Clustering and Transmit Power Control for Social Assisted D2D Cellular Networks

Device-to-Device (D2D) is a novel communication architecture that is expected to significantly improve the performance of next-generation 5G cellular networks by efficient reuse of licensed spectrum. However, excessive and uncontrolled spectrum reuse comes with the cost of co-channel interference, which deteriorates the overall network’s performance. To maximize the gains of D2D deployments, it is crucial to develop interference-aware spectrum reuse techniques. This paper proposes a social-aware clustering technique to maximize spectrum reuse and minimize co-channel interference for parallel D2D transmissions. Furthermore, we propose a Particle Swarm Optimisation based transmit power control scheme to maximize the system throughput and energy efficiency. Our simulation results show a significant improvement in network performance for different activation probabilities.