WFRF:(Edfors Ove)
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Peak power reduction for OFDM systems with orthogonal pilot sequences
- Garcia, MJF (author)
-
- 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
- Paez-Borrallo, JM (author)
- (creator_code:org_t)
- 2006
- 2006
- English.
- In: IEEE Transactions on Wireless Communications. - 1536-1276. ; 5:1, s. 47-51
- Journal article (peer-reviewed)
Abstract
Subject headings
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- In this paper, a novel peak-to-average power reduction approach for orthogonal frequency division multiplexing (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 spread throughout the 2D time-frequency grid. These pilot symbols are employed to simultaneously perform distortionless peak power reduction with a suboptimum technique named orthogonal pilot sequences (OPS), which reduces additional system complexity and side information compared to optimum pilot values. This proposal attains a further step over other previous works, since this set of sequences allows blind detection at the receiver without prior knowledge of any side information.
Subject headings
- TEKNIK OCH TEKNOLOGIER -- Elektroteknik och elektronik (hsv//swe)
- ENGINEERING AND TECHNOLOGY -- Electrical Engineering, Electronic Engineering, Information Engineering (hsv//eng)
Keyword
- peak-to-average power
- OFDM
- pilot symbols
Publication and Content Type
- art (subject category)
- ref (subject category)
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