Matches in SemOpenAlex for { <https://semopenalex.org/work/W4280538505> ?p ?o ?g. }
Showing items 1 to 85 of
85
with 100 items per page.
- W4280538505 abstract "Precoding design for maximizing weighted sum-rate (WSR) is a fundamental problem for downlink of massive multi-user multiple-input multiple-output (MU-MIMO) systems. It is well-known that this problem is generally NP-hard due to the presence of multi-user interference. The weighted minimum mean-square error (WMMSE) algorithm is a popular approach for WSR maximization. However, its computational complexity is cubic in the number of base station (BS) antennas, which is unaffordable when the BS is equipped with a large antenna array. In this paper, we consider the WSR maximization problem with either a sum-power constraint (SPC) or per-antenna power constraints (PAPCs). For the former, we prove that any nontrivial stationary point must have a low-dimensional subspace structure, and then propose a reduced-WMMSE (R-WMMSE) with linear complexity by exploiting the solution structure. For the latter, we propose a linear-complexity WMMSE approach, named PAPC-WMMSE, by using a novel recursive design of the algorithm. Both R-WMMSE and PAPC-WMMSE have simple closed-form updates and guaranteed convergence to stationary points. Simulation results verify the efficacy of the proposed designs, especially the much lower complexity as compared to the state-of-the-art approaches for massive MU-MIMO systems." @default.
- W4280538505 created "2022-05-22" @default.
- W4280538505 creator A5053762553 @default.
- W4280538505 creator A5059252324 @default.
- W4280538505 creator A5059780514 @default.
- W4280538505 creator A5084117570 @default.
- W4280538505 date "2022-05-12" @default.
- W4280538505 modified "2023-09-29" @default.
- W4280538505 title "Rethinking WMMSE: Can Its Complexity Scale Linearly With the Number of BS Antennas?" @default.
- W4280538505 doi "https://doi.org/10.48550/arxiv.2205.06225" @default.
- W4280538505 hasPublicationYear "2022" @default.
- W4280538505 type Work @default.
- W4280538505 citedByCount "0" @default.
- W4280538505 crossrefType "posted-content" @default.
- W4280538505 hasAuthorship W4280538505A5053762553 @default.
- W4280538505 hasAuthorship W4280538505A5059252324 @default.
- W4280538505 hasAuthorship W4280538505A5059780514 @default.
- W4280538505 hasAuthorship W4280538505A5084117570 @default.
- W4280538505 hasBestOaLocation W42805385051 @default.
- W4280538505 hasConcept C105795698 @default.
- W4280538505 hasConcept C11413529 @default.
- W4280538505 hasConcept C114614502 @default.
- W4280538505 hasConcept C126255220 @default.
- W4280538505 hasConcept C134306372 @default.
- W4280538505 hasConcept C138660444 @default.
- W4280538505 hasConcept C160562895 @default.
- W4280538505 hasConcept C162324750 @default.
- W4280538505 hasConcept C179799912 @default.
- W4280538505 hasConcept C184720557 @default.
- W4280538505 hasConcept C185429906 @default.
- W4280538505 hasConcept C207987634 @default.
- W4280538505 hasConcept C21822782 @default.
- W4280538505 hasConcept C2524010 @default.
- W4280538505 hasConcept C2776036281 @default.
- W4280538505 hasConcept C2776330181 @default.
- W4280538505 hasConcept C2777303404 @default.
- W4280538505 hasConcept C32834561 @default.
- W4280538505 hasConcept C33923547 @default.
- W4280538505 hasConcept C41008148 @default.
- W4280538505 hasConcept C50522688 @default.
- W4280538505 hasConcept C54197355 @default.
- W4280538505 hasConcept C68649174 @default.
- W4280538505 hasConcept C76155785 @default.
- W4280538505 hasConcept C90652560 @default.
- W4280538505 hasConceptScore W4280538505C105795698 @default.
- W4280538505 hasConceptScore W4280538505C11413529 @default.
- W4280538505 hasConceptScore W4280538505C114614502 @default.
- W4280538505 hasConceptScore W4280538505C126255220 @default.
- W4280538505 hasConceptScore W4280538505C134306372 @default.
- W4280538505 hasConceptScore W4280538505C138660444 @default.
- W4280538505 hasConceptScore W4280538505C160562895 @default.
- W4280538505 hasConceptScore W4280538505C162324750 @default.
- W4280538505 hasConceptScore W4280538505C179799912 @default.
- W4280538505 hasConceptScore W4280538505C184720557 @default.
- W4280538505 hasConceptScore W4280538505C185429906 @default.
- W4280538505 hasConceptScore W4280538505C207987634 @default.
- W4280538505 hasConceptScore W4280538505C21822782 @default.
- W4280538505 hasConceptScore W4280538505C2524010 @default.
- W4280538505 hasConceptScore W4280538505C2776036281 @default.
- W4280538505 hasConceptScore W4280538505C2776330181 @default.
- W4280538505 hasConceptScore W4280538505C2777303404 @default.
- W4280538505 hasConceptScore W4280538505C32834561 @default.
- W4280538505 hasConceptScore W4280538505C33923547 @default.
- W4280538505 hasConceptScore W4280538505C41008148 @default.
- W4280538505 hasConceptScore W4280538505C50522688 @default.
- W4280538505 hasConceptScore W4280538505C54197355 @default.
- W4280538505 hasConceptScore W4280538505C68649174 @default.
- W4280538505 hasConceptScore W4280538505C76155785 @default.
- W4280538505 hasConceptScore W4280538505C90652560 @default.
- W4280538505 hasLocation W42805385051 @default.
- W4280538505 hasOpenAccess W4280538505 @default.
- W4280538505 hasPrimaryLocation W42805385051 @default.
- W4280538505 hasRelatedWork W1577009220 @default.
- W4280538505 hasRelatedWork W2113051152 @default.
- W4280538505 hasRelatedWork W2123135583 @default.
- W4280538505 hasRelatedWork W2123671211 @default.
- W4280538505 hasRelatedWork W2151890921 @default.
- W4280538505 hasRelatedWork W2792091337 @default.
- W4280538505 hasRelatedWork W2794690389 @default.
- W4280538505 hasRelatedWork W2957535055 @default.
- W4280538505 hasRelatedWork W2990410399 @default.
- W4280538505 hasRelatedWork W4283759334 @default.
- W4280538505 isParatext "false" @default.
- W4280538505 isRetracted "false" @default.
- W4280538505 workType "article" @default.