@article{23332ca53a3b435caecba96c16fa9cab,
title = "Simultaneous Cellular and D2D Communications Exploiting Cooperative Uplink NOMA",
abstract = "A novel device-to-device (D2D) aided uplink transmission scheme exploiting non-orthogonal multiple access (termed as D2D-UNOMA) is proposed and investigated. In D2D-UNOMA, two similar gain near users (NUs) and a far user (FU) can transmit their information to the base station (BS) in two time slots. The NUs can directly communicate with the BS, whereas the FU requires assistance of one of the NUs to facilitate the communication. In addition, as part of D2D communications, one of the NUs can transmit to the other NU in the first phase, whereas the FU can transmit to a NU in the second phase. The performance of D2D-UNOMA is studied in terms of ergodic rate along with analytical formulation. Through numerical results, it is demonstrated that the proposed D2D-UNOMA can ameliorate the ergodic sum rate significantly compared to the conventional orthogonal multiple access. ",
keywords = "Device-to-device communication, nonorthogonal multiple access, successive interference cancellation, uplink",
author = "Kader, {Md Fazlul} and Islam, {S. M.Riazul} and Dobre, {Octavia A.}",
note = "Funding Information: Manuscript received February 4, 2021; accepted February 23, 2021. Date of publication February 24, 2021; date of current version June 10, 2021. This work was supported in part by Sejong University through its faculty research program (20212023), and in part by the Natural Sciences and Engineering Research Council of Canada (NSERC), through its Discovery program. The associate editor coordinating the review of this letter and approving it for publication was A. Radwan. (Md. Fazlul Kader and S. M. Riazul Islam contributed equally to this work.) (Corresponding author: Md. Fazlul Kader.) Md. Fazlul Kader is with the Department of Electrical and Electronic Engineering, University of Chittagong, Chittagong 4331, Bangladesh (e-mail: f.kader@cu.ac.bd). Publisher Copyright: {\textcopyright} 1997-2012 IEEE.",
year = "2021",
month = jun,
day = "10",
doi = "10.1109/LCOMM.2021.3062111",
language = "English",
volume = "25",
pages = "1848--1852",
journal = "IEEE Communications Letters",
issn = "1089-7798",
publisher = "Institute of Electrical and Electronics Engineers Inc.",
number = "6",
}
