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Joint channel estim...
Joint channel estimation and peak-to-average power reduction in coherent OFDM: a novel approach
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Fernández-Getino Garcia, Maria Julia (author)
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- Edfors, Ove (author)
- Lund University,Lunds universitet,Institutionen för elektro- och informationsteknik,Institutioner vid LTH,Lunds Tekniska Högskola,Department of Electrical and Information Technology,Departments at LTH,Faculty of Engineering, LTH
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Páez-Borrallo, José M. (author)
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(creator_code:org_t)
- 2001
- 2001
- English 5 s.
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In: Proc. IEEE Vehicular Technology Conference. - 0780367286 ; 2, s. 815-819
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Abstract
Subject headings
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- A new peak-to-average power reduction approach for OFDM has been addressed. Two-dimensional pilot-symbol assisted modulation (2D-PSAM) is employed in coherent OFDM for channel estimation and it is based on inserting known symbols spreaded out throughout the 2D time-frequency grid. We show that these scattered symbols can also be employed to perform distortionless peak power reduction, with a negligible loss in data-rate. To reduce additional system complexity and side information, several suboptimal strategies are proposed. A comparison between the two schemes with different approaches to the joint design of pilot symbols for both channel estimation and peak power reduction, has also been carried out
Subject headings
- TEKNIK OCH TEKNOLOGIER -- Elektroteknik och elektronik (hsv//swe)
- ENGINEERING AND TECHNOLOGY -- Electrical Engineering, Electronic Engineering, Information Engineering (hsv//eng)
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- ref (subject category)
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