A 2-Stage SI estimation scheme for SLM-OFDM systems without SI transmission

Saheed Adegbite, Scott McMeekin, Brian Stewart

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


This paper addresses the issue of high computational complexity associated with side information (SI) estimation in orthogonal frequency division multiplexing (OFDM) systems that implement selected mapping (SLM) to reduce peak-to- average power ratio (PAPR). The proposed method is based on a slightly modified SLM approach that enables the use of a low complexity binary detection criterion for SI estimation, without the need for SI transmission. Simulations show that the combined PAPR reduction and BER performance of the proposed method is similar to both pilot-assisted Maximum-Likelihood (PAML) SI estimation scheme and standard SLM that presumes perfect knowledge of SI. In addition, relative to the PAML scheme, the proposed method offers significantly reduced computational complexity.
Original languageEnglish
Title of host publication2015 Wireless Telecommunications Symposium, WTS 2015
Number of pages5
ISBN (Electronic)9781479967766
ISBN (Print)9781479967766
Publication statusPublished - 2 Jun 2015

Publication series

NameWireless Telecommunications Symposium
ISSN (Print)1934-5070


  • Low complexity data decoding
  • OFDM
  • PAPR
  • SLM
  • Side information


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