TY - JOUR
T1 - Application of Non-Orthogonal Multiple Access in Cooperative Spectrum-Sharing Networks over Nakagami-$m$ Fading Channels
AU - Lv, Lu
AU - Ni, Qiang
AU - Ding, Zhiguo
AU - Chen, Jian
N1 - Funding Information:
Manuscript received June 1, 2016; revised September 28, 2016; accepted November 7, 2016. Date of publication November 10, 2016; date of current version June 16, 2017. This work was supported in part by the EU FP7 CROWN project under Grant PIRSES-GA-2013-610524, in part by the National Natural Science Foundation of China under Grant 61540046 and Grant 61601347, and in part by the “111” project of China under Grant B38038. The review of this paper was coordinated by Dr. M. Elkashlan. (Corresponding author: Jian Chen.) L. Lv and J. Chen are with the State Key Laboratory of Integrated Service Networks, Xidian University, Xi’an 710071, China (e-mail: lulv@stu. xidian.edu.cn; [email protected]).
Publisher Copyright:
© 1967-2012 IEEE.
PY - 2017/6
Y1 - 2017/6
N2 - This paper proposes a novel non-orthogonal multiple access (NOMA)-based cooperative transmission scheme for a spectrum-sharing cognitive radio network (CRN), whereby a secondary transmitter (ST) serves as a relay and helps transmit the primary and secondary messages simultaneously by employing NOMA signaling. This cooperation is particularly useful when the ST has good channel conditions to a primary receiver but lacks the radio spectrum. To evaluate the performance of the proposed scheme, the outage probability and system throughput for the primary and secondary networks are derived in closed forms. Simulation results demonstrate the superior performance gains for both networks thanks to the use of the proposed NOMA-based cooperative transmission scheme. It is also revealed that NOMA outperforms conventional orthogonal multiple access (OMA) and achieves better spectrum utilization.
AB - This paper proposes a novel non-orthogonal multiple access (NOMA)-based cooperative transmission scheme for a spectrum-sharing cognitive radio network (CRN), whereby a secondary transmitter (ST) serves as a relay and helps transmit the primary and secondary messages simultaneously by employing NOMA signaling. This cooperation is particularly useful when the ST has good channel conditions to a primary receiver but lacks the radio spectrum. To evaluate the performance of the proposed scheme, the outage probability and system throughput for the primary and secondary networks are derived in closed forms. Simulation results demonstrate the superior performance gains for both networks thanks to the use of the proposed NOMA-based cooperative transmission scheme. It is also revealed that NOMA outperforms conventional orthogonal multiple access (OMA) and achieves better spectrum utilization.
KW - Cooperative spectrum-sharing
KW - Nakagami-m fading
KW - non-orthogonal multiple access (NOMA)
UR - http://www.scopus.com/inward/record.url?scp=85028885075&partnerID=8YFLogxK
U2 - 10.1109/TVT.2016.2627559
DO - 10.1109/TVT.2016.2627559
M3 - Article
AN - SCOPUS:85028885075
SN - 0018-9545
VL - 66
SP - 5506
EP - 5511
JO - IEEE Transactions on Vehicular Technology
JF - IEEE Transactions on Vehicular Technology
IS - 6
M1 - 7740931
ER -