TY - GEN
T1 - Signal detection for spectrum sensing with uncertain arrivals of traffics
AU - Chin, Wen Long
AU - Hwang, Yin Je
AU - Lin, Ya Xuan
PY - 2016/1/13
Y1 - 2016/1/13
N2 - Due to random arrivals of primary user signals, their timing misalignment issue should be considered for spectrum sensing in cognitive radio (CR) systems, such as CR based femtocell networks. To deal with this issue in the literature, two approaches were recommended, including Bayesian and generalized likelihood ratio test (GLRT) detectors. However, Bayesian test requires the perfect knowledge of the distribution of unknown parameters. Therefore, it is considered to be impractical due to its implementation complexity. To design a low complexity energy detector (ED), this work proposes an ED scheme based on GLRT algorithm. As a result, maximum-likelihood (ML) estimation for the timing misalignment is devised, and the performance of the proposed scheme is analyzed. The results show that the proposed GLRT detector features a low complexity and satisfactory performance.
AB - Due to random arrivals of primary user signals, their timing misalignment issue should be considered for spectrum sensing in cognitive radio (CR) systems, such as CR based femtocell networks. To deal with this issue in the literature, two approaches were recommended, including Bayesian and generalized likelihood ratio test (GLRT) detectors. However, Bayesian test requires the perfect knowledge of the distribution of unknown parameters. Therefore, it is considered to be impractical due to its implementation complexity. To design a low complexity energy detector (ED), this work proposes an ED scheme based on GLRT algorithm. As a result, maximum-likelihood (ML) estimation for the timing misalignment is devised, and the performance of the proposed scheme is analyzed. The results show that the proposed GLRT detector features a low complexity and satisfactory performance.
UR - http://www.scopus.com/inward/record.url?scp=84966692210&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=84966692210&partnerID=8YFLogxK
U2 - 10.1109/FSKD.2015.7382291
DO - 10.1109/FSKD.2015.7382291
M3 - Conference contribution
AN - SCOPUS:84966692210
T3 - 2015 12th International Conference on Fuzzy Systems and Knowledge Discovery, FSKD 2015
SP - 2185
EP - 2189
BT - 2015 12th International Conference on Fuzzy Systems and Knowledge Discovery, FSKD 2015
A2 - Tang, Zhuo
A2 - Du, Jiayi
A2 - Yin, Shu
A2 - Li, Renfa
A2 - He, Ligang
PB - Institute of Electrical and Electronics Engineers Inc.
T2 - 12th International Conference on Fuzzy Systems and Knowledge Discovery, FSKD 2015
Y2 - 15 August 2015 through 17 August 2015
ER -