Estimating Sparse MIMO Channels Having Common Support

We propose an algorithm (SCS-FRI) to estimate multipath channels with Sparse Common Support (SCS) based on Finite Rate of Inno- vation (FRI) sampling. In this setup, theoretical lower-bounds are derived, and simulation in a Rayleigh fading environment shows that SCS-FRI gets very close to these bounds. We show how to apply SCS-FRI to OFDM and CDMA downlinks. Recovery of a sparse common support is, among other, especially relevant for channel es- timation in a multiple output system or beam-forming from multiple input. The present algorithm is based on a multi-output extension of the Cadzow denoising/annihilating filter method.


Published in:
2011 Ieee International Conference On Acoustics, Speech, And Signal Processing, 2920-2923
Presented at:
36th International Conference on Acoustics, Speech and Signal Processing, Prague, Czech Republic, May 22-27, 2011
Year:
2011
Publisher:
Ieee Service Center, 445 Hoes Lane, Po Box 1331, Piscataway, Nj 08855-1331 Usa
ISBN:
978-1-4577-0539-7
Keywords:
Laboratories:




 Record created 2011-01-18, last modified 2018-03-17

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