Optimization of Spectrum Resource Allocation based on Network Slicing

Communication services have become increasingly widespread in recent years. The fifth generation mobile communication standard organizations have set and adopted relevant standards, especially the Third Generation Partnership Project (3GPP). In addition to improving the efficiency of spectrum use and saving energy, how to serve narrow-band networking such as narrow-band internet of thing (NB-IoT) is also very important in the fifth-generation mobile communications. Spectral network layer with network slicing resource allocation (RA) is used in this paper so that the user equipment (UE) can meet the minimum quality of service (QoS) under the OFDMA (Orthogonal Frequency Division Multiple Access) environment. The problem is characterized as an optimization problem, and a Heuristic algorithm is designed to solve it.