NDLI: Adaptive frequency offset estimation for practical satellite communication channels

Content Provider	IEEE Xplore Digital Library
Author	Webber, J. Yofune, M. Yano, K. Ban, H. Kukutsu, N. Kobayashi, K.
Copyright Year	2014
Description	Author affiliation: Adv. Telecommun. Res. Int., Kyoto, Japan (Webber, J.; Yofune, M.; Yano, K.; Ban, H.; Kukutsu, N.; Kobayashi, K.)
Abstract	We have recently implemented a poly-polarization multiplexing (PPM) system as a hardware prototype in order to demonstrate its high spectral-efficiency in a satellite channel. The Luise and Reggiannini (L&R) algorithm is one of the frequency offset estimation methods suitable for use with the Digital Video Broadcasting - Satellite (DVB-S2) standard, and has also been implemented in our PPM receiver. In order to provide sufficient performance at the lowest SNR of about -2 dB, it is recommended to average the correlation estimates over 2048 frames. In higher SNR regions however, such a large averaging size is unnecessary and by reducing the size, the system can be made more responsive to changes in the channel state. In order to reduce the latency, we propose to measure the average noise power and select an efficient frame averaging length using a look-up-table. We show that the benefits of the proposed adaptive architecture can be extended to short UW lengths through increasing the separation of the UW symbols. Performance results show that the size of the averaging window can be substantially reduced whilst maintaining a target BER.
Sponsorship	IEEE Commun. Soc.
Starting Page	249
Ending Page	254
File Size	635244
Page Count	6
File Format	PDF
e-ISBN	9788996865032
DOI	10.1109/ICACT.2014.6778958
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2014-02-16
Publisher Place	South Korea
Access Restriction	Subscribed
Rights Holder	Global IT Research Institute (GIRI)
Subject Keyword	Bit error rate Correlation Table lookup Multiplexing Noise Estimation hardware implementation satellite communications polarization multiplexing frequency offset estimation adaptive algorithm latency reduction performance investigation
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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