TY - JOUR
T1 - Novel relay selection strategies for cooperative NOMA
AU - Yang, Zheng
AU - Ding, Zhiguo
AU - Wu, Yi
AU - Fan, Pingzhi
N1 - Funding Information:
Manuscript received April 11, 2017; revised August 12, 2017; accepted August 20, 2017. Date of publication September 14, 2017; date of current version November 10, 2017. The work of Z. Yang and Y. Wu was supported by National Natural Science Foundation of China under Grant 61701118 and National Natural Science Foundation of China under Grant 61571128. The work of Z. Ding was supported in part by the UK EPSRC under Grant EP/L025272/1 and in part by H2020-MSCA-RISE-2015 under Grant 690750. The work of P. Fan was supported by the National Science & Tech Major Project under Grant 2016ZX03001018, and the 111 Project under Grant 111-2-14. The review of this paper was coordinated by Y. L. Guan. (Corresponding author: Zheng Yang.) Z. Yang and Y. Wu are with the Fujian Provincial Engineering Technology Research Center of Photoelectric Sensing Application, Fujian Normal University, Fuzhou 350007, China (e-mail: [email protected]; [email protected]).
Publisher Copyright:
© 1967-2012 IEEE.
PY - 2017/11
Y1 - 2017/11
N2 - In this paper, we consider non-orthogonal multiple access (NOMA) relaying networks, where one base station communicates with two mobile users with the aid of multiple relays. We propose a two-stage relay selection strategy for NOMA networks with decode-and-forward (DF) and amplify-and-forward (AF) relaying protocols with different quality of service requirements at the users, respectively. Then, the outage probabilities of the NOMA two-stage DF and AF schemes are obtained in closed-form expressions, and the diversity order is determined based on their asymptotic expressions at high signal-to-noise ratio. Both of the developed analytical results and carried out computer simulations show that NOMA two-stage DF (AF) relaying is superior to existing relay selection strategies developed for cooperative NOMA and orthogonal multiple access networks.
AB - In this paper, we consider non-orthogonal multiple access (NOMA) relaying networks, where one base station communicates with two mobile users with the aid of multiple relays. We propose a two-stage relay selection strategy for NOMA networks with decode-and-forward (DF) and amplify-and-forward (AF) relaying protocols with different quality of service requirements at the users, respectively. Then, the outage probabilities of the NOMA two-stage DF and AF schemes are obtained in closed-form expressions, and the diversity order is determined based on their asymptotic expressions at high signal-to-noise ratio. Both of the developed analytical results and carried out computer simulations show that NOMA two-stage DF (AF) relaying is superior to existing relay selection strategies developed for cooperative NOMA and orthogonal multiple access networks.
KW - amplify-and-forward
KW - Cooperative non-orthogonal multiple access
KW - decode-and-forward
KW - outage probability
UR - http://www.scopus.com/inward/record.url?scp=85030227527&partnerID=8YFLogxK
U2 - 10.1109/TVT.2017.2752264
DO - 10.1109/TVT.2017.2752264
M3 - Article
AN - SCOPUS:85030227527
SN - 0018-9545
VL - 66
SP - 10114
EP - 10123
JO - IEEE Transactions on Vehicular Technology
JF - IEEE Transactions on Vehicular Technology
IS - 11
M1 - 8038031
ER -
