TY - JOUR
T1 - Forwarding Strategy Selection in Dual-Hop NOMA Relaying Systems
AU - Xiao, Yue
AU - Hao, Li
AU - Ma, Zheng
AU - Ding, Zhiguo
AU - Zhang, Zhengquan
AU - Fan, Pingzhi
N1 - Funding Information:
Manuscript received December 31, 2017; revised January 31, 2018; accepted January 31, 2018. Date of publication February 8, 2018; date of current version August 10, 2018. This work was supported by the National Natural Science Foundation of China (61571373, U1734209, U1709219), Key International Cooperation Project of Sichuan Province (2017HH0002) and NSFC China-Swedish project (6161101297), also the 111 Project (No.111-2-14), and EU Marie Sklodowska-Curie individual Fellowship (no. 796426). The associate editor coordinating the review of this letter and approving it for publication was F. Wang. (Corresponding author: Zheng Ma.) Y. Xiao, L. Hao, Z. Ma, Z. Zhang, and P. Fan are with the Key Laboratory of Information Coding and Transmission, Southwest Jiaotong University, Chengdu 610031, China (e-mail: [email protected]; lhao@ swjtu.edu.cn; [email protected]; [email protected]; [email protected]).
Publisher Copyright:
© 1997-2012 IEEE.
PY - 2018/8
Y1 - 2018/8
N2 - Non-orthogonal multiple-Access (NOMA) with perfect successive interference cancellation is an emerging research topic in the future wireless communication systems. In this work, NOMA is applied to dual-hop relaying systems, where the signals are transmitted with the aid of either decode-And-forward (DF) or amplify-And-forward (AF) relay. Exact expressions for outage probability and ergodic capacity are derived over independent Rayleigh fading channels, and a tight upper bound for the outage probability of AF scheme is provided. Based on the analysis, we study forwarding strategy selection for both fixed and optimized power allocation. The presented simulations verify the accuracy of the analysis, and the efficiency of the proposed forwarding strategy.
AB - Non-orthogonal multiple-Access (NOMA) with perfect successive interference cancellation is an emerging research topic in the future wireless communication systems. In this work, NOMA is applied to dual-hop relaying systems, where the signals are transmitted with the aid of either decode-And-forward (DF) or amplify-And-forward (AF) relay. Exact expressions for outage probability and ergodic capacity are derived over independent Rayleigh fading channels, and a tight upper bound for the outage probability of AF scheme is provided. Based on the analysis, we study forwarding strategy selection for both fixed and optimized power allocation. The presented simulations verify the accuracy of the analysis, and the efficiency of the proposed forwarding strategy.
KW - amplify-And-forward relaying
KW - decode-And-forward relaying
KW - forwarding strategy selection
KW - Non-orthogonal multiple-Access (NOMA)
UR - http://www.scopus.com/inward/record.url?scp=85041495029&partnerID=8YFLogxK
U2 - 10.1109/LCOMM.2018.2803809
DO - 10.1109/LCOMM.2018.2803809
M3 - Article
AN - SCOPUS:85041495029
SN - 1089-7798
VL - 22
SP - 1644
EP - 1647
JO - IEEE Communications Letters
JF - IEEE Communications Letters
IS - 8
M1 - 8287018
ER -