TY  - INPR
AV  - public
SN  - 0018-9545
Y1  - 2024/02/06/
TI  - FAS-assisted NOMA Short-Packet Communication Systems
UR  - http://dx.doi.org/10.1109/tvt.2024.3363115
EP  - 6
ID  - discovery10188057
N2  - In this letter, we investigate a fluid antenna system (FAS)-assisted downlink non-orthogonal multiple access (NOMA) for short-packet communications. The base station (BS) adopts a single fixed antenna, while both the central user (CU) and the cell-edge user (CEU) are equipped with a FAS. Each FAS comprises N flexible positions (also known as ports), linked to N arbitrarily correlated Rayleigh fading channels. We derive expressions for the average block error rate (BLER) of the FAS-assisted NOMA system and provide asymptotic BLER expressions. We determine that the diversity order for CU and CEU is N , indicating that the system performance can be considerably improved by increasing N . Simulation results validate the great performance of FAS.
SP  - 1
N1  - This version is the author accepted manuscript. For information on re-use, please refer to the publisher?s terms and conditions.
JF  - IEEE Transactions on Vehicular Technology
PB  - Institute of Electrical and Electronics Engineers (IEEE)
A1  - Zheng, Jianchao
A1  - Wu, Tuo
A1  - Lai, Xiazhi
A1  - Pan, Cunhua
A1  - Elkashlan, Maged
A1  - Wong, Kai-Kit
KW  - Block error rate (BLER); flexible-position antenna; 
fluid antenna system (FAS); non-orthogonal multiple access (NOMA); 
short-packet communication
ER  -