Joint Beam and Spectrum Allocation with User Association for 5G/WiFi Coexisting Millimeter Wave Networks

Resource management in 5G/WiFi coexisting millimeter wave networks is the key to support the high throughput demand in hotspots. A joint multi-dimensional resource allocation algorithm based on block coordinate descent is proposed in this paper, where the original throughput maximization problem is divided into three sub-problems, i.e., user association, beamforming design as well as spectrum allocation, and solved iteratively. Specifically, the method of matching exchange and generalized Rayleigh quotient are used for optimizing user association and digital beamforming, respectively. The simulation verifies that the algorithm achieves better performance in terms of the uplink throughput in 5G/WiFi coexisting networks.