Distributed MIMO Measurements for Integrated Communication and Sensing in an Industrial Environment
Author:
Nelson Christian1ORCID, Li Xuhong1ORCID, Fedorov Aleksei1ORCID, Deutschmann Benjamin2ORCID, Tufvesson Fredrik1ORCID
Affiliation:
1. Department of Electrical and Information Technology, Lund University, 22100 Lund, Sweden 2. Institute of Communication Networks and Satellite Communications, Graz University of Technology, 8010 Graz, Austria
Abstract
Many concepts for future generations of wireless communication systems use coherent processing of signals from many distributed antennas. The aim is to improve communication reliability, capacity, and energy efficiency and provide possibilities for new applications through integrated communication and sensing. The large bandwidths available in the higher bands have inspired much work regarding sensing in the millimeter-wave (mmWave) and sub-THz bands; however, the sub-6 GHz cellular bands will still be the main provider of wide cellular coverage due to the more favorable propagation conditions. In this paper, we present a measurement system and results of sub-6 GHz distributed multiple-input-multiple-output (MIMO) measurements performed in an industrial environment. From the measurements, we evaluated the diversity for both large-scale and small-scale fading and characterized the link reliability. We also analyzed the possibility of multistatic sensing and positioning of users in the environment, with the initial results showing a mean-square error below 20 cm on the estimated position. Further, the results clearly showed that new channel models are needed that are spatially consistent and deal with the nonstationary channel properties among the antennas.
Funder
Connected Systems at Lund University strategic research area ELLIIT European Union’s Horizon 2020 research and innovation program
Reference46 articles.
1. TSGR (2018). TR 138 913-V15.0.0-5G, 3GPP. Study on Scenarios and Requirements for Next Generation Access Technologies; Technical Report. 2. 6G Vision, Value, Use Cases and Technologies From European 6G Flagship Project Hexa-X;Uusitalo;IEEE Access,2021 3. der Perre, L.V., Larsson, E.G., Tufvesson, F., Strycker, L.D., Bjornson, E., and Edfors, O. (2019, January 3–6). RadioWeaves for efficient connectivity: Analysis and impact of constraints in actual deployments. Proceedings of the 2019 53rd Asilomar Conference on Signals, Systems, and Computers, Pacific Grove, CA, USA. 4. Behravan, A., Baldemair, R., Parkvall, S., Dahlman, E., Yajnanarayana, V., Bjorkegren, H., and Shrestha, D. (2022, January 9–10). Introducing sensing into future wireless communication systems. Proceedings of the 2022 2nd IEEE International Symposium on Joint Communications & Sensing (JC&S), Seefeld, Austria. 5. Willhammar, S., Flordelis, J., Van der Perre, L., and Tufvesson, F. (2018, January 25–28). Channel Hardening in Massive MIMO-A Measurement Based Analysis. Proceedings of the 2018 IEEE 19th International Workshop on Signal Processing Advances in Wireless Communications (SPAWC), Kalamata, Greece.
|
|