TY - JOUR
T1 - Estimate the primary-link SNR using full-duplex relay for underlay spectrum sharing
AU - Zhao, Guodong
AU - Huang, Bijia
AU - Li, Liying
AU - Chen, Zhi
PY - 2016/4
Y1 - 2016/4
N2 - In cognitive radio networks, the signal-to-noise ratio (SNR) of the primary receiver (PR), called primary-link SNR, is critical for underlay spectrum sharing. However, it is very difficult for the cognitive user (CU) to obtain the primary-link SNR. In this letter, we propose a new method to let the CU autonomously estimate the primary-link SNR, where the full-duplex relay technique is used. Then, the CU can conduct the underlay spectrum sharing more efficiently. Simulation results indicate the effectiveness of the proposed method.
AB - In cognitive radio networks, the signal-to-noise ratio (SNR) of the primary receiver (PR), called primary-link SNR, is critical for underlay spectrum sharing. However, it is very difficult for the cognitive user (CU) to obtain the primary-link SNR. In this letter, we propose a new method to let the CU autonomously estimate the primary-link SNR, where the full-duplex relay technique is used. Then, the CU can conduct the underlay spectrum sharing more efficiently. Simulation results indicate the effectiveness of the proposed method.
KW - Cognitive radio
KW - estimation
KW - full-duplex relay
KW - SNR
UR - http://www.scopus.com/inward/record.url?scp=84964620299&partnerID=8YFLogxK
U2 - 10.1109/LSP.2016.2530091
DO - 10.1109/LSP.2016.2530091
M3 - Article
AN - SCOPUS:84964620299
VL - 23
SP - 429
EP - 433
JO - IEEE Signal Processing Letters
JF - IEEE Signal Processing Letters
SN - 1070-9908
IS - 4
M1 - 7407331
ER -