TY - GEN
T1 - Energy-efficient cooperative spectrum sensing in cognitive radio networks
AU - Peh, Edward C.Y.
AU - Liang, Ying Chang
AU - Guan, Yong Liang
AU - Pei, Yiyang
PY - 2011
Y1 - 2011
N2 - When secondary users (SUs) in a cognitive radio network (CRN) are battery-powered wireless devices, energy resources become very precious. Therefore, it is important that their energies are used efficiently. In this paper, we define the energy efficiency as the ratio of the average throughput of the CRN over the average energy used by the CRN. In cooperative spectrum sensing, the fusion rule threshold, detector's thresholds at the SUs, length of the sensing time, and the number of cooperating SUs will affect both the average throughput and the average energy consumed by the CRN. Therefore, in this paper, we optimize and evaluate these parameters with the aim of maximizing the energy efficiency of the CRN.
AB - When secondary users (SUs) in a cognitive radio network (CRN) are battery-powered wireless devices, energy resources become very precious. Therefore, it is important that their energies are used efficiently. In this paper, we define the energy efficiency as the ratio of the average throughput of the CRN over the average energy used by the CRN. In cooperative spectrum sensing, the fusion rule threshold, detector's thresholds at the SUs, length of the sensing time, and the number of cooperating SUs will affect both the average throughput and the average energy consumed by the CRN. Therefore, in this paper, we optimize and evaluate these parameters with the aim of maximizing the energy efficiency of the CRN.
UR - http://www.scopus.com/inward/record.url?scp=84857228860&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=84857228860&partnerID=8YFLogxK
U2 - 10.1109/GLOCOM.2011.6134342
DO - 10.1109/GLOCOM.2011.6134342
M3 - Conference contribution
AN - SCOPUS:84857228860
SN - 9781424492688
T3 - GLOBECOM - IEEE Global Telecommunications Conference
BT - 2011 IEEE Global Telecommunications Conference, GLOBECOM 2011
T2 - 54th Annual IEEE Global Telecommunications Conference: "Energizing Global Communications", GLOBECOM 2011
Y2 - 5 December 2011 through 9 December 2011
ER -