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Estimation of BS transceiver non-reciprocity in multi-user massive MIMO systems

Tutkimustuotosvertaisarvioitu

Standard

Estimation of BS transceiver non-reciprocity in multi-user massive MIMO systems. / Raeesi, Orod; Gokceoglu, Ahmet; Zou, Yaning; Cui, Qimei; Valkama, Mikko.

European Wireless Conference 2016, EW 2016. VDE, 2016. s. 407-414.

Tutkimustuotosvertaisarvioitu

Harvard

Raeesi, O, Gokceoglu, A, Zou, Y, Cui, Q & Valkama, M 2016, Estimation of BS transceiver non-reciprocity in multi-user massive MIMO systems. julkaisussa European Wireless Conference 2016, EW 2016. VDE, Sivut 407-414, EUROPEAN WIRELESS CONFERENCE, 1/01/00.

APA

Raeesi, O., Gokceoglu, A., Zou, Y., Cui, Q., & Valkama, M. (2016). Estimation of BS transceiver non-reciprocity in multi-user massive MIMO systems. teoksessa European Wireless Conference 2016, EW 2016 (Sivut 407-414). VDE.

Vancouver

Raeesi O, Gokceoglu A, Zou Y, Cui Q, Valkama M. Estimation of BS transceiver non-reciprocity in multi-user massive MIMO systems. julkaisussa European Wireless Conference 2016, EW 2016. VDE. 2016. s. 407-414

Author

Raeesi, Orod ; Gokceoglu, Ahmet ; Zou, Yaning ; Cui, Qimei ; Valkama, Mikko. / Estimation of BS transceiver non-reciprocity in multi-user massive MIMO systems. European Wireless Conference 2016, EW 2016. VDE, 2016. Sivut 407-414

Bibtex - Lataa

@inproceedings{98d232f08b0448e5911a4083f319a45f,
title = "Estimation of BS transceiver non-reciprocity in multi-user massive MIMO systems",
abstract = "This paper proposes efficient algorithms for estimating the base-station transceiver non-reciprocity characteristics in precoded TDD multi-user MIMO-OFDM networks, such that the estimation processing is carried out on the user equipment (UE) side. First, detailed signal models are derived to characterize the effects of transceiver non-reciprocity on both base-station and UE sides, in case of zero-forcing precoded multiuser MIMO-OFDM downlink transmission. The developed signal models show that transceiver non-reciprocity on the base-station side is the main cause of downlink performance degradation, resulting in general to inter-user interference. Then, based on closed-form analysis of the overall interference or distortion level on the receiver side, two efficient UE-based algorithms are proposed, depending on the availability of downlink pilot symbols, to estimate the level of base-station transceiver nonreciprocity without any specific calibration procedure. The performance of the proposed estimation methods are evaluated using extensive computer simulations. The obtained results show that even without any downlink pilot symbols, the estimation of the base-station non-reciprocity characteristics is still feasible, while further improved estimation accuracy can be obtained if downlink pilots are available in the system. In general, by being able to estimate the level of base-station transceiver nonreciprocity on the UE side, dedicated calibration procedures and the associated system overhead can be avoided, thus enabling the base-stations to carry out calibration only when truly needed.",
keywords = "Channel reciprocity, Massive MIMO, Multi-user MIMO, Non-reciprocity, Non-reciprocity level estimation, Time-division duplexing, Transceiver frequency response mismatch",
author = "Orod Raeesi and Ahmet Gokceoglu and Yaning Zou and Qimei Cui and Mikko Valkama",
note = "EXT={"}Zou, Yaning{"}",
year = "2016",
language = "English",
pages = "407--414",
booktitle = "European Wireless Conference 2016, EW 2016",
publisher = "VDE",

}

RIS (suitable for import to EndNote) - Lataa

TY - GEN

T1 - Estimation of BS transceiver non-reciprocity in multi-user massive MIMO systems

AU - Raeesi, Orod

AU - Gokceoglu, Ahmet

AU - Zou, Yaning

AU - Cui, Qimei

AU - Valkama, Mikko

N1 - EXT="Zou, Yaning"

PY - 2016

Y1 - 2016

N2 - This paper proposes efficient algorithms for estimating the base-station transceiver non-reciprocity characteristics in precoded TDD multi-user MIMO-OFDM networks, such that the estimation processing is carried out on the user equipment (UE) side. First, detailed signal models are derived to characterize the effects of transceiver non-reciprocity on both base-station and UE sides, in case of zero-forcing precoded multiuser MIMO-OFDM downlink transmission. The developed signal models show that transceiver non-reciprocity on the base-station side is the main cause of downlink performance degradation, resulting in general to inter-user interference. Then, based on closed-form analysis of the overall interference or distortion level on the receiver side, two efficient UE-based algorithms are proposed, depending on the availability of downlink pilot symbols, to estimate the level of base-station transceiver nonreciprocity without any specific calibration procedure. The performance of the proposed estimation methods are evaluated using extensive computer simulations. The obtained results show that even without any downlink pilot symbols, the estimation of the base-station non-reciprocity characteristics is still feasible, while further improved estimation accuracy can be obtained if downlink pilots are available in the system. In general, by being able to estimate the level of base-station transceiver nonreciprocity on the UE side, dedicated calibration procedures and the associated system overhead can be avoided, thus enabling the base-stations to carry out calibration only when truly needed.

AB - This paper proposes efficient algorithms for estimating the base-station transceiver non-reciprocity characteristics in precoded TDD multi-user MIMO-OFDM networks, such that the estimation processing is carried out on the user equipment (UE) side. First, detailed signal models are derived to characterize the effects of transceiver non-reciprocity on both base-station and UE sides, in case of zero-forcing precoded multiuser MIMO-OFDM downlink transmission. The developed signal models show that transceiver non-reciprocity on the base-station side is the main cause of downlink performance degradation, resulting in general to inter-user interference. Then, based on closed-form analysis of the overall interference or distortion level on the receiver side, two efficient UE-based algorithms are proposed, depending on the availability of downlink pilot symbols, to estimate the level of base-station transceiver nonreciprocity without any specific calibration procedure. The performance of the proposed estimation methods are evaluated using extensive computer simulations. The obtained results show that even without any downlink pilot symbols, the estimation of the base-station non-reciprocity characteristics is still feasible, while further improved estimation accuracy can be obtained if downlink pilots are available in the system. In general, by being able to estimate the level of base-station transceiver nonreciprocity on the UE side, dedicated calibration procedures and the associated system overhead can be avoided, thus enabling the base-stations to carry out calibration only when truly needed.

KW - Channel reciprocity

KW - Massive MIMO

KW - Multi-user MIMO

KW - Non-reciprocity

KW - Non-reciprocity level estimation

KW - Time-division duplexing

KW - Transceiver frequency response mismatch

M3 - Conference contribution

SP - 407

EP - 414

BT - European Wireless Conference 2016, EW 2016

PB - VDE

ER -