Channel Estimated Modulation Techniques for Wireless Communication Systems: Review

Year : 2025 | Volume : 15 | Issue : 02 | Page : 1 10
    By

    Sarika Sudhakar Apshankar,

  • Chandani Sharma,

  1. Research Scholar, Department of Electrical Engineering, Shri Venkateshwara University, Gajraula, Uttar Pradesh, India
  2. Assistant Professor, Department of Electrical Engineering, Shri Venkateshwara University, Gajraula, Uttar Pradesh, India

Abstract

The high spectrum and energy capabilities of Multiple Input Multiple Output systems make them a propitious technology for 5th-generation wireless communication systems. The acquisition of channel information is crucial for utilizing the potential gains of the multi-modal systems. Numerous studies have established channel estimation techniques and are still in research which faced several challenges with downlink-uplink overheads, complexities, and pilot contamination. This work discusses the insights obtained from the reviewed literature which are mainly focused on the channel estimation types, modulation schemes, the advantages, and the generalized summary. The survey also interprets the limitations that need to be overcome for the accurate determination of wireless channel data. Moreover, the survey analyzed the various performance metrics employed for evaluating the channel estimation performance in the related works. The conventional methods still exhibit implications including latency, channel parameters, pilot contamination, and time-varying channels which need to be improved in further research for acquiring channel information. The study provides good insights for developing advanced and robust modulation techniques for conducting effective channel estimation in wireless systems.

Keywords: Channel estimation, multiple input multiple output, channel state information, pilot signals, orthogonal frequency division multiplexing

[This article belongs to Trends in Opto-electro & Optical Communication ]

How to cite this article:
Sarika Sudhakar Apshankar, Chandani Sharma. Channel Estimated Modulation Techniques for Wireless Communication Systems: Review. Trends in Opto-electro & Optical Communication. 2025; 15(02):1-10.
How to cite this URL:
Sarika Sudhakar Apshankar, Chandani Sharma. Channel Estimated Modulation Techniques for Wireless Communication Systems: Review. Trends in Opto-electro & Optical Communication. 2025; 15(02):1-10. Available from: https://journals.stmjournals.com/toeoc/article=2025/view=215288


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Regular Issue Subscription Review Article
Volume 15
Issue 02
Received 01/04/2025
Accepted 14/04/2025
Published 30/06/2025
Publication Time 90 Days
142

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