Preprint Article Version 1 NOT YET PEER-REVIEWED

A Novel Low Computational Complexity Multiple Signal Representation Technique for PAPR Reduction in OFDM Systems

  1. Department of ECE, Jaypee Institute of Information Technology, Noida 201 309, India
Version 1 : Received: 13 August 2016 / Approved: 13 August 2016 / Online: 13 August 2016 (10:39:49 CEST)

How to cite: Joshi, A.; Airee, N. A Novel Low Computational Complexity Multiple Signal Representation Technique for PAPR Reduction in OFDM Systems. Preprints 2016, 2016080139 (doi: 10.20944/preprints201608.0139.v1). Joshi, A.; Airee, N. A Novel Low Computational Complexity Multiple Signal Representation Technique for PAPR Reduction in OFDM Systems. Preprints 2016, 2016080139 (doi: 10.20944/preprints201608.0139.v1).

Abstract

Orthogonal Frequency Division Multiplexing (OFDM) while being an efficient scheme for high data rate wireless communications has drawbacks such as higher Peak-to-Average Power Ratio (PAPR). To reduce PAPR, use of multiple signal representation technique such as Partial Transmit Sequence (PTS) is one of the favored techniques. However, the use of conventional PTS technique need excessive number of complex calculations in order to search for all permissible combinations of phase sequences causing steep increase in complexity in terms of complex computations. Paper aims to reduce the cumbersome process of phase selection by making use of the similarity of the phase vectors. The phase vectors are obtained sequentially and thus minimize the number of changes from one phase vector to another. Theoretical analysis shows that computational complexity is significantly reduced with the help of this proposed novel technique. We have also demonstrated that PAPR values are similar i.e. PAPR reduction capability remains similar but at reduced complexity.

Subject Areas

OFDM; PAPR; PTS

Readers' Comments and Ratings (0)

Discuss and rate this article
Views 128
Downloads 135
Comments 0
Metrics 0
Discuss and rate this article

×
Alerts
Notify me about updates to this article or when a peer-reviewed version is published.