A novel simple algorithm to enhance the peak to average ratio of MC-CDMA system

Montadar Abas Taher, Mandeep Singh Jit Singh, Mahamod Ismail, Hussain Falih Mahdi, Mohammad Tariqul Islam, Abidaoun Hamdan Shallal

Research output: Chapter in Book/Report/Conference proceedingConference contribution

1 Citation (Scopus)

Abstract

The peak to Average Ratio (PAR) or peak to average power ratio (PAPR) is a major drawback of most the multicarrier communications systems. In Orthogonal Frequency Division Multiplexing (OFDM), the PAPR is around 12∼13 dB. Also in the Code Division Multiple Access (CDMA), the PAPR is appeared. By combining these two systems (CDMA and OFDM), a good system can be produced which it supports high capacity (multi user multiplexing) with high bit rate. Still the PAPR appeared in the new system because it is a multicarrier system as well. In this work we proposed a novel algorithm to enhance the PAPR which is called 'Half Length Phase Updating ' (HLPU), it is called half because the phase updating will be applied to only half of the IFFT length (N/2). The HLPU will be predefined both in the transmitter and the receiver, so that, no need to send even one bit of side information from the transmitter to the receiver. This additional block in the system will be inserted before the Inverse Fast Fourier Transform (IFFT) of the Multicarrier Code Division Multiple Access (MC-CDMA) system. The simulation results proved that there is 94.2% reduction in the system complexity and a reduction in the PAPR of around 2 dB has been obtained.

Original languageEnglish
Title of host publication2011 IEEE International Conference on Signal and Image Processing Applications, ICSIPA 2011
Pages324-326
Number of pages3
DOIs
Publication statusPublished - 2011
Event2011 2nd IEEE International Conference on Signal and Image Processing Applications, ICSIPA 2011 - Kuala Lumpur
Duration: 16 Nov 201118 Nov 2011

Other

Other2011 2nd IEEE International Conference on Signal and Image Processing Applications, ICSIPA 2011
CityKuala Lumpur
Period16/11/1118/11/11

Fingerprint

Code division multiple access
Fast Fourier transforms
Orthogonal frequency division multiplexing
Transmitters
Multiplexing
Communication systems

Keywords

  • CDMA
  • HLPU
  • MC-CDMA
  • OFDM
  • PAPR

ASJC Scopus subject areas

  • Computer Vision and Pattern Recognition
  • Signal Processing

Cite this

Taher, M. A., Jit Singh, M. S., Ismail, M., Mahdi, H. F., Islam, M. T., & Shallal, A. H. (2011). A novel simple algorithm to enhance the peak to average ratio of MC-CDMA system. In 2011 IEEE International Conference on Signal and Image Processing Applications, ICSIPA 2011 (pp. 324-326). [6144116] https://doi.org/10.1109/ICSIPA.2011.6144116

A novel simple algorithm to enhance the peak to average ratio of MC-CDMA system. / Taher, Montadar Abas; Jit Singh, Mandeep Singh; Ismail, Mahamod; Mahdi, Hussain Falih; Islam, Mohammad Tariqul; Shallal, Abidaoun Hamdan.

2011 IEEE International Conference on Signal and Image Processing Applications, ICSIPA 2011. 2011. p. 324-326 6144116.

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Taher, MA, Jit Singh, MS, Ismail, M, Mahdi, HF, Islam, MT & Shallal, AH 2011, A novel simple algorithm to enhance the peak to average ratio of MC-CDMA system. in 2011 IEEE International Conference on Signal and Image Processing Applications, ICSIPA 2011., 6144116, pp. 324-326, 2011 2nd IEEE International Conference on Signal and Image Processing Applications, ICSIPA 2011, Kuala Lumpur, 16/11/11. https://doi.org/10.1109/ICSIPA.2011.6144116
Taher MA, Jit Singh MS, Ismail M, Mahdi HF, Islam MT, Shallal AH. A novel simple algorithm to enhance the peak to average ratio of MC-CDMA system. In 2011 IEEE International Conference on Signal and Image Processing Applications, ICSIPA 2011. 2011. p. 324-326. 6144116 https://doi.org/10.1109/ICSIPA.2011.6144116
Taher, Montadar Abas ; Jit Singh, Mandeep Singh ; Ismail, Mahamod ; Mahdi, Hussain Falih ; Islam, Mohammad Tariqul ; Shallal, Abidaoun Hamdan. / A novel simple algorithm to enhance the peak to average ratio of MC-CDMA system. 2011 IEEE International Conference on Signal and Image Processing Applications, ICSIPA 2011. 2011. pp. 324-326
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