{"title":"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","authors":"Moundher Messaadi , Rabah Ouchikh , Nacerredine Lassami","doi":"10.1016/j.phycom.2025.102830","DOIUrl":null,"url":null,"abstract":"<div><div>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 <span><math><msub><mrow><mi>P</mi></mrow><mrow><mi>e</mi></mrow></msub></math></span> 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 <span><math><msub><mrow><mi>P</mi></mrow><mrow><mi>e</mi></mrow></msub></math></span> 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.</div></div>","PeriodicalId":48707,"journal":{"name":"Physical Communication","volume":"73 ","pages":"Article 102830"},"PeriodicalIF":2.2000,"publicationDate":"2025-09-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":"{\"title\":\"Analytical modeling of an enhanced non-coherent detector for chaos-based on–off keying communication systems\",\"authors\":\"Moundher Messaadi , Rabah Ouchikh , Nacerredine Lassami\",\"doi\":\"10.1016/j.phycom.2025.102830\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"<div><div>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 <span><math><msub><mrow><mi>P</mi></mrow><mrow><mi>e</mi></mrow></msub></math></span> 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 <span><math><msub><mrow><mi>P</mi></mrow><mrow><mi>e</mi></mrow></msub></math></span> 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.</div></div>\",\"PeriodicalId\":48707,\"journal\":{\"name\":\"Physical Communication\",\"volume\":\"73 \",\"pages\":\"Article 102830\"},\"PeriodicalIF\":2.2000,\"publicationDate\":\"2025-09-08\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"\",\"citationCount\":\"0\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"Physical Communication\",\"FirstCategoryId\":\"94\",\"ListUrlMain\":\"https://www.sciencedirect.com/science/article/pii/S1874490725002332\",\"RegionNum\":4,\"RegionCategory\":\"计算机科学\",\"ArticlePicture\":[],\"TitleCN\":null,\"AbstractTextCN\":null,\"PMCID\":null,\"EPubDate\":\"\",\"PubModel\":\"\",\"JCR\":\"Q3\",\"JCRName\":\"ENGINEERING, ELECTRICAL & ELECTRONIC\",\"Score\":null,\"Total\":0}","platform":"Semanticscholar","paperid":null,"PeriodicalName":"Physical Communication","FirstCategoryId":"94","ListUrlMain":"https://www.sciencedirect.com/science/article/pii/S1874490725002332","RegionNum":4,"RegionCategory":"计算机科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q3","JCRName":"ENGINEERING, ELECTRICAL & ELECTRONIC","Score":null,"Total":0}
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 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 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.
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.