NDLI: Muos Ka Downlink Performance Evaluation with Transmitter Distortion

Content Provider	IEEE Xplore Digital Library
Author	Chu, L.C. Cheng, D.
Copyright Year	2006
Description	Author affiliation: Adv. Technol. Center, Lockheed Martin Corp., Sunnyvale, CA (Chu, L.C.)
Abstract	Mobile user objective system (MUOS) employs a Ka-band feeder downlink from the satellite to the radio access facility (RAF). The feeder downlink transmits an octal phase shift keying (8-PSK) modulated signal. A high power amplifier (HPA) is used for the amplification of transmitted signals. The HPA produces distortions by creating AM/AM and AM/PM modulations in the transmitted signals. This non-linearity induces bandwidth expansion and nonlinear distortion in the in-band signals. 8-PSK is sensitive to HPA non-linear distortion. In this paper, we analyze the sensitivity of the MUOS feeder downlink bit error rate (BER) degradation to HPA output back-off (OBO). The analysis model consists of the non-linearity, additive white Gaussian noise (AWGN), and ideal carrier recovery and synchronization. Monte Carlo bit error rate (BER) simulations are performed with the analysis model to derive the distorted energy-per-bit to noise density ratio $(E_{b}/N_{o$ ) at the average BER. Finally, we derive reduction in $E_{b}/N_{o}$ to achieve the target BER and characterize E $_{b}/N_{o}$ degradation sensitivity to HPA OBO
Starting Page	1
Ending Page	5
File Size	6295147
Page Count	5
File Format	PDF
ISBN	142440617X
DOI	10.1109/MILCOM.2006.302045
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2006-10-23
Publisher Place	USA
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Downlink Bit error rate Nonlinear distortion Degradation Additive white noise AWGN Radio transmitters Satellite broadcasting Phase shift keying Phase modulation
Content Type	Text
Resource Type	Article

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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
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