Combined discrete cosine transform and two-piecewise companding transform for PAPR reduction in OFDM signals

Author

Thititummajariya, Wisan ; Chayratsami, P.

Author_Institution

Dept. of Eng. Educ., King Mongkut Inst. of Technol., Ladkrabang, Thailand

fYear

2013

fDate

26-28 Nov. 2013

Firstpage

316

Lastpage

320

Abstract

The high peak-to-average power ratio (PAPR) is one major drawback of orthogonal frequency division multiplexing (OFDM) systems. In this paper, a new companding technique is proposed by using the combination of the discrete cosine transform (DCT) and two-piecewise companding (TPWC) transform. Computer simulation results show that the proposed scheme offers better PAPR reduction and also improve bit error rate (BER) and power spectrum density (PSD) performances compared with the ordinary companding method.

Keywords

OFDM modulation; discrete cosine transforms; error statistics; telecommunication power management; BER; DCT; OFDM signals; PAPR reduction; PSD; TPWC transform; bit error rate; companding technique; computer simulation; discrete cosine transform; orthogonal frequency division multiplexing signals; peak-to-average power ratio; power spectrum density; two-piecewise companding transform; Bit error rate; Conferences; Discrete cosine transforms; Modulation; Peak to average power ratio; Companding; DCT; OFDM; PAPR; TPWC;

fLanguage

English

Publisher

ieee

Conference_Titel

Communications (MICC), 2013 IEEE Malaysia International Conference on

Conference_Location

Kuala Lumpur

Type

conf

DOI

10.1109/MICC.2013.6805846

Filename

6805846