Exploiting active RIS in NOMA networks with hardware impairments
Active reconfigurable intelligent surface (ARIS) is a promising way to compensate for
multiplicative fading attenuation by amplifying and reflecting event signals to selected users …
multiplicative fading attenuation by amplifying and reflecting event signals to selected users …
Transmit power minimization for STAR-RIS-empowered uplink NOMA system
H Ma, H Wang, H Li, Y Feng - IEEE Wireless Communications …, 2022 - ieeexplore.ieee.org
Different from conventional reconfigurable intelligent surface, simultaneously transmitting
and reflecting reconfigurable intelligent surface (STAR-RIS) can provide service for the …
and reflecting reconfigurable intelligent surface (STAR-RIS) can provide service for the …
Ris-assisted cooperative NOMA with SWIPT
This letter proposes a two-stage reconfigurable intelligent surface (RIS)-assisted
transmission scheme for cooperative non-orthogonal multiple access networks with …
transmission scheme for cooperative non-orthogonal multiple access networks with …
Multiuser NOMA with multiple reconfigurable intelligent surfaces for backscatter communication in a symbiotic cognitive radio network
DKP Asiedu, JH Yun - IEEE Transactions on Vehicular …, 2022 - ieeexplore.ieee.org
In this paper, we develop an optimization framework for the symbiotic operation of a
multiuser cognitive radio network (CRN) consisting of a non-orthogonal multiple access …
multiuser cognitive radio network (CRN) consisting of a non-orthogonal multiple access …
Two-timescale synchronization and migration for digital twin networks: A multi-agent deep reinforcement learning approach
Digital twins (DTs) have emerged as a promising enabler for representing the real-time
states of physical worlds and realizing self-sustaining systems. In practice, DTs of physical …
states of physical worlds and realizing self-sustaining systems. In practice, DTs of physical …
Joint active and passive beamforming optimization for multi-IRS-assisted wireless communication systems: A covariance matrix adaptation evolution strategy
Intelligent reflecting surface (IRS) is applied in 5G and 6G to improve communication
performance by reconfiguring signal propagation environments while maintaining low …
performance by reconfiguring signal propagation environments while maintaining low …
Channel aging-aware precoding for RIS-aided multi-user communications
Reconfigurable intelligent surfaces (RISs) have received intensive attention for their
outstanding potential of reconstructing wireless propagation channels to significantly …
outstanding potential of reconstructing wireless propagation channels to significantly …
Performance analysis of STAR-RIS assisted secure cognitive NOMA-HARQ networks
In this letter, we carry out the performance analysis of the simultaneously transmitting and
reflecting reconfigurable intelligent surface (STAR-RIS) in the hybrid automatic repeat …
reflecting reconfigurable intelligent surface (STAR-RIS) in the hybrid automatic repeat …
Robust transmit and reflect beamforming design for IRS-assisted Offshore NOMA communication systems
We consider a non-orthogonal multiple access (NOMA) offshore communication system,
where an intelligent reflecting surface (IRS) is deployed to assist the communication from a …
where an intelligent reflecting surface (IRS) is deployed to assist the communication from a …
Outage performance and AoI minimization of HARQ-IR-RIS aided IoT networks
In this paper, reconfigurable intelligent surface (RIS) and hybrid automatic repeat request
with incremental redundancy (HARQ-IR) are amalgamated to lower power expenditure …
with incremental redundancy (HARQ-IR) are amalgamated to lower power expenditure …