期刊
IEEE TRANSACTIONS ON COMMUNICATIONS
卷 66, 期 12, 页码 6304-6316出版社
IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC
DOI: 10.1109/TCOMM.2018.2863385
关键词
Cognitive radio networks; spectrum sharing; spectrum aggregation; spectrum lean; management; spectrum efficiency
资金
- Key R&D Program of Shandong Province [2016GGX101014]
- Fundamental Research Funds of Shandong University [2017JC029]
- National Natural Science Foundation of China [61371110, 61771293, 61603215]
- Hubei Provincial Science and Technology Department [2016AHB006]
- EU FP7-PEOPLEIRSES [610524]
- EU H2020 Program [723227]
- EC H2020 [778305-DAWN4IoE]
- Taishan Scholar Program of Shandong Province
In this paper, new enhanced cognitive radio networks (E-CRNs) based on spectrum sharing (SS) and spectrum aggregation (SA) are proposed for fifth generation (5G) wireless networks. The E-CRNs jointly exploit the licensed spectrum shared with the primary user (PU) networks and the unlicensed spectrum aggregated from the industrial, scientific, and medical bands. The PU networks include TV systems in TV white space and different incumbent systems in the long term evolution time division duplexing bands. The harmful interference from the E-CRNs to the PU networks are delicately controlled. Furthermore, the coexistence between the E-CRNs and other unlicensed systems, such as WiFi, is studied. The E-CRNs framework including dynamic spectrum management (DSM) is designed for the key parameters of licensed SS and unlicensed SA. The essential tradeoff between sharing efficiency and aggregation efficiency for the E-CRNs is discussed. Based on this tradeoff, a spectrum lean-management scheme is proposed to fulfill the DSM. Moreover, a water-filling algorithm is designed to dynamically access the available spectrum. Numerical results demonstrate that the proposed E-CRNs can significantly improve the system performance in terms of data rate, outage probability, and spectrum efficiency. In particular, the E-CRNs framework provides a spectrum usage prototype for 5G wireless communication networks.
作者
我是这篇论文的作者
点击您的名字以认领此论文并将其添加到您的个人资料中。
推荐
暂无数据