Publication result detail

On Mutual Information of Measured 60 GHz Wideband Indoor MIMO Channels: Time Domain Singular Values

BLUMENSTEIN, J.; MARŠÁLEK, R.; GÖTTHANS, T.; NISSEL, R.; RUPP, M.

Original Title

On Mutual Information of Measured 60 GHz Wideband Indoor MIMO Channels: Time Domain Singular Values

English Title

On Mutual Information of Measured 60 GHz Wideband Indoor MIMO Channels: Time Domain Singular Values

Type

Paper in proceedings (conference paper)

Original Abstract

This paper presents a report on mutual information based on measured indoor millimeter-wave (mmWave) channels with multiple antennas at input and output (MIMO). We show that for fixed indoor communication systems, an optimal antenna element spacing can be found such that the measured mutual information almost reaches the capacity of a perfectly orthogonal (theoretical) MIMO channel (with the same number of receiver (RX) and transmitter (TX) antennas). Secondly, we present, that even though the measured channel transfer functions (CTFs) exhibit large fluctuations (i.e., temporal dispersion), the mutual information is mainly determined by the mean singular value of the line-of-sight (LOS) components. Due to their strong variations over frequency mmWave channels are tedious when describing them with classical methods in the frequency domain. An approximation by numerous flat subbands leads to an error in mutual information (MI) by 2bit/s/Hz (for 80% probability). In comparison, our proposed method in the time domain, however, offers a notably smaller error (1bit/s/Hz for 80% probability).

English abstract

This paper presents a report on mutual information based on measured indoor millimeter-wave (mmWave) channels with multiple antennas at input and output (MIMO). We show that for fixed indoor communication systems, an optimal antenna element spacing can be found such that the measured mutual information almost reaches the capacity of a perfectly orthogonal (theoretical) MIMO channel (with the same number of receiver (RX) and transmitter (TX) antennas). Secondly, we present, that even though the measured channel transfer functions (CTFs) exhibit large fluctuations (i.e., temporal dispersion), the mutual information is mainly determined by the mean singular value of the line-of-sight (LOS) components. Due to their strong variations over frequency mmWave channels are tedious when describing them with classical methods in the frequency domain. An approximation by numerous flat subbands leads to an error in mutual information (MI) by 2bit/s/Hz (for 80% probability). In comparison, our proposed method in the time domain, however, offers a notably smaller error (1bit/s/Hz for 80% probability).

Keywords

MIMO, Spatial Modulation, channel sounding, mutual information

Key words in English

MIMO, Spatial Modulation, channel sounding, mutual information

Authors

BLUMENSTEIN, J.; MARŠÁLEK, R.; GÖTTHANS, T.; NISSEL, R.; RUPP, M.

RIV year

2018

Released

08.10.2017

Publisher

IEEE

ISBN

9781538635292

Book

IEEE International Symposium on Personal, Indoor and Mobile Radio Communications (IEEE PIMRC 2017)

Pages from

1

Pages to

5

Pages count

5

URL

https://ieeexplore.ieee.org/document/8292754

Full text in the Digital Library

http://hdl.handle.net/11012/245252

BibTex

@inproceedings{BUT140428,
  author="Jiří {Blumenstein} and Roman {Maršálek} and Tomáš {Götthans} and Ronald {Nissel} and Markus {Rupp}",
  title="On Mutual Information of Measured 60 GHz Wideband Indoor MIMO Channels: Time Domain Singular Values",
  booktitle="IEEE International Symposium on Personal, Indoor and Mobile Radio Communications (IEEE PIMRC 2017)",
  year="2017",
  pages="1--5",
  publisher="IEEE",
  doi="10.1109/PIMRC.2017.8292754",
  isbn="9781538635292",
  url="https://ieeexplore.ieee.org/document/8292754"
}

Documents

1570393004
PIMRC.2017.8292754-accepted