Comparision of three PTS techniques to reduce PAPR in OFDM systems

May 2nd, 2015
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— In this paper, three different methods on Partial Transmit Sequence are reviewed. In first method [1]: a novel subblock partition scheme (SPS) for PTS OFDM is proposed and analyzed. In this scheme, signals assigned randomly in partial subbands are duplicated and concatenated repetitively to generate each subblock.

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Comparision of three PTS techniques to reduce PAPR in OFDM systemsISSN: 2265-2765Garima Singhal et al, GJCER, Vol 2 (3), 2013, 107-111Garima Singhal1 and Manoj Kumar21Dept.of Electronics and Communication, Bansthali University, India 2Manager D&E, Bharat Electronics Limited, IndiaEmail: 1garimasinghal.888@gmail.com, 2belmanoj@gmail.comAbstract In this paper, three different methods on Partial Transmit Sequence are reviewed. In first method [1]: a novel subblock partition scheme (SPS) for PTS OFDM is proposedand analyzed. In this scheme, signals assigned randomly inpartial subbands are duplicated and concatenatedrepetitively to generate each subblock. In second [2]: a new PTS based PAPR reduction technique of marginalcomplexity is reviewed. This technique does not require theexplicit transmission of side information. The decoder usesthe predefined values of pilot tones and explores all thepermissible combinations of weighting factors in order toidentify the factor combination that has been selected andused by the transmitter. In third method [3]: 2n-pointinverse fast Fourier transform (IFFT) is divided into twoparts. An input symbol sequence is partially transformedusing the first l stages of IFFT into an intermediate signal sequence and the intermediate signal sequence is partitioned into a number of intermediate signal subsequences. Then, the remaining n-l stages of IFFT are applied to each of theintermediate signal subsequences and the resulti

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