PMID- 37346559
OWN - NLM
STAT- PubMed-not-MEDLINE
LR  - 20230626
IS  - 2376-5992 (Electronic)
IS  - 2376-5992 (Linking)
VI  - 9
DP  - 2023
TI  - Achievable rate as affected by active elements distribution in reconfigurable 
      intelligent surfaces for wireless communication.
PG  - e1207
LID - 10.7717/peerj-cs.1207 [doi]
LID - e1207
AB  - To increase constantly the achievable rate of reconfigurable intelligent surfaces 
      (RISs)-assisted communication systems, the traditional approaches are to deploy a 
      few active elements randomly on the passive RISs. However, the effect of the 
      geometry distribution of the deployment of the active elements is ignored in 
      performance analysis. In this article, three types of geometry distribution with 
      active elements on RISs, denoted as random distribution, uniform distribution, 
      and eight-queens distribution, are discussed to analyze the affect on achievable 
      rate in RISs-assisted wireless communications. Specifically, the optimal 
      achievable rate is obtained according to the predefined codebook, and the 
      codebook is determined by the reflection beamforming codeword related to the 
      active elements geometry distribution in RISs. Simulation results show that 
      different geometry distribution of active elements in RISs causes different 
      influences to achievable rates. The eight-queens distribution proposed in this 
      article for active elements in RISs brings the highest achievable rate compared 
      with random distribution and uniform distribution. In the passive RISs surface, 
      the distribution of a few active elements is limited by the eight-queens, further 
      enhancing the achievable rate of the wireless communication system. This method 
      has a 7% improvement over the conventional method.
CI  - (c) 2023 Li et al.
FAU - Li, Dongming
AU  - Li D
AD  - College of Information Technology, Jilin Agricultural University, Changchun, 
      China.
FAU - Li, Sixu
AU  - Li S
AD  - College of Information Technology, Jilin Agricultural University, Changchun, 
      China.
FAU - Wu, Guilu
AU  - Wu G
AD  - State Key Laboratory of Networking and Switching Technology, Beijing University 
      of Posts and Telecommunications, Beijing, China.
AD  - School of Information and Communication Engineering, Hainan University, Haikou, 
      China.
FAU - Zhao, Chunxi
AU  - Zhao C
AD  - Information Center, Jilin Agricultural University, Changchun, China.
LA  - eng
PT  - Journal Article
DEP - 20230112
PL  - United States
TA  - PeerJ Comput Sci
JT  - PeerJ. Computer science
JID - 101660598
PMC - PMC10280233
OTO - NOTNLM
OT  - Achievable rate
OT  - Active elements distribution
OT  - Reconfigurable intelligent surfaces
COIS- The authors declare that they have no competing interests.
EDAT- 2023/06/22 13:09
MHDA- 2023/06/22 13:10
PMCR- 2023/01/12
CRDT- 2023/06/22 09:53
PHST- 2022/09/23 00:00 [received]
PHST- 2022/12/14 00:00 [accepted]
PHST- 2023/06/22 13:10 [medline]
PHST- 2023/06/22 13:09 [pubmed]
PHST- 2023/06/22 09:53 [entrez]
PHST- 2023/01/12 00:00 [pmc-release]
AID - cs-1207 [pii]
AID - 10.7717/peerj-cs.1207 [doi]
PST - epublish
SO  - PeerJ Comput Sci. 2023 Jan 12;9:e1207. doi: 10.7717/peerj-cs.1207. eCollection 
      2023.