TY - JOUR
T1 - On the performance of non-orthogonal multiple access in short-packet communications
AU - Yu, Yuehua
AU - Chen, He
AU - Li, Yonghui
AU - Ding, Zhiguo
AU - Vucetic, Branka
N1 - Funding Information:
Manuscript received November 27, 2017; accepted December 18, 2017. Date of publication December 22, 2017; date of current version March 8, 2018. This work was supported in part by the Australian Research Council under grants FL160100032 and DP150104019. The work of Y. Li was supported by ARC under grant DP150104019 and NSFC under grants 61531006 and 61772233. The associate editor coordinating the review of this paper and approving it for publication was F. Wang. (Corresponding author: He Chen.) Y. Yu, H. Chen, Y. Li, and B. Vucetic are with the School of Electrical and Information Engineering, The University of Sydney, Sydney, NSW 2006, Australia (e-mail: [email protected]; he.chen@ sydney.edu.au; [email protected]; [email protected]).
Publisher Copyright:
© 1997-2012 IEEE.
PY - 2018/3
Y1 - 2018/3
N2 - This letter investigates the performance of non-orthogonal multiple access (NOMA) in short-packet communications. We aim to answer a fundamental question-for given reliability requirements of users: how much physical-layer transmission latency can NOMA reduce when compared with orthogonal multiple access in the finite blocklength regime? We derive closed-form expressions for the block error rates of users in NOMA. Further, we obtain the near-optimal power allocation coefficients and blocklength to ensure certain reliability. Numerical results validate our theoretical analysis and demonstrate the superior performance of NOMA in reducing transmission latency.
AB - This letter investigates the performance of non-orthogonal multiple access (NOMA) in short-packet communications. We aim to answer a fundamental question-for given reliability requirements of users: how much physical-layer transmission latency can NOMA reduce when compared with orthogonal multiple access in the finite blocklength regime? We derive closed-form expressions for the block error rates of users in NOMA. Further, we obtain the near-optimal power allocation coefficients and blocklength to ensure certain reliability. Numerical results validate our theoretical analysis and demonstrate the superior performance of NOMA in reducing transmission latency.
KW - finite blocklength (FBL)
KW - Non-orthogonal multiple access (NOMA)
KW - short-packet
KW - transmission latency
UR - https://www.scopus.com/pages/publications/85039799100
U2 - 10.1109/LCOMM.2017.2786252
DO - 10.1109/LCOMM.2017.2786252
M3 - Article
AN - SCOPUS:85039799100
SN - 1089-7798
VL - 22
SP - 590
EP - 593
JO - IEEE Communications Letters
JF - IEEE Communications Letters
IS - 3
ER -