Multiple spectra allocation based on software defined wireless network

Software defined network (SDN) and network virtualization (NV) are being adopted as novel technologies to overcome the plight of wired network. With the rapid development of radio access networks (RANs), academia and industry lead a trend that extends SDN and NV to wireless network. Although some research has been done on software defined wireless network (SDWN) or wireless network virtualization (WNV), few concerns spectrum allocation in the case of same frequency interference. In this paper, an SDWN architecture with heterogeneous RAN is introduced first. The most challenging issue of virtual embedding is the broadcast nature of wireless link. Considering the influence of interference to transmission throughput, a wireless virtual embedding algorithm is proposed, which achieve the resource allocation by concerning the whole network performance.