Joint Cooperation Set Selection and Resource Allocation of JT CoMP in Ultra Dense Network

Ultra Dense Network(UDN) is considered as a promising technology in the fifth-generation (5G) mobile communication system. However, some users will acquire extremely low sum rate as a consequence of strong inter-cell interference. Hence, Joint Transmission Coordinated Multi-Point(JT CoMP) is applied to mitigate the inter-cell interference. In this paper, to improve fairness of users, we optimize the user-centric selection of cooperation set, as well as considering the resource allocation to maximize the sum rate of the minimum user. Then we propose Load-aware Binary Genetic Algorithm(LBGA) and Resource Balancing-oriented RB Allocated Algorithm(RB-RBAA), respectively. Simulation results show that our algorithms can improve the sum rate of minimum user efficiently and guarantee the fairness of users.