NDLI: Power measurements of OFDM signals

Content Provider	IEEE Xplore Digital Library
Author	Briggs, M. Martinez, J. Bare, D.
Copyright Year	2004
Description	Author affiliation: Elliott Labs., Sunnyvale, CA, USA (Briggs, M.; Martinez, J.; Bare, D.)
Abstract	There are many ways to measure the output power from wireless devices $average power, peak envelope power, instantaneous peak power and average peak power being examples. In addition, there are multiple instruments and methods available to make these measurements - spectrum analyzers, power meters with peak power sensors, average power sensors and diode detectors. The dynamic nature of signals that use orthogonal frequency division multiplexing (OFDM) is such that these various methods can give widely different results depending on the type of measuring instrument used and the power measurement required. The requirements for output power in the regulatory standards can be confusing, leading to incorrect or inaccurate measurements. Problems can also be created when alternative methods of power measurements are used in the production line to set the output power of individual devices to ensure they comply with national restrictions on output power. The paper reviews the various methods used to make power measurements of OFDM signals for regulatory purposes and recommends suitable methods for production line measurements of 802.11a and 802.11g devices.
Starting Page	485
Ending Page	488
File Size	295482
Page Count	4
File Format	PDF
ISBN	0780384431
DOI	10.1109/ISEMC.2004.1349843
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2004-08-09
Publisher Place	USA
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Power measurement OFDM Power generation Instruments Production Wireless sensor networks Spectral analysis Envelope detectors Frequency measurement Measurement standards
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

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