Matches in SemOpenAlex for { <https://semopenalex.org/work/W4308481792> ?p ?o ?g. }
Showing items 1 to 69 of
69
with 100 items per page.
- W4308481792 abstract "Intelligent reflecting surfaces (IRS) consist of configurable meta-atoms, which can change the wireless propagation environment through design of their reflection coefficients. We consider a practical setting where (i) the IRS reflection coefficients are achieved by adjusting tunable elements embedded in the meta-atoms, (ii) the IRS reflection coefficients are affected by the incident angles of the incoming signals, (iii) the IRS is deployed in multi-path, time-varying channels, and (iv) the feedback link from the base station to the IRS has a low data rate. Conventional optimization-based IRS control protocols, which rely on channel estimation and conveying the optimized variables to the IRS, are not applicable in this setting due to the difficulty of channel estimation and the low feedback rate. Therefore, we develop a novel adaptive codebook-based limited feedback protocol where only a codeword index is transferred to the IRS. We propose two solutions for adaptive codebook design: random adjacency (RA) and deep neural network policy-based IRS control (DPIC), both of which only require the end-to-end compound channels. We further develop several augmented schemes based on the RA and DPIC. Numerical evaluations show that the data rate and average data rate over one coherence time are improved substantially by our schemes." @default.
- W4308481792 created "2022-11-12" @default.
- W4308481792 creator A5001355478 @default.
- W4308481792 creator A5015663944 @default.
- W4308481792 creator A5020399355 @default.
- W4308481792 creator A5054714866 @default.
- W4308481792 creator A5074403000 @default.
- W4308481792 creator A5076950802 @default.
- W4308481792 date "2021-12-03" @default.
- W4308481792 modified "2023-09-26" @default.
- W4308481792 title "Learning-Based Adaptive IRS Control with Limited Feedback Codebooks" @default.
- W4308481792 doi "https://doi.org/10.48550/arxiv.2112.01874" @default.
- W4308481792 hasPublicationYear "2021" @default.
- W4308481792 type Work @default.
- W4308481792 citedByCount "0" @default.
- W4308481792 crossrefType "posted-content" @default.
- W4308481792 hasAuthorship W4308481792A5001355478 @default.
- W4308481792 hasAuthorship W4308481792A5015663944 @default.
- W4308481792 hasAuthorship W4308481792A5020399355 @default.
- W4308481792 hasAuthorship W4308481792A5054714866 @default.
- W4308481792 hasAuthorship W4308481792A5074403000 @default.
- W4308481792 hasAuthorship W4308481792A5076950802 @default.
- W4308481792 hasBestOaLocation W43084817921 @default.
- W4308481792 hasConcept C105795698 @default.
- W4308481792 hasConcept C11413529 @default.
- W4308481792 hasConcept C127162648 @default.
- W4308481792 hasConcept C127759330 @default.
- W4308481792 hasConcept C153207627 @default.
- W4308481792 hasConcept C199360897 @default.
- W4308481792 hasConcept C2781181686 @default.
- W4308481792 hasConcept C31258907 @default.
- W4308481792 hasConcept C33923547 @default.
- W4308481792 hasConcept C41008148 @default.
- W4308481792 hasConcept C555944384 @default.
- W4308481792 hasConcept C57273362 @default.
- W4308481792 hasConcept C65682993 @default.
- W4308481792 hasConcept C76155785 @default.
- W4308481792 hasConcept C79403827 @default.
- W4308481792 hasConceptScore W4308481792C105795698 @default.
- W4308481792 hasConceptScore W4308481792C11413529 @default.
- W4308481792 hasConceptScore W4308481792C127162648 @default.
- W4308481792 hasConceptScore W4308481792C127759330 @default.
- W4308481792 hasConceptScore W4308481792C153207627 @default.
- W4308481792 hasConceptScore W4308481792C199360897 @default.
- W4308481792 hasConceptScore W4308481792C2781181686 @default.
- W4308481792 hasConceptScore W4308481792C31258907 @default.
- W4308481792 hasConceptScore W4308481792C33923547 @default.
- W4308481792 hasConceptScore W4308481792C41008148 @default.
- W4308481792 hasConceptScore W4308481792C555944384 @default.
- W4308481792 hasConceptScore W4308481792C57273362 @default.
- W4308481792 hasConceptScore W4308481792C65682993 @default.
- W4308481792 hasConceptScore W4308481792C76155785 @default.
- W4308481792 hasConceptScore W4308481792C79403827 @default.
- W4308481792 hasLocation W43084817921 @default.
- W4308481792 hasOpenAccess W4308481792 @default.
- W4308481792 hasPrimaryLocation W43084817921 @default.
- W4308481792 hasRelatedWork W2017549211 @default.
- W4308481792 hasRelatedWork W2044909681 @default.
- W4308481792 hasRelatedWork W2050865889 @default.
- W4308481792 hasRelatedWork W2061475625 @default.
- W4308481792 hasRelatedWork W2115542497 @default.
- W4308481792 hasRelatedWork W2139713618 @default.
- W4308481792 hasRelatedWork W2355032504 @default.
- W4308481792 hasRelatedWork W2360264381 @default.
- W4308481792 hasRelatedWork W2369939250 @default.
- W4308481792 hasRelatedWork W3033110060 @default.
- W4308481792 isParatext "false" @default.
- W4308481792 isRetracted "false" @default.
- W4308481792 workType "article" @default.