Reciprocity Calibration of Dual-Antenna Repeaters
Abstract: We present a reciprocity calibration method for dual-antenna repeaters in wireless networks. The method uses bi-directional measurements between two network nodes, A and B, where for each bi-directional measurement, the repeaters are configured in different states. The nodes A and B could be two access points in a distributed MIMO system, or they could be a base station and a mobile user terminal, for example. From the calibration measurements, the differences between the repeaters' forward and reverse gains are estimated. The repeaters are then (re-)configured to compensate for these differences such that the repeaters appear, transparently to the network, as reciprocal components of the propagation environment, enabling reciprocity-based beamforming in the network.
- M. N. Patwary, P. B. Rapajic, and I. Oppermann, “Capacity and coverage increase with repeaters in UMTS urban cellular mobile communication environment,” IEEE Transactions on Communications, vol. 53, no. 10, pp. 1620–1624, 2005.
- S. K. Sharma, M. Patwary, S. Chatzinotas, B. Ottersten, and M. Abdel-Maguid, “Repeater for 5G wireless: A complementary contender for spectrum sensing intelligence,” in IEEE ICC, 2015, pp. 1416–1421.
- M. Garcia-Lozano, L. Alonso, F. Casadevall, S. Ruiz, and L. M. Correia, “Enhanced analysis of WCDMA networks with repeaters deployment,” IEEE Transactions on Wireless Communications, vol. 6, no. 9, pp. 3429–3439, 2007.
- L.-S. Tsai and D.-S. Shiu, “Capacity scaling and coverage for repeater-aided MIMO systems in line-of-sight environments,” IEEE Transactions on Wireless Communications, vol. 9, no. 5, pp. 1617–1627, 2010.
- R. A. Ayoubi, M. Mizmizi, D. Tagliaferri, D. De Donno, and U. Spagnolini, “Network-controlled repeaters vs. reconfigurable intelligent surfaces for 6G mmW coverage extension: A simulative comparison,” in IEEE MedComNet, 2023.
- G. Leone, E. Moro, I. Filippini, A. Capone, and D. De Donno, “Towards reliable mmWave 6G RAN: Reconfigurable surfaces, smart repeaters, or both?” in IEEE WiOpt, 2022.
- Y. Ma, D. Zhu, B. Li, and P. Liang, “Channel estimation error and beamforming performance in repeater-enhanced massive MIMO systems,” in IEEE PIMRC, 2015, pp. 672–677.
- T. Laas, J. A. Nossek, S. Bazzi, and W. Xu, “On reciprocity in physically consistent TDD systems with coupled antennas,” IEEE Transactions on Wireless Communications, vol. 19, no. 10, pp. 6440–6453, 2020.
- J. Vieira, F. Rusek, O. Edfors, S. Malkowsky, L. Liu, and F. Tufvesson, “Reciprocity calibration for massive MIMO: Proposal, modeling, and validation,” IEEE Transactions on Wireless Communications, vol. 16, no. 5, pp. 3042–3056, 2017.
- X. Jiang, A. Decurninge, K. Gopala, F. Kaltenberger, M. Guillaud, D. Slock, and L. Deneire, “A framework for over-the-air reciprocity calibration for TDD massive MIMO systems,” IEEE Transactions on Wireless Communications, vol. 17, no. 9, pp. 5975–5990, 2018.
- C. Shepard, H. Yu, N. Anand, E. Li, T. Marzetta, R. Yang, and L. Zhong, “Argos: Practical many-antenna base stations,” in International Conference on Mobile Computing and Networking, 2012.
- F. Kaltenberger, J. Haiyong, M. Guillaud, and R. Knopp, “Relative channel reciprocity calibration in MIMO/TDD systems,” in Proc. Future Network and Mobile Summit, Florence, Italy, June 2010.
- B. M. Lee, “Calibration for channel reciprocity in industrial massive MIMO antenna systems,” IEEE Transactions on Industrial Informatics, vol. 14, no. 1, pp. 221–230, 2017.
- J. Vieira and E. G. Larsson, “Reciprocity calibration of distributed massive MIMO access points for coherent operation,” in IEEE PIMRC, 2021.
- E. G. Larsson and J. Vieira, “Phase calibration of distributed antenna arrays,” IEEE Communications Letters, 2023.
- R. Nie, L. Chen, N. Zhao, Y. Chen, F. R. Yu, and G. Wei, “Relaying systems with reciprocity mismatch: Impact analysis and calibration,” IEEE Transactions on Communications, vol. 68, no. 7, pp. 4035–4049, 2020.
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