DefinePK

Abstract

The deployment of Device-to-Device (D2D) communication in the millimeter-wave (mm-wave) band has shown the potential of significantly improving performance in terms of capacity, energy efficiency, and transmission latency. The high mm-wave frequencies offer a broader spectrum, compared to the current cellular networks, which enhances the deployment of highly directional antenna arrays to reduce interference problems. However, deployment of D2D communication in the mm-wave band is faced with a challenge of signal blockage by obstacles. In addition, if users are subjected to some mobility, there will be beam misalignments between the transmitter and the receiver and frequent monitoring and handovers. In dense D2D communication in the mm-wave band, there is interference between the multiple D2D devices. All these cases increase interference in the mm-wave D2D communication network. Therefore, an effective mechanism needs to be developed to reduce this interference to maximize the D2D user capacity by allocating resources effectively. The paper aims to formulate a joint uplink scheduling and resource allocation scheme to maximize the user capacity in a MIMO-enabled mm-wave D2D network with user mobility. The developed mm-wave D2D model integrates Filter Bank Multicarrier/Offset Quadrature Amplitude Modulation (FBMC/OQAM), MIMO Space-Time Coding (STC) and Spatial Multiplexing (SM) which are implemented separately and their performance compared. The developed mm-wave D2D model is simulated and its results compared with the conventional Orthogonal Frequency Division Multiplexing (OFDM) scheme. The results indicate that the FBMC/OQAM outperformed OFDM by an average factor of 2.03 times for I=64, LOS, 2.53 for I=64, NLOS, 2.08 for I=256, LOS, 2.45 for I=256, NLOS, 2.08 for STC, LOS and 2.30 for STC, NLOS.