Compressive spatial channel sounding
Ibrahim M, Al-Aqqad W, Römer F, Käske M, Semper S, Thomä RS, Del Galdo G (2018)
Publication Type: Conference contribution
Publication year: 2018
Publisher: Institution of Engineering and Technology
Book Volume: 2018
Conference Proceedings Title: IET Conference Publications
Event location: London, GBR
Abstract
In this paper we investigate the application of Compressed Sensing (CS) to MIMO channel sounding in the spatial domain. A compressive spatial channel sounder is proposed and evaluated based on real scenarios showing advantages in terms of time, hardware complexity and resolution. In particular, in the case where we use time division duplex for measuring the MIMO channel (in the form of antenna switching at the transmitter and/or the receiver), the proposed approach reduces the total number of switching periods, which implies a reduced channel acquisition time and thus an improved Doppler bandwidth. Alternatively, if we use multiple receive RF chains for the measurement, the compression allows to reduce the number of RF chains, which is a relevant advantage in terms of the overall receiver complexity, the amount of data to be processed in the digital domain (e.g., FPGA), power consumption, as well as RF hardware calibration. On the other hand, for the same measurement time and/or hardware complexity, one can increase the number of array elements to cover a larger aperture and so achieving better performance in terms of resolution.
Involved external institutions
Germany (DE)How to cite
APA:
Ibrahim, M., Al-Aqqad, W., Römer, F., Käske, M., Semper, S., Thomä, R.S., & Del Galdo, G. (2018). Compressive spatial channel sounding. In IET Conference Publications. London, GBR: Institution of Engineering and Technology.
MLA:
Ibrahim, M., et al. "Compressive spatial channel sounding." Proceedings of the 12th European Conference on Antennas and Propagation, EuCAP 2018, London, GBR Institution of Engineering and Technology, 2018.
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