 |
ECOLE SUPÉRIEURE D'ÉLECTRICITÉ Une grande école d'ingénieurs au cœur des sciences de l'information,de l'énergie et des systèmes |
 |
Conference papers
Model-based channel estimation and codeword selection for correlated MIMO channels
Abstract : For a closed loop MIMO system to provide outstanding performance, the receiver needs to feedback accurate channel state information, which in turn requires a large codebook size. In this paper, we present a new codeword selection scheme based on a model-based channel estimator. Our scheme performs simultaneous channel estimation and codeword selection by exploiting the structures of the associated MIMO spatial channel and the codebook used. For a DFT-based codebook with arbitrary size, only a quantization operation is needed to select a proper codeword in a correlated fading environment. Using industry-approved standard channel models in simulating the system performance, we show that our low-complexity codeword selection scheme does outperform the scheme based on the conventional least-square estimator.
https://hal-supelec.archives-ouvertes.fr/hal-00746824
Contributor : Catherine Magnet Connect in order to contact the contributor
Submitted on : Monday, October 29, 2012 - 5:31:09 PM
Last modification on : Monday, December 14, 2020 - 12:38:07 PM
Contributor : Catherine Magnet Connect in order to contact the contributor
Submitted on : Monday, October 29, 2012 - 5:31:09 PM
Last modification on : Monday, December 14, 2020 - 12:38:07 PM