Open AccessA Contention-Free Reporting Scheme Based MAC Protocol for Cooperative Spectrum Sensing in Cognitive Radio Networks
Author(s) -
Zong-Heng Wei,
Bin-Jie Hu,
En-Jun Xia,
Sheng-He Lu
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.2018.2853988
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
Cooperative spectrum sensing (CSS) is widely investigated in cognitive radio networks (CRNs) to improve the spectrum sensing performance. To realize CSS, how to collect sensing data from the secondary users (SUs) is one of the major problems. To solve the problem, in this paper, we propose a contention-free reporting scheme-based MAC protocol for CSS in the CRNs. With the proposed the MAC protocol, the SUs can report the sensing data to the fusion center without any reporting collisions, therefore increasing the reporting channel efficiency. Moreover, two admission control schemes are designed for throughput optimization and energy efficiency optimization, which further improve the performance of the proposed MAC protocol. Simulation results show that the proposed MAC protocol outperforms existing protocols.
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