NDLI: Methods and measurements of channel phase difference in 2×2 microwave LOS-MIMO systems

Content Provider	IEEE Xplore Digital Library
Author	Lei Bao Olsson, B.-E.
Copyright Year	2015
Description	Author affiliation: Ericsson Res., Ericsson AB, Gothenburg, Sweden (Lei Bao; Olsson, B.-E.)
Abstract	Two channel phase measurement methods of microwave Line-of-Sight Multi-Input Multi-Output (LOS-MIMO) systems are investigated. The main focus of the measurements is the MIMO phase difference which is a practically useful metric to assess LOS-MIMO channel condition and system performance. The MIMO phase difference is mainly determined by antenna positions, ground effects and atmospheric variations. The relation between antenna positions and channel condition was already addressed in a number of earlier works, while the atmospheric impact and the resulting link availability are rarely studied. In order to get insights into the phase variation of LOS-MIMO channels, we have performed measurements in order to study open-air performance of LOS-MIMO systems. Two phase measurement methods, one DSP-based approach and one sinusoidal-tone-based analog technique, are developed and verified in two outdoor test links. The measurements from both methods are in good agreement with the theoretical calculation based on the antenna positions. The on-going long-term measurements will be used in the development of an availability model for LOS-MIMO systems.
Starting Page	1358
Ending Page	1363
File Size	735032
Page Count	6
File Format	PDF
e-ISBN	9781467364324
DOI	10.1109/ICC.2015.7248512
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2015-06-08
Publisher Place	UK
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	MIMO Receiving antennas Phase measurement Antenna measurements Transmitting antennas
Content Type	Text
Resource Type	Article

Sl.	Authority	Responsibilities	Communication Details
1	Ministry of Education (GoI), Department of Higher Education	Sanctioning Authority	https://www.education.gov.in/ict-initiatives
2	Indian Institute of Technology Kharagpur	Host Institute of the Project: The host institute of the project is responsible for providing infrastructure support and hosting the project	https://www.iitkgp.ac.in
3	National Digital Library of India Office, Indian Institute of Technology Kharagpur	The administrative and infrastructural headquarters of the project	Dr. B. Sutradhar bsutra@ndl.gov.in
4	Project PI / Joint PI	Principal Investigator and Joint Principal Investigators of the project	Dr. B. Sutradhar bsutra@ndl.gov.in Prof. Saswat Chakrabarti will be added soon
5	Website/Portal (Helpdesk)	Queries regarding NDLI and its services	support@ndl.gov.in
6	Contents and Copyright Issues	Queries related to content curation and copyright issues	content@ndl.gov.in
7	National Digital Library of India Club (NDLI Club)	Queries related to NDLI Club formation, support, user awareness program, seminar/symposium, collaboration, social media, promotion, and outreach	clubsupport@ndl.gov.in
8	Digital Preservation Centre (DPC)	Assistance with digitizing and archiving copyright-free printed books	dpc@ndl.gov.in
9	IDR Setup or Support	Queries related to establishment and support of Institutional Digital Repository (IDR) and IDR workshops	idr@ndl.gov.in