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Abstract
In this paper we consider time-division-duplex (TDD) reciprocity calibration of a massive MIMO system. The calibration of a massive MIMO system can be done entirely at the base station (BS) side by sounding the BS antennas one-by-one while receiving with the other BS antennas. With an M antenna BS, this generates M(M - 1) signals that can be used for calibration purposes. In this paper we study several least-squares (LS) based estimators, differing in the number of received signals that are being used. We compare the performance of the estimators, and we conclude that is possible to accurately calibrate an entire BS antenna array using the mutual coupling
between antennas as the main propagation mechanism.
between antennas as the main propagation mechanism.
| Original language | English |
|---|---|
| Publication status | Published - 2014 |
| Event | IEEE Globecom 2014 : - Wireless Communications Symposium - Austin, Texas, United States Duration: 2014 Dec 8 → 2014 Dec 8 |
Conference
| Conference | IEEE Globecom 2014 |
|---|---|
| Country/Territory | United States |
| City | Austin, Texas |
| Period | 2014/12/08 → 2014/12/08 |
Subject classification (UKÄ)
- Electrical Engineering, Electronic Engineering, Information Engineering
Free keywords
- Massive MIMO
- TDD reciprocity
- antenna calibration
- estimation
Fingerprint
Dive into the research topics of 'Reciprocity calibration methods for Massive MIMO based on antenna coupling'. Together they form a unique fingerprint.Research output
- 1 Doctoral Thesis (compilation)
-
Algorithms and Proofs of Concept for Massive MIMO Systems
Vieira, J., 2017, Lund: The Department of Electrical and Information Technology. 254 p.Research output: Thesis › Doctoral Thesis (compilation)
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