Journal Article10.4304/JNW.6.5.783-790
Blind Channel Estimation with Lower Complexity Algorithm for OFDM System
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TL;DR: A novel One-Cycle blind channel estimation algorithm based on cyclostationarity properties of OFDM signal is proposed in this paper, the new algorithm is formed from using the two related z-transform values of delay parameter.
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Abstract: Fast and reliable channel estimation is very important for wireless communication transmission. This paper addresses blind channel estimation for OFDM systems. A novel One-Cycle blind channel estimation algorithm based on cyclostationarity properties of OFDM signal is proposed in this paper, the new algorithm is formed from using the two related z-transform values of delay parameter . Furthermore, a lower complexity algorithm based on partial spectrum information can further reduce computational complexity. Computer simulation results verify that the performance of the proposed One-Cycle algorithm is superior to that of the Two-Cycle algorithm. Although the lower complexity One-Cycle algorithm has some performance loss in high SNR region, its computational complexity is dramatically reduced
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Citations
Subspace Blind Channel Estimation Methods in OFDM Systems under Multi-path Channels
Osamah Al-Qadhi,Laith A. Abdul-Rahaim,Deeksha G. Rao Sahib,Ali Hamzah Obaid,Falah Alwan +4 more
- 02 Jan 2024
TL;DR: Subspace blind channel estimation methods outperform conventional methods in OFDM systems under multi-path channels, particularly the zero padding (ZP) model.
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TL;DR: In this article, a detailed introduction to the analysis and design of multiple-input multiple-output (MIMO) wireless systems is presented, and the fundamental capacity limits of MIMO systems are examined.
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TL;DR: A new blind identification algorithm based solely on the system outputs is proposed and necessary and sufficient identifiability conditions in terms of the multichannel systems and the deterministic input signal are presented.
Pilot-Assisted Time-Varying Channel Estimation for OFDM Systems
TL;DR: This paper proposes novel channel estimators to combat both the noise and the out-of-band interference in orthogonal frequency-division multiplexing (OFDM) systems.
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A new approach to blind identification and equalization of multipath channels
Lang Tong,G. Xu,Thomas Kailath +2 more
- 04 Nov 1991
TL;DR: A novel blind channel identification and equalization method is proposed by exploiting the cyclostationarity of communication signals and achieves equalization with fewer samples than most techniques based on higher-order statistics.
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