TY - GEN
T1 - A survey of cognitive radio technologies and their optimization approaches
AU - Liu, Xiaoyuan
AU - Zhang, Yanling
AU - Li, Yang
AU - Zhang, Zhongshan
AU - Long, Keping
PY - 2013
Y1 - 2013
N2 - Although Cognitive radio (CR) is regarded as a promising technology to provide high bandwidth to mobile users via heterogeneous wireless network architectures and dynamic spectrum access techniques, cognitive radio networks (CRNs) may also impose some challenges due to factors such as the ever increasing complexity of network architecture and the increasing complexity with configuration and management of large-scale networks. In this paper, fundamentals of CR, including spectrum sensing, spectrum management, spectrum mobility and spectrum sharing, are surveyed, with their paradigms of self-organization being emphasized. Besides, variant aspects of self-organization paradigms in CRNs, including critical functionalities of Media Access Control (MAC)- and network-layer operations, are surveyed. This survey also identifies new directions and open problems in CRNs.
AB - Although Cognitive radio (CR) is regarded as a promising technology to provide high bandwidth to mobile users via heterogeneous wireless network architectures and dynamic spectrum access techniques, cognitive radio networks (CRNs) may also impose some challenges due to factors such as the ever increasing complexity of network architecture and the increasing complexity with configuration and management of large-scale networks. In this paper, fundamentals of CR, including spectrum sensing, spectrum management, spectrum mobility and spectrum sharing, are surveyed, with their paradigms of self-organization being emphasized. Besides, variant aspects of self-organization paradigms in CRNs, including critical functionalities of Media Access Control (MAC)- and network-layer operations, are surveyed. This survey also identifies new directions and open problems in CRNs.
UR - http://www.scopus.com/inward/record.url?scp=84893534964&partnerID=8YFLogxK
U2 - 10.1109/ChinaCom.2013.6694736
DO - 10.1109/ChinaCom.2013.6694736
M3 - Conference contribution
AN - SCOPUS:84893534964
SN - 9781479914067
T3 - 2013 8th International ICST Conference on Communications and Networking in China, CHINACOM 2013 - Proceedings
SP - 973
EP - 978
BT - 2013 8th International ICST Conference on Communications and Networking in China, CHINACOM 2013 - Proceedings
T2 - 2013 8th International ICST Conference on Communications and Networking in China, CHINACOM 2013
Y2 - 14 August 2013 through 16 August 2013
ER -