The Vienna LTE-Advanced Simulators by Markus Rupp Stefan Schwarz & Martin Taranetz

Author:Markus Rupp, Stefan Schwarz & Martin Taranetz
Language: eng
Format: epub
Publisher: Springer Singapore, Singapore

(7.72)

where the interpolated subspace is obtained from Eq. (7.45) in case of first-order interpolation, while is employed with zeroth-order interpolation and SQBC clustering ( is defined in Eq. (5.​14).

The effect of dimensionality adaptation, as defined in Eq. (7.53), on the MSE performance of SQBC clustering is investigated. A system bandwidth of 5 MHz is assumed and the power delay profile of the channel is determined by the SCME urban micro channel model [28], having a coherence bandwidth of kHz.

Fig. 7.3Chordal distance MSE investigation of the proposed CSI feedback methods for frequency-selective channels. a Comparison of feedback clustering and interpolation. b Contribution of CSI prediction, clustering and quantization

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