Relationship Between Capacity and Pathloss for Indoor MIMO Channels

Jesper Ødum Nielsen; Jørgen Bach Andersen; Gerhard Bauch; Markus Herdin

doi:10.1109/PIMRC.2006.253925

Relationship Between Capacity and Pathloss for Indoor MIMO Channels

Jesper Ødum Nielsen, Jørgen Bach Andersen, Gerhard Bauch, Markus Herdin

Department of Electronic Systems

Research output: Contribution to book/anthology/report/conference proceeding › Article in proceeding › Research › peer-review

10 Citations (Scopus)

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Abstract

MIMO transmission systems exploit scattering in the radio channel to achieve high capacity for a given SNR. A high pathloss is generally expected for channels with rich scattering, suggesting that a high SNR and rich multipath are competing goals. The current work investigates this issue based on measurements obtained with a 16 × 32 MIMO channel sounder for the 5.8 GHz band. The measurements were carried out in various indoor scenarios where different sizes of both the transmitter and receiver antenna arrays are investigated, 1 × 1 up to 16 × 32. A moderate correlation between pathloss and median capacity was found. However, the higher richness can not compensate for the decrease in capacity due to increased pathloss. Assuming a ﬁxed Tx power, the median capacity was found to depend approximately linearly on the pathloss. The slope of the linear relation depends on the effective rank of the channel, which in turn was found to be approximately linearly dependent on the number of antennas, assuming a symmetric MIMO channel.

Original language	English
Title of host publication	IEEE 17th International Symposium on Personal, Indoor and Mobile Radio Communications, 2006
Number of pages	5
Publisher	Electrical Engineering/Electronics, Computer, Communications and Information Technology Association
Publication date	2006
ISBN (Print)	1424403308
DOIs	https://doi.org/10.1109/PIMRC.2006.253925
Publication status	Published - 2006
Event	2006 IEEE 17th International Symposium on Personal, Indoor and Mobile Radio Communications - Helsinki, Finland Duration: 11 Sept 2006 → 14 Sept 2006 Conference number: 17

Conference

Conference	2006 IEEE 17th International Symposium on Personal, Indoor and Mobile Radio Communications
Number	17
Country/Territory	Finland
City	Helsinki
Period	11/09/2006 → 14/09/2006

Bibliographical note

© 2006 IEEE. Personal use of this material is permitted. Permission from IEEE must be obtained
for all other uses, including reprinting/republishing this material for advertising or promotional
purposes, creating new collective works for resale or redistribution to servers or lists, or reuse of
any copyrighted component of this work in other works.”

Keywords

MIMO
channel richness
indoor radio channel

Access to Document

10.1109/PIMRC.2006.253925

04022537Final published version, 396 KB

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Nielsen, J. Ø., Andersen, J. B., Bauch, G., & Herdin, M. (2006). Relationship Between Capacity and Pathloss for Indoor MIMO Channels. In IEEE 17th International Symposium on Personal, Indoor and Mobile Radio Communications, 2006 Electrical Engineering/Electronics, Computer, Communications and Information Technology Association. https://doi.org/10.1109/PIMRC.2006.253925

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title = "Relationship Between Capacity and Pathloss for Indoor MIMO Channels",

abstract = "MIMO transmission systems exploit scattering in the radio channel to achieve high capacity for a given SNR. A high pathloss is generally expected for channels with rich scattering, suggesting that a high SNR and rich multipath are competing goals. The current work investigates this issue based on measurements obtained with a 16 × 32 MIMO channel sounder for the 5.8 GHz band. The measurements were carried out in various indoor scenarios where different sizes of both the transmitter and receiver antenna arrays are investigated, 1 × 1 up to 16 × 32. A moderate correlation between pathloss and median capacity was found. However, the higher richness can not compensate for the decrease in capacity due to increased pathloss. Assuming a ﬁxed Tx power, the median capacity was found to depend approximately linearly on the pathloss. The slope of the linear relation depends on the effective rank of the channel, which in turn was found to be approximately linearly dependent on the number of antennas, assuming a symmetric MIMO channel.",

keywords = "MIMO, channel richness, indoor radio channel",

author = "Nielsen, {Jesper {\O}dum} and Andersen, {J{\o}rgen Bach} and Gerhard Bauch and Markus Herdin",

note = "{\textcopyright} 2006 IEEE. Personal use of this material is permitted. Permission from IEEE must be obtained for all other uses, including reprinting/republishing this material for advertising or promotional purposes, creating new collective works for resale or redistribution to servers or lists, or reuse of any copyrighted component of this work in other works.”; 2006 IEEE 17th International Symposium on Personal, Indoor and Mobile Radio Communications ; Conference date: 11-09-2006 Through 14-09-2006",

year = "2006",

doi = "10.1109/PIMRC.2006.253925",

language = "English",

isbn = "1424403308",

booktitle = "IEEE 17th International Symposium on Personal, Indoor and Mobile Radio Communications, 2006",

publisher = "Electrical Engineering/Electronics, Computer, Communications and Information Technology Association",

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Nielsen, JØ, Andersen, JB, Bauch, G & Herdin, M 2006, Relationship Between Capacity and Pathloss for Indoor MIMO Channels. in IEEE 17th International Symposium on Personal, Indoor and Mobile Radio Communications, 2006. Electrical Engineering/Electronics, Computer, Communications and Information Technology Association, 2006 IEEE 17th International Symposium on Personal, Indoor and Mobile Radio Communications, Helsinki, Finland, 11/09/2006. https://doi.org/10.1109/PIMRC.2006.253925

Relationship Between Capacity and Pathloss for Indoor MIMO Channels. / Nielsen, Jesper Ødum; Andersen, Jørgen Bach; Bauch, Gerhard et al.
IEEE 17th International Symposium on Personal, Indoor and Mobile Radio Communications, 2006. Electrical Engineering/Electronics, Computer, Communications and Information Technology Association, 2006.

Research output: Contribution to book/anthology/report/conference proceeding › Article in proceeding › Research › peer-review

TY - GEN

T1 - Relationship Between Capacity and Pathloss for Indoor MIMO Channels

AU - Nielsen, Jesper Ødum

AU - Andersen, Jørgen Bach

AU - Bauch, Gerhard

AU - Herdin, Markus

N1 - Conference code: 17

PY - 2006

Y1 - 2006

N2 - MIMO transmission systems exploit scattering in the radio channel to achieve high capacity for a given SNR. A high pathloss is generally expected for channels with rich scattering, suggesting that a high SNR and rich multipath are competing goals. The current work investigates this issue based on measurements obtained with a 16 × 32 MIMO channel sounder for the 5.8 GHz band. The measurements were carried out in various indoor scenarios where different sizes of both the transmitter and receiver antenna arrays are investigated, 1 × 1 up to 16 × 32. A moderate correlation between pathloss and median capacity was found. However, the higher richness can not compensate for the decrease in capacity due to increased pathloss. Assuming a ﬁxed Tx power, the median capacity was found to depend approximately linearly on the pathloss. The slope of the linear relation depends on the effective rank of the channel, which in turn was found to be approximately linearly dependent on the number of antennas, assuming a symmetric MIMO channel.

AB - MIMO transmission systems exploit scattering in the radio channel to achieve high capacity for a given SNR. A high pathloss is generally expected for channels with rich scattering, suggesting that a high SNR and rich multipath are competing goals. The current work investigates this issue based on measurements obtained with a 16 × 32 MIMO channel sounder for the 5.8 GHz band. The measurements were carried out in various indoor scenarios where different sizes of both the transmitter and receiver antenna arrays are investigated, 1 × 1 up to 16 × 32. A moderate correlation between pathloss and median capacity was found. However, the higher richness can not compensate for the decrease in capacity due to increased pathloss. Assuming a ﬁxed Tx power, the median capacity was found to depend approximately linearly on the pathloss. The slope of the linear relation depends on the effective rank of the channel, which in turn was found to be approximately linearly dependent on the number of antennas, assuming a symmetric MIMO channel.

KW - MIMO

KW - channel richness

KW - indoor radio channel

U2 - 10.1109/PIMRC.2006.253925

DO - 10.1109/PIMRC.2006.253925

M3 - Article in proceeding

SN - 1424403308

BT - IEEE 17th International Symposium on Personal, Indoor and Mobile Radio Communications, 2006

PB - Electrical Engineering/Electronics, Computer, Communications and Information Technology Association

T2 - 2006 IEEE 17th International Symposium on Personal, Indoor and Mobile Radio Communications

Y2 - 11 September 2006 through 14 September 2006

ER -

Relationship Between Capacity and Pathloss for Indoor MIMO Channels

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Keywords

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