60 GHz Spatial Radio Transmission: Multiplexing or Beamforming?
(2013) In IEEE Transactions on Antennas and Propagation 61(11). p.5735-5743- Abstract
- This paper compares the capacity improvement capability of spatial multiplexing and beamforming techniques for 60 GHz spatial transmissions in a multi-carrier radio system such as orthogonal frequency division multiplexing. The term beamforming in this paper refers to the conventional gain focusing, for the strongest propagation path, by narrow antenna beams. Our channel capacity metric depends only on the multipath richness of the propagation channel and the antenna aperture size, but is otherwise independent of the realization of antenna elements on the aperture. Our analysis also reveals the spatial degrees-of-freedom (SDoF) of the radio channel, which is the maximum number of antenna elements on the aperture for efficient spatial... (More)
- This paper compares the capacity improvement capability of spatial multiplexing and beamforming techniques for 60 GHz spatial transmissions in a multi-carrier radio system such as orthogonal frequency division multiplexing. The term beamforming in this paper refers to the conventional gain focusing, for the strongest propagation path, by narrow antenna beams. Our channel capacity metric depends only on the multipath richness of the propagation channel and the antenna aperture size, but is otherwise independent of the realization of antenna elements on the aperture. Our analysis also reveals the spatial degrees-of-freedom (SDoF) of the radio channel, which is the maximum number of antenna elements on the aperture for efficient spatial multiplexing. We evaluate the capacity and SDoF of single-polarized 60 GHz radio channels measured in a conference room environment. Our results show that the radio channel offers multiple SDoFs both in line-of-sight (LOS) and non-LOS (NLOS) scenarios such that spatial multiplexing can improve the channel capacity, provided that the receive signal-to-noise ratio (SNR) is sufficiently high to utilize them. Under 10 dBm of the transmit power, the high receive SNR is guaranteed when the antenna aperture size is larger than 12 in LOS and 92 in NLOS scenarios, respectively. (Less)
Please use this url to cite or link to this publication:
https://lup.lub.lu.se/record/4075726
- author
- Haneda, Katsuyuki ; Gustafson, Carl LU and Wyne, Shurjeel
- organization
- publishing date
- 2013
- type
- Contribution to journal
- publication status
- published
- subject
- keywords
- MIMO systems, Millimeter-wave communication, beam steering, Antenna measurements, Antenna radiation patterns, Aperture antennas, Channel capacity, Multiplexing
- in
- IEEE Transactions on Antennas and Propagation
- volume
- 61
- issue
- 11
- pages
- 5735 - 5743
- publisher
- IEEE - Institute of Electrical and Electronics Engineers Inc.
- external identifiers
-
- wos:000326832300041
- scopus:84887873043
- ISSN
- 0018-926X
- DOI
- 10.1109/TAP.2013.2279091
- language
- English
- LU publication?
- yes
- id
- bf6fc0ae-2d22-4e5e-95c8-6563bf9c60ca (old id 4075726)
- date added to LUP
- 2016-04-01 13:45:39
- date last changed
- 2022-04-14 02:59:49
@article{bf6fc0ae-2d22-4e5e-95c8-6563bf9c60ca,
abstract = {{This paper compares the capacity improvement capability of spatial multiplexing and beamforming techniques for 60 GHz spatial transmissions in a multi-carrier radio system such as orthogonal frequency division multiplexing. The term beamforming in this paper refers to the conventional gain focusing, for the strongest propagation path, by narrow antenna beams. Our channel capacity metric depends only on the multipath richness of the propagation channel and the antenna aperture size, but is otherwise independent of the realization of antenna elements on the aperture. Our analysis also reveals the spatial degrees-of-freedom (SDoF) of the radio channel, which is the maximum number of antenna elements on the aperture for efficient spatial multiplexing. We evaluate the capacity and SDoF of single-polarized 60 GHz radio channels measured in a conference room environment. Our results show that the radio channel offers multiple SDoFs both in line-of-sight (LOS) and non-LOS (NLOS) scenarios such that spatial multiplexing can improve the channel capacity, provided that the receive signal-to-noise ratio (SNR) is sufficiently high to utilize them. Under 10 dBm of the transmit power, the high receive SNR is guaranteed when the antenna aperture size is larger than 12 in LOS and 92 in NLOS scenarios, respectively.}},
author = {{Haneda, Katsuyuki and Gustafson, Carl and Wyne, Shurjeel}},
issn = {{0018-926X}},
keywords = {{MIMO systems; Millimeter-wave communication; beam steering; Antenna measurements; Antenna radiation patterns; Aperture antennas; Channel capacity; Multiplexing}},
language = {{eng}},
number = {{11}},
pages = {{5735--5743}},
publisher = {{IEEE - Institute of Electrical and Electronics Engineers Inc.}},
series = {{IEEE Transactions on Antennas and Propagation}},
title = {{60 GHz Spatial Radio Transmission: Multiplexing or Beamforming?}},
url = {{http://dx.doi.org/10.1109/TAP.2013.2279091}},
doi = {{10.1109/TAP.2013.2279091}},
volume = {{61}},
year = {{2013}},
}