TY - JOUR
T1 - Distributed IRS With Statistical Passive Beamforming for MISO Communications
AU - Gao, Yuwei
AU - Xu, Jindan
AU - Xu, Wei
AU - Ng, Derrick Wing Kwan
AU - Alouini, Mohamed-Slim
N1 - KAUST Repository Item: Exported on 2021-02-23
PY - 2021/2
Y1 - 2021/2
N2 - Intelligent reflecting surface (IRS) has recently been identified as a prominent technology with the ability of enhancing wireless communication by dynamically manipulating the propagation environment. This letter investigates a multiple-input single-output (MISO) system deploying distributed IRSs. For practical considerations, we propose an efficient design of passive reflecting beamforming for the IRSs to exploit statistical channel state information (CSI) and analyze the achievable rate of the network taking into account the impact of CSI estimation error. The ergodic achievable rate is derived in a closed form, which provides insightful system design guidelines. Numerical results confirm the accuracy of the derived results and unveil the performance superiority of the proposed distributed IRS deployment over the conventional centralized deployment.
AB - Intelligent reflecting surface (IRS) has recently been identified as a prominent technology with the ability of enhancing wireless communication by dynamically manipulating the propagation environment. This letter investigates a multiple-input single-output (MISO) system deploying distributed IRSs. For practical considerations, we propose an efficient design of passive reflecting beamforming for the IRSs to exploit statistical channel state information (CSI) and analyze the achievable rate of the network taking into account the impact of CSI estimation error. The ergodic achievable rate is derived in a closed form, which provides insightful system design guidelines. Numerical results confirm the accuracy of the derived results and unveil the performance superiority of the proposed distributed IRS deployment over the conventional centralized deployment.
UR - http://hdl.handle.net/10754/667545
UR - https://ieeexplore.ieee.org/document/9200774/
U2 - 10.1109/lwc.2020.3024952
DO - 10.1109/lwc.2020.3024952
M3 - Article
SN - 2162-2337
VL - 10
SP - 221
EP - 225
JO - IEEE Wireless Communications Letters
JF - IEEE Wireless Communications Letters
IS - 2
ER -