5G: Optimization of Multicast Routing and Wireless Resource Allocation in D2D Communications

In this paper, we optimize the 5G D2D communications while considering the multicast flows and the bandwidth OFDMA resource allocation. We propose new optimized routing and resource allocation algorithm based on column- -generation. To do that, new problem formulation based on graph theory is propounded. Based on extensive network simulation in NS-3 environment, we show that our proposal achieves good performances in terms of reliability, latency, and scalability.