基于混沌的开关键控通信系统中增强型非相干检测器的分析建模

IF 2.2 4区 计算机科学 Q3 ENGINEERING, ELECTRICAL & ELECTRONIC
Moundher Messaadi , Rabah Ouchikh , Nacerredine Lassami
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引用次数: 0

摘要

本文将混沌开关键控系统的解调问题转化为二元假设检验,提出了一种鲁棒的非相干解调方案。该方法利用Fisher-Snedecor分布的统计特性来推导一个新的决策变量,简化了解调过程。推导了一个包含中心和非中心Fisher分布的加性高斯白噪声信道的误差概率Pe的解析表达式。此外,提出了一种确定最优决策阈值的新方法,通过显式解析推导最小化Pe。通过蒙特卡罗仿真验证了所提出的解调方法和阈值确定方法的有效性,显示出显著的性能改进。此外,将该方法与目前最先进的基于混沌的通信系统进行了比较,突出了其优越的性能和鲁棒性。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
Analytical modeling of an enhanced non-coherent detector for chaos-based on–off keying communication systems
This paper presents a robust non-coherent demodulation scheme for Chaotic On–Off Keying systems by transforming the demodulation problem into a binary hypothesis test. The proposed approach leverages the statistical properties of the Fisher–Snedecor distribution to derive a novel decision variable, simplifying the demodulation process. An analytical expression for the error probability Pe is derived for an additive white Gaussian noise channel, incorporating both central and non-central Fisher distributions. Furthermore, a new method for determining the optimal decision threshold is introduced, minimizing Pe through an explicit analytical derivation. The effectiveness of the proposed demodulation approach and threshold determination method is validated through Monte Carlo simulations, demonstrating significant performance improvements. Additionally, the proposed method is compared with state-of-the-art chaos-based communication systems, highlighting its superior performance and robustness.
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来源期刊
Physical Communication
Physical Communication ENGINEERING, ELECTRICAL & ELECTRONICTELECO-TELECOMMUNICATIONS
CiteScore
5.00
自引率
9.10%
发文量
212
审稿时长
55 days
期刊介绍: PHYCOM: Physical Communication is an international and archival journal providing complete coverage of all topics of interest to those involved in all aspects of physical layer communications. Theoretical research contributions presenting new techniques, concepts or analyses, applied contributions reporting on experiences and experiments, and tutorials are published. Topics of interest include but are not limited to: Physical layer issues of Wireless Local Area Networks, WiMAX, Wireless Mesh Networks, Sensor and Ad Hoc Networks, PCS Systems; Radio access protocols and algorithms for the physical layer; Spread Spectrum Communications; Channel Modeling; Detection and Estimation; Modulation and Coding; Multiplexing and Carrier Techniques; Broadband Wireless Communications; Wireless Personal Communications; Multi-user Detection; Signal Separation and Interference rejection: Multimedia Communications over Wireless; DSP Applications to Wireless Systems; Experimental and Prototype Results; Multiple Access Techniques; Space-time Processing; Synchronization Techniques; Error Control Techniques; Cryptography; Software Radios; Tracking; Resource Allocation and Inference Management; Multi-rate and Multi-carrier Communications; Cross layer Design and Optimization; Propagation and Channel Characterization; OFDM Systems; MIMO Systems; Ultra-Wideband Communications; Cognitive Radio System Architectures; Platforms and Hardware Implementations for the Support of Cognitive, Radio Systems; Cognitive Radio Resource Management and Dynamic Spectrum Sharing.
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