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Sökning: WFRF:(Karimdady Sharifabad Farnaz)

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1.
  • Foroughi, Farzad, et al. (författare)
  • Low complexity channel estimation for LTE in fast fading environments for implementation on multi-standard platforms
  • 2010
  • Ingår i: IEEE 72ND VEHICULAR TECHNOLOGY CONFERENCE FALL 2010. - 1090-3038.
  • Konferensbidrag (refereegranskat)abstract
    • In this paper a number of low-complexity channel estimator structures tailored to the needs of LTE terminals have been investigated. The focus has been on the algorithms exhibiting reduced complexity while providing an acceptable level of performance. To design these estimators other factors such as interoperability with another OFDM-based standard, DVB-H, in a multi-standard environment have been taken into account. The key underlying parameter has been exploiting the pilot pattern in LTE providing the possibility of minimal filtering in time domain while exhibiting an acceptable level of performance in fast fading environments.
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2.
  • Karimdady Sharifabad, Farnaz, et al. (författare)
  • Low complexity channel estimation for low-mobility LTE using 4×4 MIMO
  • 2011
  • Ingår i: Proc. of the 6th IEEE Conference on Industrial Electronics and Applications (ICIEA). - 9781424487547 ; , s. 1893-1897
  • Konferensbidrag (refereegranskat)abstract
    • Multiple-input multiple-output (MIMO) is a mandatory feature of the Third Generation Partnership Project (3GPP) Long Term Evolution. This work investigates the performance of a low complexity channel estimator for LTE terminals with an emphasis on the 4 × 4 multiple antenna scheme. The presented work extends a promising low-complexity 2 × 2 MIMO channel estimator to the 4 × 4 MIMO case and evaluates its performance at different terminal speeds. The evaluation is done in terms of simulated error performance for coded LTE. We show that the presented channel estimator can be used without a significant performance loss up to about 15-20 km/h, where the approximations done to achieve low complexity start to have a significant impact on the performance.
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Edfors, Ove (2)
Foroughi, Farzad (2)
Karimdady Sharifabad ... (2)
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