TY - JOUR
T1 - Adaptive Relaying Protocol Design and Analysis for Short-Packet Cooperative NOMA
AU - Guo, Cheng
AU - Guo, Chongtao
AU - Zhang, Shengli
AU - Ding, Zhiguo
N1 - Funding Information:
This work was supported in part by the National Natural Science Foundation of China under Grants 62101339 and 62171291, in part by the Natural Science Foundation of Shenzhen under Grant JCYJ20190808114213987, and in part by the Major Key Project of Peng Cheng Laboratory under Grant PCL2021A15.
Publisher Copyright:
© 1967-2012 IEEE.
PY - 2023/2/1
Y1 - 2023/2/1
N2 - This paper designs and characterizes an adaptive relaying protocol in a short-packet cooperative non-orthogonal multiple access (NOMA) network. Particularly, a base station broadcasts a superposed signal to a strong user and a weak user with the help of a dedicated relay. Compared with the conventional fixed decode-and-forward relaying protocol (DFRP) and amplified-and-forward relaying protocol (AFRP), we propose a novel adaptive hybrid relaying protocol (AHRP) for a short-packet cooperative NOMA network, in which the dedicated relay chooses the transmission modes adaptively to help the information transmission of the weak user according to the comparison between the achievable data rates and the target data rates. Moveover, the ergodic rates of the two users are approximated with closed-form expressions and an asymptotic performance comparison among the DFRP, AFRP, and AHRP is also provided. Simulation results indicate that the proposed AHRP outperforms the DFRP and AFRP in terms of users' ergodic rates. Furthermore, the AHRP can achieve higher user rate and robustness than the DFRP, AFRP, and cooperative orthogonal multiple access under various network settings.
AB - This paper designs and characterizes an adaptive relaying protocol in a short-packet cooperative non-orthogonal multiple access (NOMA) network. Particularly, a base station broadcasts a superposed signal to a strong user and a weak user with the help of a dedicated relay. Compared with the conventional fixed decode-and-forward relaying protocol (DFRP) and amplified-and-forward relaying protocol (AFRP), we propose a novel adaptive hybrid relaying protocol (AHRP) for a short-packet cooperative NOMA network, in which the dedicated relay chooses the transmission modes adaptively to help the information transmission of the weak user according to the comparison between the achievable data rates and the target data rates. Moveover, the ergodic rates of the two users are approximated with closed-form expressions and an asymptotic performance comparison among the DFRP, AFRP, and AHRP is also provided. Simulation results indicate that the proposed AHRP outperforms the DFRP and AFRP in terms of users' ergodic rates. Furthermore, the AHRP can achieve higher user rate and robustness than the DFRP, AFRP, and cooperative orthogonal multiple access under various network settings.
KW - adaptive hybrid relaying protocol
KW - amplified-and-forward
KW - Cooperative non-orthogonal multiple access
KW - decode-and-forward
KW - short-packet transmission
UR - http://www.scopus.com/inward/record.url?scp=85139878105&partnerID=8YFLogxK
U2 - 10.1109/TVT.2022.3213726
DO - 10.1109/TVT.2022.3213726
M3 - Article
AN - SCOPUS:85139878105
SN - 0018-9545
VL - 72
SP - 2689
EP - 2694
JO - IEEE Transactions on Vehicular Technology
JF - IEEE Transactions on Vehicular Technology
IS - 2
ER -