TY - GEN
T1 - A robust STBC based dynamical clustering cooperative spectrum sensing scheme in CR systems
AU - Wang, Bing
AU - Bai, Zhiquan
AU - Xu, Yinlong
AU - Gong, Peng
AU - Kwak, Kyungsup
PY - 2013
Y1 - 2013
N2 - Cooperative spectrum sensing is employed to detect the primary user more accurately in cognitive radio systems. Since the non-ideal reporting channels between the base station and the cognitive users degrade the sensing performance, STBC based clustering scheme is adopted to deal with this problem. However, inter-user channels between cognitive users may also experience fading and decrease the sensing performance. In this paper, we propose a robust dynamically-clustered cooperative sensing scheme. The proposed scheme makes full use of the inter-user channel information and groups the cognitive users based on the quality of inter-user channel. Simulation results show that the proposed scheme improves the system sensing performance significantly.
AB - Cooperative spectrum sensing is employed to detect the primary user more accurately in cognitive radio systems. Since the non-ideal reporting channels between the base station and the cognitive users degrade the sensing performance, STBC based clustering scheme is adopted to deal with this problem. However, inter-user channels between cognitive users may also experience fading and decrease the sensing performance. In this paper, we propose a robust dynamically-clustered cooperative sensing scheme. The proposed scheme makes full use of the inter-user channel information and groups the cognitive users based on the quality of inter-user channel. Simulation results show that the proposed scheme improves the system sensing performance significantly.
KW - STBC
KW - cognitive radio
KW - cooperative spectrum sensing
KW - dynamical clustering
UR - http://www.scopus.com/inward/record.url?scp=84891595187&partnerID=8YFLogxK
U2 - 10.1109/ICUFN.2013.6614881
DO - 10.1109/ICUFN.2013.6614881
M3 - Conference contribution
AN - SCOPUS:84891595187
SN - 9781467359900
T3 - International Conference on Ubiquitous and Future Networks, ICUFN
SP - 553
EP - 557
BT - ICUFN 2013 - 5th International Conference on Ubiquitous and Future Networks
T2 - 5th International Conference on Ubiquitous and Future Networks, ICUFN 2013
Y2 - 2 July 2013 through 5 July 2013
ER -