Matches in SemOpenAlex for { <https://semopenalex.org/work/W4308246002> ?p ?o ?g. }
Showing items 1 to 65 of
65
with 100 items per page.
- W4308246002 abstract "Reconfigurable intelligent surface (RIS) has attracted extensive attention in recent years. However, most research focuses on the scenario of the narrowband and/or instantaneous channel state information (CSI), while wide bandwidth with the use of millimeter-wave (mmWave) (including sub-Terahertz) spectrum is a major trend in next-generation wireless communications, and statistical CSI is more practical to obtain in realistic systems. Thus, we {consider} the ergodic achievable rate of RIS-assisted mmWave multiple-input multiple-output orthogonal frequency division multiplexing communication systems. The widely used Saleh-Valenzuela channel model is adopted to characterize the mmWave channels and only the statistical CSI is available. We first derive the approximations of the ergodic achievable rate by means of the majorization theory and Jensen's inequality. Then, an alternating optimization based algorithm is proposed to maximize the ergodic achievable rate by jointly designing the transmit covariance matrix at the base station and the reflection coefficients at the RIS. Specifically, the design of the transmit covariance matrix is transformed into a power allocation problem and solved by spatial-frequency water-filling. The reflection coefficients are optimized by the Riemannian conjugate gradient algorithm. Simulation results corroborate the effectiveness of the proposed algorithms." @default.
- W4308246002 created "2022-11-09" @default.
- W4308246002 creator A5016127527 @default.
- W4308246002 creator A5031516992 @default.
- W4308246002 creator A5036206050 @default.
- W4308246002 date "2022-05-26" @default.
- W4308246002 modified "2023-09-24" @default.
- W4308246002 title "Ergodic Achievable Rate Maximization of RIS-assisted Millimeter-Wave MIMO-OFDM Communication Systems" @default.
- W4308246002 doi "https://doi.org/10.48550/arxiv.2205.13286" @default.
- W4308246002 hasPublicationYear "2022" @default.
- W4308246002 type Work @default.
- W4308246002 citedByCount "0" @default.
- W4308246002 crossrefType "posted-content" @default.
- W4308246002 hasAuthorship W4308246002A5016127527 @default.
- W4308246002 hasAuthorship W4308246002A5031516992 @default.
- W4308246002 hasAuthorship W4308246002A5036206050 @default.
- W4308246002 hasBestOaLocation W43082460021 @default.
- W4308246002 hasConcept C11413529 @default.
- W4308246002 hasConcept C122044880 @default.
- W4308246002 hasConcept C126255220 @default.
- W4308246002 hasConcept C127162648 @default.
- W4308246002 hasConcept C127413603 @default.
- W4308246002 hasConcept C134306372 @default.
- W4308246002 hasConcept C148063708 @default.
- W4308246002 hasConcept C207987634 @default.
- W4308246002 hasConcept C24326235 @default.
- W4308246002 hasConcept C2776096036 @default.
- W4308246002 hasConcept C2776257435 @default.
- W4308246002 hasConcept C33923547 @default.
- W4308246002 hasConcept C40409654 @default.
- W4308246002 hasConcept C41008148 @default.
- W4308246002 hasConcept C555944384 @default.
- W4308246002 hasConcept C76155785 @default.
- W4308246002 hasConceptScore W4308246002C11413529 @default.
- W4308246002 hasConceptScore W4308246002C122044880 @default.
- W4308246002 hasConceptScore W4308246002C126255220 @default.
- W4308246002 hasConceptScore W4308246002C127162648 @default.
- W4308246002 hasConceptScore W4308246002C127413603 @default.
- W4308246002 hasConceptScore W4308246002C134306372 @default.
- W4308246002 hasConceptScore W4308246002C148063708 @default.
- W4308246002 hasConceptScore W4308246002C207987634 @default.
- W4308246002 hasConceptScore W4308246002C24326235 @default.
- W4308246002 hasConceptScore W4308246002C2776096036 @default.
- W4308246002 hasConceptScore W4308246002C2776257435 @default.
- W4308246002 hasConceptScore W4308246002C33923547 @default.
- W4308246002 hasConceptScore W4308246002C40409654 @default.
- W4308246002 hasConceptScore W4308246002C41008148 @default.
- W4308246002 hasConceptScore W4308246002C555944384 @default.
- W4308246002 hasConceptScore W4308246002C76155785 @default.
- W4308246002 hasLocation W43082460021 @default.
- W4308246002 hasOpenAccess W4308246002 @default.
- W4308246002 hasPrimaryLocation W43082460021 @default.
- W4308246002 hasRelatedWork W1982454348 @default.
- W4308246002 hasRelatedWork W2079355059 @default.
- W4308246002 hasRelatedWork W2100103239 @default.
- W4308246002 hasRelatedWork W2127594548 @default.
- W4308246002 hasRelatedWork W2355366102 @default.
- W4308246002 hasRelatedWork W2392409673 @default.
- W4308246002 hasRelatedWork W2541599980 @default.
- W4308246002 hasRelatedWork W2611998394 @default.
- W4308246002 hasRelatedWork W2793684801 @default.
- W4308246002 hasRelatedWork W4200278259 @default.
- W4308246002 isParatext "false" @default.
- W4308246002 isRetracted "false" @default.
- W4308246002 workType "article" @default.