Matches in SemOpenAlex for { <https://semopenalex.org/work/W2117424426> ?p ?o ?g. }
Showing items 1 to 86 of
86
with 100 items per page.
- W2117424426 endingPage "2029" @default.
- W2117424426 startingPage "2024" @default.
- W2117424426 abstract "We consider the problem of pilot design for channel estimation in multiple-input multiple-output (MIMO) orthogonal frequency division multiplexing (OFDM) systems in the presence of virtual carriers. The design criterion is the average mean-square error (MSE) of the least square (LS) estimates of the channel frequency response over the data carriers. To maximize bandwidth efficiency, the number of pilots is set to its minimum which is equal to the number of unknown channel coefficients. Both the phase shift orthogonal and disjoint pilot schemes are investigated. For a given pilot placement, a closed-form expression for the pilot power distribution for the disjoint scheme is provided. It is found that the optimal power distribution allocates less power to the pilots that are close to the virtual carriers. Pilot placement is obtained using an exhaustive search. The latter is too complex in systems with large number of subcarriers. A suboptimum pilot placement design for the disjoint pilot scheme is presented. It is shown that, unlike fully loaded systems where the two pilot design schemes have similar performance, in the presence of virtual carriers the optimal disjoint scheme not only has lower complexity but also yields more accurate channel estimation and bit error rate performance." @default.
- W2117424426 created "2016-06-24" @default.
- W2117424426 creator A5053514346 @default.
- W2117424426 creator A5057324156 @default.
- W2117424426 creator A5058104588 @default.
- W2117424426 date "2009-05-01" @default.
- W2117424426 modified "2023-10-09" @default.
- W2117424426 title "Pilot Design for MIMO OFDM Systems With Virtual Carriers" @default.
- W2117424426 cites W2095842100 @default.
- W2117424426 cites W2097550788 @default.
- W2117424426 cites W2100899590 @default.
- W2117424426 cites W2115775584 @default.
- W2117424426 cites W2121051729 @default.
- W2117424426 cites W2141215853 @default.
- W2117424426 cites W2142172854 @default.
- W2117424426 cites W2150127333 @default.
- W2117424426 cites W2151144578 @default.
- W2117424426 cites W2158377227 @default.
- W2117424426 cites W2162417150 @default.
- W2117424426 cites W2166873702 @default.
- W2117424426 cites W2170311302 @default.
- W2117424426 doi "https://doi.org/10.1109/tsp.2008.2011824" @default.
- W2117424426 hasPublicationYear "2009" @default.
- W2117424426 type Work @default.
- W2117424426 sameAs 2117424426 @default.
- W2117424426 citedByCount "38" @default.
- W2117424426 countsByYear W21174244262012 @default.
- W2117424426 countsByYear W21174244262013 @default.
- W2117424426 countsByYear W21174244262014 @default.
- W2117424426 countsByYear W21174244262015 @default.
- W2117424426 countsByYear W21174244262016 @default.
- W2117424426 countsByYear W21174244262017 @default.
- W2117424426 countsByYear W21174244262020 @default.
- W2117424426 crossrefType "journal-article" @default.
- W2117424426 hasAuthorship W2117424426A5053514346 @default.
- W2117424426 hasAuthorship W2117424426A5057324156 @default.
- W2117424426 hasAuthorship W2117424426A5058104588 @default.
- W2117424426 hasConcept C11413529 @default.
- W2117424426 hasConcept C114614502 @default.
- W2117424426 hasConcept C126255220 @default.
- W2117424426 hasConcept C127162648 @default.
- W2117424426 hasConcept C130946814 @default.
- W2117424426 hasConcept C19275194 @default.
- W2117424426 hasConcept C207987634 @default.
- W2117424426 hasConcept C2776257435 @default.
- W2117424426 hasConcept C33923547 @default.
- W2117424426 hasConcept C40409654 @default.
- W2117424426 hasConcept C41008148 @default.
- W2117424426 hasConcept C45340560 @default.
- W2117424426 hasConcept C56296756 @default.
- W2117424426 hasConcept C76155785 @default.
- W2117424426 hasConceptScore W2117424426C11413529 @default.
- W2117424426 hasConceptScore W2117424426C114614502 @default.
- W2117424426 hasConceptScore W2117424426C126255220 @default.
- W2117424426 hasConceptScore W2117424426C127162648 @default.
- W2117424426 hasConceptScore W2117424426C130946814 @default.
- W2117424426 hasConceptScore W2117424426C19275194 @default.
- W2117424426 hasConceptScore W2117424426C207987634 @default.
- W2117424426 hasConceptScore W2117424426C2776257435 @default.
- W2117424426 hasConceptScore W2117424426C33923547 @default.
- W2117424426 hasConceptScore W2117424426C40409654 @default.
- W2117424426 hasConceptScore W2117424426C41008148 @default.
- W2117424426 hasConceptScore W2117424426C45340560 @default.
- W2117424426 hasConceptScore W2117424426C56296756 @default.
- W2117424426 hasConceptScore W2117424426C76155785 @default.
- W2117424426 hasIssue "5" @default.
- W2117424426 hasLocation W21174244261 @default.
- W2117424426 hasOpenAccess W2117424426 @default.
- W2117424426 hasPrimaryLocation W21174244261 @default.
- W2117424426 hasRelatedWork W1984489278 @default.
- W2117424426 hasRelatedWork W2102394268 @default.
- W2117424426 hasRelatedWork W2117468794 @default.
- W2117424426 hasRelatedWork W2141926916 @default.
- W2117424426 hasRelatedWork W2167898718 @default.
- W2117424426 hasRelatedWork W2188540607 @default.
- W2117424426 hasRelatedWork W2890717620 @default.
- W2117424426 hasRelatedWork W3012000319 @default.
- W2117424426 hasRelatedWork W3134820808 @default.
- W2117424426 hasRelatedWork W2339722592 @default.
- W2117424426 hasVolume "57" @default.
- W2117424426 isParatext "false" @default.
- W2117424426 isRetracted "false" @default.
- W2117424426 magId "2117424426" @default.
- W2117424426 workType "article" @default.