TY - JOUR
T1 - Performance Analysis for Opportunistic Full-Duplex Relay Selection in Underlay Cognitive Networks
AU - Zhong, Bin
AU - Zhang, Zhongshan
AU - Chai, Xiaomeng
AU - Pan, Zhengang
AU - Long, Keping
AU - Cao, Haiyan
N1 - Publisher Copyright:
© 1967-2012 IEEE.
PY - 2015/10
Y1 - 2015/10
N2 - The performance analysis of optimal decode-and-forward (DF) relay selection for the full-duplex (FD) mode in underlay cognitive radio (CR) networks is studied, with the impact of critical parameters such as the residual self-interference, the distributions of the received signal-to-noise ratio (SNR), and the outage probability, being analyzed. Different from the conventional relay selection schemes with half-duplex (HD) mode, the FD relay suffers from the impact of residual self-interference due to its simultaneous transmission and reception using the same channel. Furthermore, the exact closed-form expressions for the outage probabilities of the proposed FD relay-selection scheme over both independent Nakagami- m and Rayleigh fading channels are derived, with the validity of the proposed analysis being proven by using simulation. Numerical results show that, in the presence of multiple candidate relays, an optimum relay-selection solution in terms of outage probability can always be achievable within the SNR range of (10 dB, 15 dB).
AB - The performance analysis of optimal decode-and-forward (DF) relay selection for the full-duplex (FD) mode in underlay cognitive radio (CR) networks is studied, with the impact of critical parameters such as the residual self-interference, the distributions of the received signal-to-noise ratio (SNR), and the outage probability, being analyzed. Different from the conventional relay selection schemes with half-duplex (HD) mode, the FD relay suffers from the impact of residual self-interference due to its simultaneous transmission and reception using the same channel. Furthermore, the exact closed-form expressions for the outage probabilities of the proposed FD relay-selection scheme over both independent Nakagami- m and Rayleigh fading channels are derived, with the validity of the proposed analysis being proven by using simulation. Numerical results show that, in the presence of multiple candidate relays, an optimum relay-selection solution in terms of outage probability can always be achievable within the SNR range of (10 dB, 15 dB).
KW - Cognitive radio (CR)
KW - cooperative networks
KW - decode-andforward (DF)
KW - full duplex (FD)
KW - outage probability
KW - relay selection
UR - http://www.scopus.com/inward/record.url?scp=84941745429&partnerID=8YFLogxK
U2 - 10.1109/TVT.2014.2368584
DO - 10.1109/TVT.2014.2368584
M3 - Article
AN - SCOPUS:84941745429
SN - 0018-9545
VL - 64
SP - 4905
EP - 4910
JO - IEEE Transactions on Vehicular Technology
JF - IEEE Transactions on Vehicular Technology
IS - 10
M1 - 6949656
ER -