TY - JOUR
T1 - On the Application of BAC-NOMA to 6G umMTC
AU - DIng, Zhiguo
AU - Poor, H. Vincent
N1 - Funding Information:
Manuscript received March 26, 2021; revised April 14, 2021; accepted April 27, 2021. Date of publication May 3, 2021; date of current version August 12, 2021. The work of Zhiguo Ding was supported by the UK EPSRC under grant number EP/P009719/2 and by H2020 H2020-MSCA-RISE-2020 under grant number 101006411. The work of H. Vincent Poor was supported by the U.S. National Science Foundation under Grant CCF-1908308. The associate editor coordinating the review of this letter and approving it for publication was H. Tabassum. (Corresponding author: Zhiguo Ding.) Zhiguo Ding is with the Department of Electrical and Computer Engineering, Princeton University, Princeton, NJ 08544 USA, and also with the School of Electrical and Electronic Engineering, The University of Manchester, Manchester M13 9PL, U.K. (e-mail: [email protected]).
Publisher Copyright:
© 1997-2012 IEEE.
PY - 2021/8
Y1 - 2021/8
N2 - This letter studies the application of backscatter communications (BackCom) assisted non-orthogonal multiple access (BAC-NOMA) to the envisioned sixth-generation (6G) ultra-massive machine type communications (umMTC). In particular, the proposed BAC-NOMA transmission scheme can realize simultaneous energy and spectrum cooperation between uplink and downlink users, which is important to support massive connectivity and stringent energy constraints in umMTC. Furthermore, a resource allocation problem for maximizing the uplink throughput and suppressing the interference between downlink and uplink transmission is formulated as an optimization problem and the corresponding optimal resource allocation policy is obtained. Computer simulations are provided to demonstrate the superior performance of BAC-NOMA.
AB - This letter studies the application of backscatter communications (BackCom) assisted non-orthogonal multiple access (BAC-NOMA) to the envisioned sixth-generation (6G) ultra-massive machine type communications (umMTC). In particular, the proposed BAC-NOMA transmission scheme can realize simultaneous energy and spectrum cooperation between uplink and downlink users, which is important to support massive connectivity and stringent energy constraints in umMTC. Furthermore, a resource allocation problem for maximizing the uplink throughput and suppressing the interference between downlink and uplink transmission is formulated as an optimization problem and the corresponding optimal resource allocation policy is obtained. Computer simulations are provided to demonstrate the superior performance of BAC-NOMA.
KW - backscatter communications
KW - full-duplex communications
KW - Non-orthogonal multiple access
UR - http://www.scopus.com/inward/record.url?scp=85105878651&partnerID=8YFLogxK
U2 - 10.1109/LCOMM.2021.3077219
DO - 10.1109/LCOMM.2021.3077219
M3 - Article
AN - SCOPUS:85105878651
SN - 1089-7798
VL - 25
SP - 2678
EP - 2682
JO - IEEE Communications Letters
JF - IEEE Communications Letters
IS - 8
M1 - 9420716
ER -