On-Body and Off-Body 2.45 GHz MIMO Communications for Hearing Instrument Applications

Søren Helstrup Kvist; Pablo F.  Medina; Jesper Thaysen; Kaj Bjarne Jakobsen

On-Body and Off-Body 2.45 GHz MIMO Communications for Hearing Instrument Applications

Søren Helstrup Kvist, Pablo F. Medina, Jesper Thaysen, Kaj Bjarne Jakobsen

GN ReSound A/S

Research output: Chapter in Book/Report/Conference proceeding › Article in proceedings › Research › peer-review

Abstract

MIMO diversity antennas have been investigated for 2:45 GHz on-body and off-body hearing instrument communication links in an indoor environment. The 2 2 antenna setup consists of crossed, linearly polarized antennas. The measured results were treated as a four-branch diversity system. Diversity combining techniques are applied and the diversity gains are found at the 1% outage probability level. It was found that a diversity gain of 12 dB can be obtained for the on-body ear-to-ear link if both antennas at each side of the head are tangential to the surface of the head. If one of the antennas is
orthogonal to the head, the subchannel between the orthogonal antennas is much stronger than the other subchannels. In this case, no diversity gain is obtained. In the off-body link between the hearing instrument receiver and a stationary transmitter, diversity gains of up to 7 dB and 8 dB can be obtained for lineof-sight and non-line-of-sight, respectively.

Original language	English
Title of host publication	2013 7th European Conference on Antennas and Propagation (EuCAP)
Publisher	IEEE
Publication date	2013
Pages	2521-2525
Publication status	Published - 2013
Event	7th European Conference on Antennas and Propagation - Swedish Exhibition and Congress Centre, Gothenburg, Sweden Duration: 8 Apr 2013 → 12 Apr 2013 Conference number: 7 https://www.eucap2013.org/

Conference

Conference	7th European Conference on Antennas and Propagation
Number	7
Location	Swedish Exhibition and Congress Centre
Country/Territory	Sweden
City	Gothenburg
Period	08/04/2013 → 12/04/2013
Internet address	https://www.eucap2013.org/

Access to Document

http://www.eucap2013.org

OpenUrl availability

Full text

Cite this

@inproceedings{a68bf1f79c3c49928b3775ba74959152,

title = "On-Body and Off-Body 2.45 GHz MIMO Communications for Hearing Instrument Applications",

abstract = "MIMO diversity antennas have been investigated for 2:45 GHz on-body and off-body hearing instrument communication links in an indoor environment. The 2 2 antenna setup consists of crossed, linearly polarized antennas. The measured results were treated as a four-branch diversity system. Diversity combining techniques are applied and the diversity gains are found at the 1% outage probability level. It was found that a diversity gain of 12 dB can be obtained for the on-body ear-to-ear link if both antennas at each side of the head are tangential to the surface of the head. If one of the antennas is orthogonal to the head, the subchannel between the orthogonal antennas is much stronger than the other subchannels. In this case, no diversity gain is obtained. In the off-body link between the hearing instrument receiver and a stationary transmitter, diversity gains of up to 7 dB and 8 dB can be obtained for lineof-sight and non-line-of-sight, respectively. ",

author = "Kvist, {S{\o}ren Helstrup} and Medina, {Pablo F.} and Jesper Thaysen and Jakobsen, {Kaj Bjarne}",

year = "2013",

language = "English",

pages = "2521--2525",

booktitle = "2013 7th European Conference on Antennas and Propagation (EuCAP)",

publisher = "IEEE",

address = "United States",

note = "7th European Conference on Antennas and Propagation , EuCAP 2013 ; Conference date: 08-04-2013 Through 12-04-2013",

url = "https://www.eucap2013.org/",

}

TY - GEN

T1 - On-Body and Off-Body 2.45 GHz MIMO Communications for Hearing Instrument Applications

AU - Kvist, Søren Helstrup

AU - Medina, Pablo F.

AU - Thaysen, Jesper

AU - Jakobsen, Kaj Bjarne

N1 - Conference code: 7

PY - 2013

Y1 - 2013

N2 - MIMO diversity antennas have been investigated for 2:45 GHz on-body and off-body hearing instrument communication links in an indoor environment. The 2 2 antenna setup consists of crossed, linearly polarized antennas. The measured results were treated as a four-branch diversity system. Diversity combining techniques are applied and the diversity gains are found at the 1% outage probability level. It was found that a diversity gain of 12 dB can be obtained for the on-body ear-to-ear link if both antennas at each side of the head are tangential to the surface of the head. If one of the antennas is orthogonal to the head, the subchannel between the orthogonal antennas is much stronger than the other subchannels. In this case, no diversity gain is obtained. In the off-body link between the hearing instrument receiver and a stationary transmitter, diversity gains of up to 7 dB and 8 dB can be obtained for lineof-sight and non-line-of-sight, respectively.

AB - MIMO diversity antennas have been investigated for 2:45 GHz on-body and off-body hearing instrument communication links in an indoor environment. The 2 2 antenna setup consists of crossed, linearly polarized antennas. The measured results were treated as a four-branch diversity system. Diversity combining techniques are applied and the diversity gains are found at the 1% outage probability level. It was found that a diversity gain of 12 dB can be obtained for the on-body ear-to-ear link if both antennas at each side of the head are tangential to the surface of the head. If one of the antennas is orthogonal to the head, the subchannel between the orthogonal antennas is much stronger than the other subchannels. In this case, no diversity gain is obtained. In the off-body link between the hearing instrument receiver and a stationary transmitter, diversity gains of up to 7 dB and 8 dB can be obtained for lineof-sight and non-line-of-sight, respectively.

M3 - Article in proceedings

SP - 2521

EP - 2525

BT - 2013 7th European Conference on Antennas and Propagation (EuCAP)

PB - IEEE

T2 - 7th European Conference on Antennas and Propagation

Y2 - 8 April 2013 through 12 April 2013

ER -

On-Body and Off-Body 2.45 GHz MIMO Communications for Hearing Instrument Applications

Abstract

Conference

Access to Document

OpenUrl availability

Fingerprint

Cite this