[KSCI] Korea Science Citation Index Service

http://dx.doi.org/10.7236/IJASC.2020.9.3.141

Performance of Iterative Equalizer for ISI channel

Nguyen, Quoc Kien (Department of Electrical and Information Engineering, Seoul National University of Science and Technology)
Jeon, Taehyun (Department of Electrical and Information Engineering, Seoul National University of Science and Technology)

Publication Information

International journal of advanced smart convergence / v.9, no.3, 2020 , pp. 141-144 More about this Journal

Abstract

Iterative decision feedback equalizer (IDFE) is a recursive equalization technique that can help to achieve an additional performance gain for the system by combining iterative channel decoding and interference cancellation. In a single carrier-based system, the intersymbol interference (ISI) is a critical problem that must be resolved since it causes frequency selective fading. Based on the idea of sharing the estimated information in the process of iteration, IDFE is considered as an efficient solution to improve the robustness of the system performance on the ISI channel. In this paper, the IDFE is applied on single carrier FDMA (SC-FDMA) system to evaluate the performance under ISI channel. The simulation results illustrate that IDFE helps to improve the performance of the SC-FDMA system, especially with long delay spread channels.

Keywords

Equalization; Single carrier; ISI; Soft decision; Error propagation;

Citations & Related Records

Reference

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