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Blind Pilot Decontamination
Open accessAbstract
A subspace projection to improve channel estimation in massive multi-antenna systems is proposed and analyzed. Together with power-controlled hand-off, it can mitigate the pilot contamination problem without the need for coordination among cells. The proposed method is blind in the sense that it does not require pilot data to find the appropriate subspace. It is based on the theory of large random matrices that predicts that the eigenvalue spectra of large sample covariance matrices can asymptotically decompose into disjoint bulks as the matrix size grows large. Random matrix and free probability theory are utilized to predict under which system parameters such a bulk decomposition takes place. Simulation results are provided to confirm that the proposed method outperforms conventional linear channel estimation if bulk separation occurs.
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Citations
Cited by
Massive MIMO Has Unlimited Capacity
Bjornson, E., Hoydis, J., & Sanguinetti, L. (2018) · IEEE Transactions on Wireless Communications · doi:10.1109/twc.2017.2768423 · Cited by 474
Foundations of MIMO Communication
Heath Jr, R. W., & Lozano, A. (2018) · Cambridge University Press eBooks · doi:10.1017/9781139049276 · Cited by 426
Beam Alignment in mmWave V2X Communications: A Survey
Tan, J., Luan, T. H., Guan, W., Wang, Y., Peng, H., Zhang, Y., Zhao, D., & Lu, N. (2024) · IEEE Communications Surveys & Tutorials · doi:10.1109/comst.2024.3383093 · Cited by 75
Metadata
- Authors
- Muller, R. R., Cottatellucci, L., & Vehkapera, M.
- Venue
- IEEE Journal of Selected Topics in Signal Processing
- Published
- 2014-10
- Volume
- 8
- Issue
- 5
- Pages
- 773-786
- ISSN
- 1932-4553 (ISSN-L)
- 1941-0484
- OpenAlex
- W2111113050
- Cited by
- 511
- References
- 0
- FWCI
- 44.22
- Type
- journal article
- Language
- en
- Open access
- green
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- CoChat. (2026). Citation check: Blind Pilot Decontamination. https://app.cochat.ai/papers/10.1109/jstsp.2014.2310053
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- Muller, R. R., Cottatellucci, L., & Vehkapera, M. (2014). Blind Pilot Decontamination. IEEE Journal of Selected Topics in Signal Processing. https://doi.org/10.1109/jstsp.2014.2310053
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