Abstract
Pilot contamination limits the potential benefits of massive multiple input multiple output (MIMO) systems. To mitigate pilot contamination, in this paper, an efficient channel estimation approach is proposed for massive MIMO systems, using sparse Bayesian learning (SBL) namely coupled hierarchical Gaussian framework where the sparsity of each coefficient is controlled by its own hyperparameter and the hyperparameters of its immediate neighbours. The simulation results show that the proposed method can reconstruct original channel coefficients more effectively compared to the conventional channel estimators in terms of channel estimation accuracy in the presence of pilot contamination.
Original language | English |
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Title of host publication | 2017 European Conference on Networks and Communications (EuCNC) |
Subtitle of host publication | EuCNC 2017 Travel Grant Support |
Place of Publication | Oulu, Finland |
Publisher | Institute of Electrical and Electronics Engineers Inc. |
ISBN (Electronic) | 9781538638736 |
DOIs | |
Publication status | Published - 15 Jun 2017 |
Event | 2017 European Conference on Networks and Communications, EuCNC 2017 - Oulu, Finland Duration: 12 Jun 2017 → 15 Jun 2017 |
Conference
Conference | 2017 European Conference on Networks and Communications, EuCNC 2017 |
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Country/Territory | Finland |
City | Oulu |
Period | 12/06/2017 → 15/06/2017 |
Keywords
- channel estimation
- massive MIMO
- Sparse Bayesian learning