TY - GEN
T1 - Overlay cognitive radio systems with adaptive two-way relaying
AU - Hyadi, Amal
AU - Driouch, El Mahdi
AU - Ajib, Wessam
AU - Alouini, Mohamed-Slim
N1 - KAUST Repository Item: Exported on 2020-10-01
PY - 2013/12
Y1 - 2013/12
N2 - In this paper, we propose a spectrum sharing mechanism with a two-phase two-way relaying protocol for an overlay cognitive network. The system comprises two primary users (PUs) and two secondary users (SUs). One of the SUs acts as a relay for the PUs and gains spectrum sharing as long as he respects outage probability constraints of the primary system. Moreover, we consider that the relaying node performs an optimal power allocation scheme that minimizes the outage performance of the secondary receiver. Closed form expressions for the outage probability are derived for the cases of Decode-and-Forward (DF), Amplify-and-Forward (AF), and adaptive relaying. Numerical simulations are presented to illustrate and compare the obtained results. © 2013 IEEE.
AB - In this paper, we propose a spectrum sharing mechanism with a two-phase two-way relaying protocol for an overlay cognitive network. The system comprises two primary users (PUs) and two secondary users (SUs). One of the SUs acts as a relay for the PUs and gains spectrum sharing as long as he respects outage probability constraints of the primary system. Moreover, we consider that the relaying node performs an optimal power allocation scheme that minimizes the outage performance of the secondary receiver. Closed form expressions for the outage probability are derived for the cases of Decode-and-Forward (DF), Amplify-and-Forward (AF), and adaptive relaying. Numerical simulations are presented to illustrate and compare the obtained results. © 2013 IEEE.
UR - http://hdl.handle.net/10754/564835
UR - http://ieeexplore.ieee.org/document/6831194/
UR - http://www.scopus.com/inward/record.url?scp=84904115620&partnerID=8YFLogxK
U2 - 10.1109/GLOCOM.2013.6831194
DO - 10.1109/GLOCOM.2013.6831194
M3 - Conference contribution
SN - 9781479913534
SP - 937
EP - 942
BT - 2013 IEEE Global Communications Conference (GLOBECOM)
PB - Institute of Electrical and Electronics Engineers (IEEE)
ER -