Analysis of Wiener-Hammerstein equalizer for downlink LTE system

Nasreddine Mallouki, Bechir Nsiri, Sofiene Mhatli, Mohammad Ghanbarisabagh, Walid Hakimi, Mahmoud Ammar, Elias Giacoumidis, Rabah Attia

Research output: Chapter in Book/Published conference outputConference publication


We propose a Wiener-Hammerstein (W-H) channel estimation algorithm for Long-Term Evolution (LTE) systems. The LTE standard provides known data as pilot symbols and exploits them through coherent detection to improve system performance. These drivers are placed in a hybrid way to cover up both time and frequency domain. Our aim is to adapt the W-H equalizer (W-H/E) to LTE standard for compensation of both linear and nonlinear effects induced by power amplifiers and multipath channels. We evaluate the performance of the W-H/E for a Downlink LTE system in terms of BLER, EVM and Throughput versus SNR. Afterwards, we compare the results with a traditional Least-Mean Square (LMS) equalizer. It is shown that W-H/E can significantly reduce both linear and nonlinear distortions compared to LMS and improve LTE Downlink system performance.

Original languageEnglish
Title of host publicationProceedings of 2015 Science and Information conference (SAI)
Number of pages6
ISBN (Print)978-1-4799-8547-0
Publication statusPublished - 2015
EventScience and Information conference - London, United Kingdom
Duration: 28 Jul 201530 Jul 2015


ConferenceScience and Information conference
Abbreviated titleSAI 2015
Country/TerritoryUnited Kingdom


  • LMS
  • LTE
  • Wiener-Hammerstein


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