Cited by 321Cognitive Radio Networks and Spectrum SensingVehicular Ad Hoc Networks (VANETs)Energy Harvesting in Wireless Networks

Full spectrum sharing in cognitive radio networks toward 5G: a survey

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Hu, Feng, Chen, Bing, Zhu, Kun·2018·IEEE Access

Abstract

With the development of wireless communication technology, the need for bandwidth is increasing continuously, and the growing need makes wireless spectrum resources more and more scarce. Cognitive radio (CR) has been identified as a promising solution for the spectrum scarcity, and its core idea is the dynamic spectrum access. It can dynamically utilize the idle spectrum without affecting the rights of primary users, so that multiple services or users can share a part of the spectrum, thus achieving the goal of avoiding the high cost of spectrum resetting and improving the utilization of spectrum resources. In order to meet the critical requirements of the fifth generation (5G) mobile network, especially theWider-Coverage,Massive-Capacity,Massive-Connectivity, andLow-Latencyfour application scenarios, the spectrum range used in 5G will be further expanded into the full spectrum era, possibly from 1 GHz to 100 GHz. In this paper, we conduct a comprehensive survey of CR technology and focus on the current significant research progress in the full spectrum sharing towards the four scenarios. In addition, the key enabling technologies that may be closely related to the study of 5G in the near future are presented in terms of full-duplex spectrum sensing, spectrum-database based spectrum sensing, auction based spectrum allocation, carrier aggregation based spectrum access. Subsequently, other issues that play a positive role for the development research and practical application of CR, such as common control channel, energy harvesting, non-orthogonal multiple access, and CR based aeronautical communication are discussed. The comprehensive overview provided by this survey is expected to help researchers develop CR technology in the field of 5G further.

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Crossref · 10.1109/access.2018.2802450

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Authors
Hu, F., Chen, B., & Zhu, K.
Affiliations
Nanjing University of Aeronautics and Astronautics (CN)
Venue
IEEE Access
Published
2018
Volume
6
Pages
15754-15776
ISSN
2169-3536 (ISSN-L)
OpenAlex
W2789470429
Cited by
321
References
138
Citations by year
2026: 9 · 2025: 22 · 2024: 24 · 2023: 38 · 2022: 52 · 2021: 45 · 2020: 65 · 2019: 50 · 2018: 16
FWCI
27.25
Type
journal article
Language
en
Open access
Locations
  • IEEE Access (publishedVersion)
  • DOAJ (DOAJ: Directory of Open Access Journals) (submittedVersion, cc-by-sa)
Funders
  • National Key Research and Development Program of China (2017YFB0802303)
  • National Natural Science Foundation of China (61672283)
  • Funding of Jiangsu Innovation Program for Graduate Education (KYLX15_0325)
Topics
  • Physical Sciences › Computer Science › Computer Networks and Communications › Cognitive Radio Networks and Spectrum Sensing
  • Physical Sciences › Engineering › Electrical and Electronic Engineering › Vehicular Ad Hoc Networks (VANETs)
  • Physical Sciences › Engineering › Electrical and Electronic Engineering › Energy Harvesting in Wireless Networks
Keywords
cognitive radio, 5G, dynamic spectrum access, spectrum scarcity, spectral library, carrier aggregation, common control channel, energy harvesting, non-orthogonal multiple access, aviation communication

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