PAPR reduction in OFDM for SC-FDMA channels

Author

Sivakumar, P. ; Sangeetha, S. ; Rajaram, M.

Author_Institution

Anna Univ., Chennai, India

fYear

2011

fDate

21-22 July 2011

Firstpage

6

Lastpage

9

Abstract

Single carrier frequency division multiple access (SC-FDMA) is one well-known scheme, which has recently become a preferred choice for uplink channels. Due to the usage of single carrier, the performance of SC-FDMA systems degrades in deep frequency selective fading channels. In this paper Peak to average power ratio is reduced in OFDM for SC-FDMA channels is proposed. SC-FDMA is being considered to simplify the transmitter in the handsets and reduce the power consumption with low PAPR.lt is shown by the simulation results that subcarrier mapping of SC-FDMA system performance could be achieved under all kinds of situations for multi-user systems. This structure can be used in the broadcasting uplink channels with SC-FDMA scheme.

Keywords

OFDM modulation; broadcast channels; fading channels; frequency division multiple access; OFDM; PAPR reduction; SC-FDMA channels; broadcasting uplink channels; deep frequency selective fading channels; multiuser systems; power consumption reduction; single carrier frequency division multiple access; transmitter; Frequency division multiaccess; Irrigation; Peak to average power ratio; Phase shift keying; Signal to noise ratio; Decision feedback equalizer; SC-FDMA; frequency domain; uplink channels;

fLanguage

English

Publisher

ieee

Conference_Titel

Signal Processing, Communication, Computing and Networking Technologies (ICSCCN), 2011 International Conference on

Conference_Location

Thuckafay

Print_ISBN

978-1-61284-654-5

Type

conf

DOI

10.1109/ICSCCN.2011.6024504

Filename

6024504