News Updates Wednesday 16th Aug 2017 :
  • Welcome to International Press Corporation, world's leading publishers, We have served more than 10000+ authors
  • Articles are invited in engineering, science, technology, management, industrial engg, biotechnology etc.
  • Paper submission last date of July/Aug 2017 extended to 20 Aug 2017, Submit online or at editor.ijcet@inpressco.com
  • Our journals are indexed in University of Regensburg Germany, Google Scholar, Cross Reference data bases
  • Applications for reviewers are invited and can be sent directly to concerned editor's mail

Modified Selected Mapping Technique for Peak-to-Average Power Ratio Reduction in Orthogonal Frequency Division Multiplexing Systems


Author : Dike U. Ike, Samuel N. John and Charles Ndujiuba

Pages : 1427-1432
Download PDF
Abstract

Orthogonal Frequency Division Multiplexing (OFDM) is a type of multicarrier transmission technique with capability of supporting very high data rates. The high Peak-to-Average Power Ratio (PAPR), which leads to OFDM signal distortion and power inefficiency in the OFDM system transmitter radio frequency amplifier, shows a major limitation of OFDM. Several PAPR reduction techniques have been proposed and used, such as, tone injection, amplitude clipping, coding, tone injection, Partial Transmit Sequence (PTS), interleaving, and Selected Mapping (SLM). This paper introduced an effective SLM technique which gives a better OFDM PAPR reduction performance than conventional SLM technique. In achieving this, phase rotation of OFDM symbol is performed using a new set of phase rotation factors, and a Hann window function is applied to further reduce peaks in the OFDM signal. The results of computer simulations show that the PAPR reduction performance of the proposed technique is higher than conventional SLM by 0.2dB.

Keywords: OFDM, Multicarrier Transmission, Selected Mapping, Modified Selected Mapping, PAPR.

Article published in International Journal of Current Engineering and Technology, Vol.7, No.4 (Aug-2017)

Call for Papers
  1. IJCET- July/Aug-2017 Issue

    Submission Last Date extended to
    20 Aug 2017
  2. IJTT-Sept-2017
  3. IJAIE-Sept-2017
  4. IJCSB-Sept-2017
Facts and figures
  • Inpressco Google Scholar
  • Inpressco Science Central
  • Inpressco Global impact factor
  • Inpressco aap

International Press corporation is licensed under a Creative Commons Attribution-Non Commercial NoDerivs 3.0 Unported License
©2010-2017 INPRESSCO® All Rights Reserved