TY - GEN
T1 - On achievable rate of two-way relaying cognitive radio with space alignment
AU - Sboui, Lokman
AU - Ghazzai, Hakim
AU - Rezki, Zouheir
AU - Alouini, Mohamed-Slim
N1 - KAUST Repository Item: Exported on 2020-10-01
PY - 2015/9/11
Y1 - 2015/9/11
N2 - We study a multiple-antenna two-way relaying (TWR) spectrum sharing system. A space alignment (SA) technique is adopted by the secondary users (SU's) to avoid interference with the primary users (PU's). We derive the optimal power allocation that maximizes the TWR achievable sum-rate of the SU while respecting the total power budget and the relay power constraints. In the numerical results, we quantify the sum-rate gain of using the SA in the TWR CR and we show that the SU sum-rate is very limited when the relay power is low or the PU's power and its resulting interference is high. © 2015 IEEE.
AB - We study a multiple-antenna two-way relaying (TWR) spectrum sharing system. A space alignment (SA) technique is adopted by the secondary users (SU's) to avoid interference with the primary users (PU's). We derive the optimal power allocation that maximizes the TWR achievable sum-rate of the SU while respecting the total power budget and the relay power constraints. In the numerical results, we quantify the sum-rate gain of using the SA in the TWR CR and we show that the SU sum-rate is very limited when the relay power is low or the PU's power and its resulting interference is high. © 2015 IEEE.
UR - http://hdl.handle.net/10754/621324
UR - http://ieeexplore.ieee.org/document/7249546/
UR - http://www.scopus.com/inward/record.url?scp=84953776236&partnerID=8YFLogxK
U2 - 10.1109/ICC.2015.7249546
DO - 10.1109/ICC.2015.7249546
M3 - Conference contribution
SN - 9781467364324
SP - 7628
EP - 7632
BT - 2015 IEEE International Conference on Communications (ICC)
PB - Institute of Electrical and Electronics Engineers (IEEE)
ER -