Matches in SemOpenAlex for { <https://semopenalex.org/work/W4385328049> ?p ?o ?g. }
Showing items 1 to 83 of
83
with 100 items per page.
- W4385328049 abstract "Wireless communication is enabling billions of people to connect to each other and the internet, transforming every sector of the economy, and building the foundations for powerful new technologies that hold great promise to improve lives at an unprecedented rate and scale. The rapid increase in the number of devices and the associated demands for higher data rates and broader network coverage fuels the need for more robust wireless technologies. The key technology identified to address this problem is referred to as Cell-Free Massive MIMO (CF-mMIMO). CF-mMIMO is accompanied by many challenges, one of which is efficiently allocating limited resources. In this paper, we focus on a major resource allocation problem in wireless networks, namely the Pilot Assignment problem (PA). We show that PA is strongly NP-hard and that it does not admit a polynomial-time constant-factor approximation algorithm. Further, we show that PA cannot be approximated in polynomial time within $mathcal{O}(K^2)$ (where $K$ is the number of users) when the system consists of at least three pilots. Finally, we present an approximation lower bound of $1.058$ (resp. $epsilon|K|^2$, for $epsilon >0$) in special cases where the system consists of exactly two (resp. three) pilots." @default.
- W4385328049 created "2023-07-28" @default.
- W4385328049 creator A5001963248 @default.
- W4385328049 creator A5032984450 @default.
- W4385328049 date "2023-07-26" @default.
- W4385328049 modified "2023-10-14" @default.
- W4385328049 title "Complexity results for the Pilot Assignment problem in Cell-Free Massive MIMO" @default.
- W4385328049 doi "https://doi.org/10.48550/arxiv.2307.14186" @default.
- W4385328049 hasPublicationYear "2023" @default.
- W4385328049 type Work @default.
- W4385328049 citedByCount "0" @default.
- W4385328049 crossrefType "posted-content" @default.
- W4385328049 hasAuthorship W4385328049A5001963248 @default.
- W4385328049 hasAuthorship W4385328049A5032984450 @default.
- W4385328049 hasBestOaLocation W43853280491 @default.
- W4385328049 hasConcept C108037233 @default.
- W4385328049 hasConcept C110875604 @default.
- W4385328049 hasConcept C11413529 @default.
- W4385328049 hasConcept C120314980 @default.
- W4385328049 hasConcept C120665830 @default.
- W4385328049 hasConcept C121332964 @default.
- W4385328049 hasConcept C126255220 @default.
- W4385328049 hasConcept C127162648 @default.
- W4385328049 hasConcept C134306372 @default.
- W4385328049 hasConcept C136764020 @default.
- W4385328049 hasConcept C192209626 @default.
- W4385328049 hasConcept C199360897 @default.
- W4385328049 hasConcept C206345919 @default.
- W4385328049 hasConcept C207987634 @default.
- W4385328049 hasConcept C26517878 @default.
- W4385328049 hasConcept C2777027219 @default.
- W4385328049 hasConcept C29202148 @default.
- W4385328049 hasConcept C311688 @default.
- W4385328049 hasConcept C31258907 @default.
- W4385328049 hasConcept C33923547 @default.
- W4385328049 hasConcept C38652104 @default.
- W4385328049 hasConcept C41008148 @default.
- W4385328049 hasConcept C555944384 @default.
- W4385328049 hasConcept C76155785 @default.
- W4385328049 hasConcept C77553402 @default.
- W4385328049 hasConcept C90119067 @default.
- W4385328049 hasConceptScore W4385328049C108037233 @default.
- W4385328049 hasConceptScore W4385328049C110875604 @default.
- W4385328049 hasConceptScore W4385328049C11413529 @default.
- W4385328049 hasConceptScore W4385328049C120314980 @default.
- W4385328049 hasConceptScore W4385328049C120665830 @default.
- W4385328049 hasConceptScore W4385328049C121332964 @default.
- W4385328049 hasConceptScore W4385328049C126255220 @default.
- W4385328049 hasConceptScore W4385328049C127162648 @default.
- W4385328049 hasConceptScore W4385328049C134306372 @default.
- W4385328049 hasConceptScore W4385328049C136764020 @default.
- W4385328049 hasConceptScore W4385328049C192209626 @default.
- W4385328049 hasConceptScore W4385328049C199360897 @default.
- W4385328049 hasConceptScore W4385328049C206345919 @default.
- W4385328049 hasConceptScore W4385328049C207987634 @default.
- W4385328049 hasConceptScore W4385328049C26517878 @default.
- W4385328049 hasConceptScore W4385328049C2777027219 @default.
- W4385328049 hasConceptScore W4385328049C29202148 @default.
- W4385328049 hasConceptScore W4385328049C311688 @default.
- W4385328049 hasConceptScore W4385328049C31258907 @default.
- W4385328049 hasConceptScore W4385328049C33923547 @default.
- W4385328049 hasConceptScore W4385328049C38652104 @default.
- W4385328049 hasConceptScore W4385328049C41008148 @default.
- W4385328049 hasConceptScore W4385328049C555944384 @default.
- W4385328049 hasConceptScore W4385328049C76155785 @default.
- W4385328049 hasConceptScore W4385328049C77553402 @default.
- W4385328049 hasConceptScore W4385328049C90119067 @default.
- W4385328049 hasLocation W43853280491 @default.
- W4385328049 hasOpenAccess W4385328049 @default.
- W4385328049 hasPrimaryLocation W43853280491 @default.
- W4385328049 hasRelatedWork W1916752577 @default.
- W4385328049 hasRelatedWork W2020600041 @default.
- W4385328049 hasRelatedWork W2035335961 @default.
- W4385328049 hasRelatedWork W2060490057 @default.
- W4385328049 hasRelatedWork W2216908642 @default.
- W4385328049 hasRelatedWork W2360721287 @default.
- W4385328049 hasRelatedWork W245150611 @default.
- W4385328049 hasRelatedWork W2650132744 @default.
- W4385328049 hasRelatedWork W2810697512 @default.
- W4385328049 hasRelatedWork W4283067488 @default.
- W4385328049 isParatext "false" @default.
- W4385328049 isRetracted "false" @default.
- W4385328049 workType "article" @default.