Matches in SemOpenAlex for { <https://semopenalex.org/work/W2038001702> ?p ?o ?g. }
Showing items 1 to 90 of
90
with 100 items per page.
- W2038001702 abstract "Coordinated multi-point transmission (CoMP) is a promising strategy to provide high spectral efficiency for cellular systems. To facilitate multicell precoding, downlink channel is estimated via uplink training in time division duplexing systems by exploiting channel reciprocity. Virtual subcarriers in practical orthogonal frequency division multiplexing (OFDM) systems degrade the channel estimation performance severely when discrete Fourier transform (DFT) based channel estimator is applied. Minimum mean square error (MMSE) channel estimator is able to provide superior performance, but at the cost of high complexity and more a priori information. In this paper, we propose a low complexity channel estimator for CoMP multi-antenna OFDM systems. We employ series expansion to approximate the matrix inversion in MMSE estimator as matrix multiplications. By exploiting the feature of frequency domain training sequences in prevalent systems, we show that the proposed estimator can be implemented by DFT. To reduce the required channel statistical information, we use the average channel gains instead of channel correlation matrix, which leads to minor performance loss in CoMP systems. Simulation results show that the proposed channel estimator performs closely to the MMSE estimator." @default.
- W2038001702 created "2016-06-24" @default.
- W2038001702 creator A5013642287 @default.
- W2038001702 creator A5017834988 @default.
- W2038001702 creator A5030921116 @default.
- W2038001702 creator A5040178565 @default.
- W2038001702 creator A5082367329 @default.
- W2038001702 creator A5082950698 @default.
- W2038001702 date "2013-04-01" @default.
- W2038001702 modified "2023-09-25" @default.
- W2038001702 title "Low complexity channel estimation in TDD coordinated multi-point transmission systems" @default.
- W2038001702 cites W2096792326 @default.
- W2038001702 cites W2108040390 @default.
- W2038001702 cites W2121315337 @default.
- W2038001702 cites W2122793252 @default.
- W2038001702 cites W2132305759 @default.
- W2038001702 cites W2134400130 @default.
- W2038001702 cites W2137403750 @default.
- W2038001702 cites W2149258241 @default.
- W2038001702 cites W2154078807 @default.
- W2038001702 cites W2154456549 @default.
- W2038001702 cites W2155174176 @default.
- W2038001702 doi "https://doi.org/10.1109/wcnc.2013.6555062" @default.
- W2038001702 hasPublicationYear "2013" @default.
- W2038001702 type Work @default.
- W2038001702 sameAs 2038001702 @default.
- W2038001702 citedByCount "1" @default.
- W2038001702 countsByYear W20380017022014 @default.
- W2038001702 crossrefType "proceedings-article" @default.
- W2038001702 hasAuthorship W2038001702A5013642287 @default.
- W2038001702 hasAuthorship W2038001702A5017834988 @default.
- W2038001702 hasAuthorship W2038001702A5030921116 @default.
- W2038001702 hasAuthorship W2038001702A5040178565 @default.
- W2038001702 hasAuthorship W2038001702A5082367329 @default.
- W2038001702 hasAuthorship W2038001702A5082950698 @default.
- W2038001702 hasConcept C102519508 @default.
- W2038001702 hasConcept C105795698 @default.
- W2038001702 hasConcept C11413529 @default.
- W2038001702 hasConcept C127162648 @default.
- W2038001702 hasConcept C134306372 @default.
- W2038001702 hasConcept C137246740 @default.
- W2038001702 hasConcept C138660444 @default.
- W2038001702 hasConcept C160562895 @default.
- W2038001702 hasConcept C185429906 @default.
- W2038001702 hasConcept C203024314 @default.
- W2038001702 hasConcept C207987634 @default.
- W2038001702 hasConcept C33923547 @default.
- W2038001702 hasConcept C40409654 @default.
- W2038001702 hasConcept C41008148 @default.
- W2038001702 hasConcept C57733114 @default.
- W2038001702 hasConcept C761482 @default.
- W2038001702 hasConcept C76155785 @default.
- W2038001702 hasConcept C76563020 @default.
- W2038001702 hasConcept C90652560 @default.
- W2038001702 hasConceptScore W2038001702C102519508 @default.
- W2038001702 hasConceptScore W2038001702C105795698 @default.
- W2038001702 hasConceptScore W2038001702C11413529 @default.
- W2038001702 hasConceptScore W2038001702C127162648 @default.
- W2038001702 hasConceptScore W2038001702C134306372 @default.
- W2038001702 hasConceptScore W2038001702C137246740 @default.
- W2038001702 hasConceptScore W2038001702C138660444 @default.
- W2038001702 hasConceptScore W2038001702C160562895 @default.
- W2038001702 hasConceptScore W2038001702C185429906 @default.
- W2038001702 hasConceptScore W2038001702C203024314 @default.
- W2038001702 hasConceptScore W2038001702C207987634 @default.
- W2038001702 hasConceptScore W2038001702C33923547 @default.
- W2038001702 hasConceptScore W2038001702C40409654 @default.
- W2038001702 hasConceptScore W2038001702C41008148 @default.
- W2038001702 hasConceptScore W2038001702C57733114 @default.
- W2038001702 hasConceptScore W2038001702C761482 @default.
- W2038001702 hasConceptScore W2038001702C76155785 @default.
- W2038001702 hasConceptScore W2038001702C76563020 @default.
- W2038001702 hasConceptScore W2038001702C90652560 @default.
- W2038001702 hasLocation W20380017021 @default.
- W2038001702 hasOpenAccess W2038001702 @default.
- W2038001702 hasPrimaryLocation W20380017021 @default.
- W2038001702 hasRelatedWork W1751368694 @default.
- W2038001702 hasRelatedWork W2137856422 @default.
- W2038001702 hasRelatedWork W2382267219 @default.
- W2038001702 hasRelatedWork W2385492535 @default.
- W2038001702 hasRelatedWork W2737812849 @default.
- W2038001702 hasRelatedWork W2754062015 @default.
- W2038001702 hasRelatedWork W2911379056 @default.
- W2038001702 hasRelatedWork W2949055679 @default.
- W2038001702 hasRelatedWork W3045644480 @default.
- W2038001702 hasRelatedWork W3115941113 @default.
- W2038001702 isParatext "false" @default.
- W2038001702 isRetracted "false" @default.
- W2038001702 magId "2038001702" @default.
- W2038001702 workType "article" @default.