ADVANCED SPECTRUM SHARING IN 5G COGNITIVE HETEROGENEOUS NETWORKS

作者：Yang, Chungang; Li, Jiandong; Guizani, Mohsen^*; Anpalagan, Alagan; Elkashlan, Maged

来源：IEEE Wireless Communications, 2016, 23(2): 94-101.

DOI：10.1109/MWC.2016.7462490

• AD HOC NETWORKS
• RADIO NETWORKS
• MOBILITY

Spectrum utilization, energy consumption, and cost efficiency are three key performance metrics that should be jointly investigated in developing a sustainable 5G system. Advanced spectrum sharing can enhance both the spectral efficiency and energy efficiency in a cost-effective manner, which is expected to perform much better than conventional networks. In this article, we survey cognitive and cooperative spectrum sharing, and classify a multi-level spectrum exploitation, coordination, and utilization framework from both technical and economic perspectives. We specifically concentrate on spectrum trading and leasing, spectrum mobility, relaying, routing, and harvesting. Finally, a spectrum flowing scheme is proposed for 5G cognitive heterogeneous cellular networks, which improves both spectral and energy efficiency.

• 出版日期2016-4
• 单位西安电子科技大学