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

S. A. Adegbite, S. G. McMeekin, B. G. Stewart

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


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
Place of Publication[Piscataway, NJ]
Number of pages5
Publication statusPublished - 4 Jun 2015
Externally publishedYes
Event14th Annual Wireless Telecommunications Symposium, WTS 2015 - New York, United States
Duration: 15 Apr 201517 Apr 2015


Conference14th Annual Wireless Telecommunications Symposium, WTS 2015
Country/TerritoryUnited States
CityNew York


  • low complexity data decoding
  • OFDM
  • PAPR
  • side information (SI) estimation
  • SLM

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