Title:
OAM MULTIPLEXING COMMUNICATION SYSTEM AND OAM MULTIPLEXING COMMUNICATION METHOD
Document Type and Number:
WIPO Patent Application WO/2019/059408
Kind Code:
A1
Abstract:
This OAM multiplexing communication system uses an OAM mode as the basis in the dimension of the rotation direction to multiplex and transmit multiple signal series. A transmission station is provided with: a transmission antenna which uses an M-UCA comprising multiple concentrically arranged UCAs, each of which comprises a plurality of antenna elements arranged at equal intervals around a circle; and a means which performs a basis conversion in the rotation direction and radial direction dimensions in a polar coordinate system of which the origin is the center of the multiple UCAs, and multiplexes and transmits multiple signal series for each composite mode formed by a combination of different bases of each dimension. A receiving station is provided with: a receiving antenna which uses a M-UCA comprising multiple UCAs, with the UCAs arranged in concentric circles; and a means which receives the signals transmitted multiplexed from the transmission station, performs basis conversion in the rotation direction and radial direction dimensions on the received signals and separates the multiple transmitted multiplexed signal series.
Inventors:
SASAKI HIROFUMI (JP)
LEE DOOHWAN (JP)
FUKUMOTO HIROYUKI (JP)
SHIBA HIROYUKI (JP)
LEE DOOHWAN (JP)
FUKUMOTO HIROYUKI (JP)
SHIBA HIROYUKI (JP)
Application Number:
PCT/JP2018/035537
Publication Date:
March 28, 2019
Filing Date:
September 25, 2018
Export Citation:
Assignee:
NIPPON TELEGRAPH & TELEPHONE (JP)
International Classes:
H04J99/00; H04B7/0456
Domestic Patent References:
| WO2009096316A1 | 2009-08-06 | |||
| WO2009017230A1 | 2009-02-05 |
Other References:
YUQING YUAN ET AL.: "Capacity analysis of UCA-based OAM multiplexing communication system", 2015 INTERNATIONAL CONFERENCE ON WIRELESS COMMUNICATIONS & SIGNAL PROCESSING (WCSP, 17 October 2015 (2015-10-17), XP032820668, DOI: 10.1109/WCSP.2015.7341308
OVE EDFORS ET AL.: "Is Orbital Angular Momentum (OAM) Based Radio Communication an Unexploited Area?", IEEE TRANSACTIONS ON ANTENNAS AND PROPAGATION, vol. 60, no. 2, February 2012 (2012-02-01), pages 1126 - 1131, XP011403555, DOI: doi:10.1109/TAP.2011.2173142
KWASI A. OPARE ET AL.: "Performance of an Ideal Wireless Orbital Angular Momentum Communication System Using Multiple-input Multiple-output Techniques", 2014 INTERNATIONAL CONFERENCE ON TELECOMMUNICATIONS AND MULTIMEDIA (TEMU), 30 June 2014 (2014-06-30), pages 144 - 149, XP032655935, DOI: 10.1109/TEMU.2014.6917751
J. WANG ET AL.: "Terabit free-space data transmission employing orbital angular momentum multiplexing", NATURE PHOTONICS, vol. 6, July 2012 (2012-07-01), pages 488 - 496, XP055375755, DOI: 10.1038/nphoton.2012.138
Z. LIY. OHASHIK. KASAI: "A Dual-Channel Wireless Communication System by Multiplexing Twisted Radio Wave", PROCEEDINGS OF 44TH EUROPEAN MICROWAVE CONFERENCE, October 2014 (2014-10-01)
See also references of EP 3691153A4
OVE EDFORS ET AL.: "Is Orbital Angular Momentum (OAM) Based Radio Communication an Unexploited Area?", IEEE TRANSACTIONS ON ANTENNAS AND PROPAGATION, vol. 60, no. 2, February 2012 (2012-02-01), pages 1126 - 1131, XP011403555, DOI: doi:10.1109/TAP.2011.2173142
KWASI A. OPARE ET AL.: "Performance of an Ideal Wireless Orbital Angular Momentum Communication System Using Multiple-input Multiple-output Techniques", 2014 INTERNATIONAL CONFERENCE ON TELECOMMUNICATIONS AND MULTIMEDIA (TEMU), 30 June 2014 (2014-06-30), pages 144 - 149, XP032655935, DOI: 10.1109/TEMU.2014.6917751
J. WANG ET AL.: "Terabit free-space data transmission employing orbital angular momentum multiplexing", NATURE PHOTONICS, vol. 6, July 2012 (2012-07-01), pages 488 - 496, XP055375755, DOI: 10.1038/nphoton.2012.138
Z. LIY. OHASHIK. KASAI: "A Dual-Channel Wireless Communication System by Multiplexing Twisted Radio Wave", PROCEEDINGS OF 44TH EUROPEAN MICROWAVE CONFERENCE, October 2014 (2014-10-01)
See also references of EP 3691153A4
Attorney, Agent or Firm:
FURUYA, Fumio et al. (JP)
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