A Correlation Receiver to Mitigate Sweep Jammer in Differential Chaos Shift Keying Communication System
DOI:
https://doi.org/10.31272/jeasd.2049Keywords:
Differential chaos shift keying, Frequency hopping, Orthogonal frequency division multiplexing, Sweep jammer, Wavelet packet jammer estimationAbstract
In this paper, a frequency-hopping orthogonal frequency-division multiplexing (FH-OFDM)- based differential chaos shift keying (FH-OFDM-DCSK) system under the effect of a sweep jammer is proposed. The wavelet packet jammer estimation algorithm (WPJE) is employed to enhance system performance by estimating jamming signals and mitigating them. Different wavelet filters and different filter lengths are considered. The threshold value was estimated using the threshold equation to produce an educated estimate of the jammer signal. As a result, we made an estimate as accurate as possible. The simulation results show that the proposed receiver substantially outperforms the standard receiver in system performance. In contrast, the BER performance difference between the presented system and the system without a jammer was 3 dB. The proposed receiver 5 end superscript with the parameters Eb/N0 = 20 dB, JSR = 5 dB, and beta = 100. The best outcomes were achieved by employing Daubechies of length 24 (db12).
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Copyright (c) 2026 Taha Ali Nuhad, Fadhil Sahib Hasan (Author)
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