Title :
PAPR reduction in OFDM for SC-FDMA channels
Author :
Sivakumar, P. ; Sangeetha, S. ; Rajaram, M.
Author_Institution :
Anna Univ., Chennai, India
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;
Conference_Titel :
Signal Processing, Communication, Computing and Networking Technologies (ICSCCN), 2011 International Conference on
Conference_Location :
Thuckafay
Print_ISBN :
978-1-61284-654-5
DOI :
10.1109/ICSCCN.2011.6024504
