TY - JOUR
T1 - A novel spectrum sharing scheme assisted by secondary NOMA relay
AU - Chen, Bingcai
AU - Chen, Yu
AU - Chen, Yunfei
AU - Cao, Yang
AU - Zhao, Nan
AU - Ding, Zhiguo
N1 - Funding Information:
Manuscript received February 13, 2018; accepted March 15, 2018. Date of publication March 20, 2018; date of current version October 11, 2018. This work was supported in part by the U.K. EPSRC under Grant EP/P009719/1, in part by the National Natural Science Foundation of China under Grant 61771089 and Grant 61671101, in part by the Open Research Fund of National Mobile Communications Research Laboratory, Southeast University under Grant 2018D03, and in part by the Fundamental Research Funds for the Central Universities under Grant DUT17JC43. The associate editor coordinating the review of this paper and approving it for publication was S. De. (Corresponding author: Nan Zhao.) B. Chen is with the Faculty of Electronic Information and Electrical Engineering, Dalian University of Technology, Dalian 116024, China, and also with the School of Computer Science and Technology, Xinjiang Normal University, Ürümqi 830054, China (e-mail: [email protected]).
Publisher Copyright:
© 2012 IEEE.
PY - 2018/10
Y1 - 2018/10
N2 - In this letter, a two-slot secondary non-orthogonal multiple access (NOMA) relay is used to assist spectrum sharing, where the primary transceivers with long distance communicate through the relay. First, the information for the primary receiver (PR) and secondary receivers (SRs) is transmitted via the NOMA relay. Then, the information for PR is re-transmitted to it through a selected SR to improve its quality of service using maximal-ratio combining, while the next data for PR is sent from the primary transmitter to the NOMA relay simultaneously. The power allocation solution is derived for the NOMA relay. Simulation results have shown the effectiveness of the proposed scheme.
AB - In this letter, a two-slot secondary non-orthogonal multiple access (NOMA) relay is used to assist spectrum sharing, where the primary transceivers with long distance communicate through the relay. First, the information for the primary receiver (PR) and secondary receivers (SRs) is transmitted via the NOMA relay. Then, the information for PR is re-transmitted to it through a selected SR to improve its quality of service using maximal-ratio combining, while the next data for PR is sent from the primary transmitter to the NOMA relay simultaneously. The power allocation solution is derived for the NOMA relay. Simulation results have shown the effectiveness of the proposed scheme.
KW - Maximal-ratio combining
KW - non-orthogonal multiple access
KW - power allocation
KW - relay
KW - spectrum sharing
UR - http://www.scopus.com/inward/record.url?scp=85044282587&partnerID=8YFLogxK
U2 - 10.1109/LWC.2018.2817501
DO - 10.1109/LWC.2018.2817501
M3 - Article
AN - SCOPUS:85044282587
SN - 2162-2337
VL - 7
SP - 732
EP - 735
JO - IEEE Wireless Communications Letters
JF - IEEE Wireless Communications Letters
IS - 5
M1 - 8320301
ER -