TY - JOUR
T1 - On the performance of NOMA with hybrid ARQ
AU - Cai, Donghong
AU - Ding, Zhiguo
AU - Fan, Pingzhi
AU - Yang, Zheng
N1 - Funding Information:
Manuscript received October 14, 2017; revised May 3, 2018; accepted July 3, 2018. Date of publication July 9, 2018; date of current version October 15, 2018. The work of D. Cai and P. Fan was supported in part by the National Science Foundation of China under Grant 61731017, in part by the National Science and Technology Major Project under Grant 2016ZX03001018-002, and in part by the 111 Project under Grant 111-2-14. The work of Z. Ding was supported in part by the UK EPSRC under Grant EP/ P009719/1 and in part by by H2020-MSCA-RISE-2015 under Grant 690750. The work of Z. Yang was supported in part by the National Natural Science Foundation of China under Grants 61701118 and 61571128, and in part by the Natural Science Foundation of Fujian Province, China, under Grant 2018J05101. The review of this paper was coordinated by Prof. S. Zhang. (Corresponding author: Donghong Cai.) D. Cai and P. Fan are with the Institute of Mobile Communications, South-west Jiaotong University, Chengdu 610031, China (e-mail:,[email protected]; [email protected]).
Publisher Copyright:
© 1967-2012 IEEE.
PY - 2018/10
Y1 - 2018/10
N2 - In this paper, we investigate the outage performance of hybrid automatic repeat request with chase combining (HARQ-CC) assisted downlink non-orthogonal multiple access (NOMA) systems. A closed-form expression of the individual outage probability and the diversity gain are obtained firstly. Based on the developed analytical outage probability, a tradeoff between the minimum number of retransmissions and the transmit power allocation coefficient is then provided for a given target rate. The provided simulation results demonstrate the accuracy of the developed analytical results. Moreover, it is shown that NOMA combined with the HARQ-CC can achieve a significant advantage when only average channel state information is known at the transmitter. Particularly, the performance of the user with less transmit power in NOMA systems can be efficiently improved by utilizing HARQ-CC.
AB - In this paper, we investigate the outage performance of hybrid automatic repeat request with chase combining (HARQ-CC) assisted downlink non-orthogonal multiple access (NOMA) systems. A closed-form expression of the individual outage probability and the diversity gain are obtained firstly. Based on the developed analytical outage probability, a tradeoff between the minimum number of retransmissions and the transmit power allocation coefficient is then provided for a given target rate. The provided simulation results demonstrate the accuracy of the developed analytical results. Moreover, it is shown that NOMA combined with the HARQ-CC can achieve a significant advantage when only average channel state information is known at the transmitter. Particularly, the performance of the user with less transmit power in NOMA systems can be efficiently improved by utilizing HARQ-CC.
KW - chase combining
KW - hybrid automatic repeat request
KW - Non-orthogonal multiple access (NOMA)
KW - quality of service
UR - http://www.scopus.com/inward/record.url?scp=85049682410&partnerID=8YFLogxK
U2 - 10.1109/TVT.2018.2854184
DO - 10.1109/TVT.2018.2854184
M3 - Article
AN - SCOPUS:85049682410
SN - 0018-9545
VL - 67
SP - 10033
EP - 10038
JO - IEEE Transactions on Vehicular Technology
JF - IEEE Transactions on Vehicular Technology
IS - 10
M1 - 8408492
ER -