The DOI matches its Crossref record; 2 of the 2 references it cites were found in a registry or an index.
Precoding and Power Optimization in Cell-Free Massive MIMO Systems
Abstract
Cell-free Massive multiple-input multiple-output (MIMO) comprises a large number of distributed low-cost low-power single antenna access points (APs) connected to a network controller. The number of AP antennas is significantly larger than the number of users. The system is not partitioned into cells and each user is served by all APs simultaneously. The simplest linear precoding schemes are conjugate beamforming and zero-forcing. Max-min power control provides equal throughput to all users and is considered in this paper. Surprisingly, under max-min power control, most APs are found to transmit at less than full power. The zero-forcing precoder significantly outperforms conjugate beamforming. For zero-forcing, a near-optimal power control algorithm is developed that is considerably simpler than exact max-min power control. An alternative to cell-free systems is small-cell operation in which each user is served by only one AP for which power optimization algorithms are also developed. Cell-free Massive MIMO is shown to provide five- to ten-fold improvement in 95%-likely per-user throughput over small-cell operation.
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Citations
Cites
Boyd, S., & Vandenberghe, L. (2004) · doi:10.1017/cbo9780511804441 · Cited by 56,601
Fundamentals of Wireless Communication
Tse, D., & Viswanath, P. (2005) · doi:10.1017/cbo9780511807213 · Cited by 13,162
Cited by
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Zhang, J., Bjornson, E., Matthaiou, M., Ng, D. W. K., Yang, H., & Love, D. J. (2020) · IEEE Journal on Selected Areas in Communications · doi:10.1109/jsac.2020.3000826 · Cited by 877
Self-citationMassive Access for 5G and Beyond
Chen, X., Ng, D. W. K., Yu, W., Larsson, E. G., Al-Dhahir, N., & Schober, R. (2021) · IEEE Journal on Selected Areas in Communications · doi:10.1109/jsac.2020.3019724 · Cited by 681
Ubiquitous cell-free massive MIMO communications
Interdonato, G., Björnson, E., Quoc Ngo, H., Frenger, P., & Larsson, E. G. (2019) · EURASIP Journal on Wireless Communications and Networking · doi:10.1186/s13638-019-1507-0 · Cited by 646
Foundations of MIMO Communication
Heath Jr, R. W., & Lozano, A. (2018) · Cambridge University Press eBooks · doi:10.1017/9781139049276 · Cited by 426
Buzzi, S., D'Andrea, C., Zappone, A., & D'Elia, C. (2020) · IEEE Transactions on Wireless Communications · doi:10.1109/twc.2019.2952117 · Cited by 348
Metadata
- Authors
- Nayebi, E., Ashikhmin, A., Marzetta, T. L., Yang, H., & Rao, B. D.
- Venue
- IEEE Transactions on Wireless Communications
- Published
- 2017-07
- Volume
- 16
- Issue
- 7
- Pages
- 4445-4459
- ISSN
- 1536-1276 (ISSN-L)
- OpenAlex
- W2610350904
- Cited by
- 737
- References
- 2
- FWCI
- 23.49
- Type
- journal article
- Language
- en
- Open access
- closed
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- Nayebi, E., Ashikhmin, A., Marzetta, T. L., Yang, H., & Rao, B. D. (2017). Precoding and Power Optimization in Cell-Free Massive MIMO Systems. IEEE Transactions on Wireless Communications. https://doi.org/10.1109/twc.2017.2698449
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