ADVANCED SPECTRUM SHARING IN 5G COGNITIVE HETEROGENEOUS NETWORKS

被引：86
|
作者：
Yang, Chungang [1 ]
Li, Jiandong [1 ]
Guizani, Mohsen [2 ]
Anpalagan, Alagan [3 ]
Elkashlan, Maged [4 ]
机构：
[1] Xidian Univ, Xian, Peoples R China
[2] Univ Idaho, Moscow, ID 83843 USA
[3] Ryerson Univ, Dept Elect & Comp Engn, London, England
[4] Queen Mary Univ London, Sch Elect Engn & Comp Sci, London, England
来源：
IEEE WIRELESS COMMUNICATIONS | 2016年 / 23卷 / 02期
基金：
美国国家科学基金会;
关键词：
AD HOC NETWORKS; RADIO NETWORKS; MOBILITY;
D O I：
10.1109/MWC.2016.7462490
中图分类号：
TP3 [计算技术、计算机技术];
学科分类号：
0812 ;
摘要：
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.
引用
收藏
页码：94 / 101
页数：8
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