Open AccessPrioritized Secondary User Access Control in Cognitive Radio Networks
Author(s) -
Huaxia Wang,
Yu-Dong Yao,
Shengliang Peng
Publication year - 2018
Publication title -
ieee access
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.587
H-Index - 127
ISSN - 2169-3536
DOI - 10.1109/access.2018.2811341
Subject(s) - aerospace , bioengineering , communication, networking and broadcast technologies , components, circuits, devices and systems , computing and processing , engineered materials, dielectrics and plasmas , engineering profession , fields, waves and electromagnetics , general topics for engineers , geoscience , nuclear engineering , photonics and electrooptics , power, energy and industry applications , robotics and control systems , signal processing and analysis , transportation
In cognitive radio networks, a secondary user access control (SUAC) technique has been utilized to improve network management and system security, in which a jamming signal is injected to degrade the spectrum sensing performance of unauthorized secondary users. In the meantime, it ensures reliable spectrum sensing performance for authorized secondary users (A-SUs). In order to introduce spectrum access priorities among A-SUs, a prioritized SUAC (P-SUAC) technique is investigated in this paper. A projection-based jamming cancellation method is considered, where the singular value decomposition operation is applied in computing prioritized projection operators. An orthogonal frequency-division multiplexing technique is considered as a transmission model, and the energy detection method is used for secondary user spectrum sensing. Simulation results illustrate the effectiveness of the proposed P-SUAC method in providing the A-SUs with different access priorities.
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