vehicle-to-vehicle communication LTE-based V2V achievable sum rate