PAPR reduction and BER improvement by using logrithmic companding hybrid with SLM technique in bit interleved COFDM system

Author

Toor, Gurtej Singh ; Singh, Harshavardhan ; Bhandari, Amandeep Singh

Author_Institution

Electron. & Commun. Dept. UCOE, Punjabi Univ., Patiala, India

fYear

2014

fDate

25-26 Sept. 2014

Firstpage

604

Lastpage

608

Abstract

OFDM is the most commonly used modulation technique in today´s world due to its capability of supporting high data rates. The major disadvantage in using OFDM is its high Peak to Average Power Ratio (PAPR). This makes very difficult for designers to design efficient RF amplifiers for transmission. In this paper a joint technique of Logrithmic Companding and Selective Mapping is presented which efficiently reduces PAPR. Interleaving along with Convolutional Coding is used to improve BER performance hence the word COFDM.

Keywords

OFDM modulation; convolutional codes; error statistics; interleaved codes; BER performance improvement; PAPR reduction; RF amplifiers; SLM technique; bit interleved COFDM system; coded orthogonal frequency division multiplexing; convolutional coding; high data rates; high peak-to-average power ratio; logarithmic companding hybrid; modulation technique; selective mapping; Bit error rate; Convolution; Convolutional codes; Encoding; Modulation; Peak to average power ratio; Bit Error Rate (BER); Coded Orthogonal Frequency Division Multiplexing (COFDM); Companding; Convolutional Code; Interleaving; Peak to Average Power Ratio (PAPR); Selective Maping (SLM);

fLanguage

English

Publisher

ieee

Conference_Titel

Confluence The Next Generation Information Technology Summit (Confluence), 2014 5th International Conference -

Conference_Location

Noida

Print_ISBN

978-1-4799-4237-4

Type

conf

DOI

10.1109/CONFLUENCE.2014.6949244

Filename

6949244