IET Communications最新文献

Separating Noisy TCP/IP Session Flows Based on Natural Redundancy Decoding

IF 1.5 4区计算机科学

IET Communications Pub Date : 2025-04-03 DOI: 10.1049/cmu2.70027

Guoxian Yu, Xiaomin Ran, Hongyi Yu, Zhixiang Shen

{"title":"Separating Noisy TCP/IP Session Flows Based on Natural Redundancy Decoding","authors":"Guoxian Yu, Xiaomin Ran, Hongyi Yu, Zhixiang Shen","doi":"10.1049/cmu2.70027","DOIUrl":"https://doi.org/10.1049/cmu2.70027","url":null,"abstract":"Aiming at the technical challenges of low latency and high reliability in the complex communication environment of the intelligent industrial network, and the trend of the current Internet of Things architecture is increasingly IP-based, this paper proposes a fast and accurate IP packet forwarding method applied to the routing node, aiming at dealing with the header control packet error problem under high bit error conditions. This method breaks through the limitations of traditional retransmission mechanism and artificially adding redundant information, and only uses the natural redundant characteristics of the protocol itself to realize the correct separation of the session flow in high error environment. The test results on the public data set show that the proposed method can complete the separation of the session stream with a probability of not less than 99% at the bit error rate of <math>\u0000 <semantics>\u0000 <mrow>\u0000 <mi>1</mi>\u0000 <msup>\u0000 <mi>0</mi>\u0000 <mtext>-1</mtext>\u0000 </msup>\u0000 </mrow>\u0000 <annotation>$text{1}{{text{0}}^{text{-1}}}$</annotation>\u0000 </semantics></math> by sacrificing part of the complexity, which provides a new idea and technical means for the fault-tolerant receiving processing of the header five-tuple field in complex communication environments.","PeriodicalId":55001,"journal":{"name":"IET Communications","volume":"19 1","pages":""},"PeriodicalIF":1.5,"publicationDate":"2025-04-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1049/cmu2.70027","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143770407","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"计算机科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Generalized Symbol Sequence Modulation

IF 1.5 4区计算机科学

IET Communications Pub Date : 2025-04-02 DOI: 10.1049/cmu2.70032

Abdulrahman Faris, Peter Akuon, Vitalice Oduol Kalecha

引用次数: 0

Optimizing Intrusion Detection in Wireless Sensor Networks via the Improved Chameleon Swarm Algorithm for Feature Selection

IF 1.5 4区计算机科学

IET Communications Pub Date : 2025-03-28 DOI: 10.1049/cmu2.70029

Laith Abualigah, Mohammad H. Almomani, Saleh Ali Alomari, Raed Abu Zitar, Hazem Migdady, Kashif Saleem, Vaclav Snasel, Aseel Smerat, Absalom E. Ezugwu

{"title":"Optimizing Intrusion Detection in Wireless Sensor Networks via the Improved Chameleon Swarm Algorithm for Feature Selection","authors":"Laith Abualigah, Mohammad H. Almomani, Saleh Ali Alomari, Raed Abu Zitar, Hazem Migdady, Kashif Saleem, Vaclav Snasel, Aseel Smerat, Absalom E. Ezugwu","doi":"10.1049/cmu2.70029","DOIUrl":"https://doi.org/10.1049/cmu2.70029","url":null,"abstract":"In this paper, the improved chameleon swarm algorithm (ICSA) enhances the exploration–exploitation balance while optimizing feature subset selection. The integration of Lévy flight-based exploration refines ICSA's search strategy, complemented by rotation-type refinement and adaptive parameter-setting mechanisms. These modifications ensure that exploration aligns effectively with the feature selection process, leading to a more adaptive and efficient approach. To evaluate ICSA's effectiveness, it is tested on the NSL-KDD benchmark, a well-established dataset in intrusion detection systems. Performance is assessed based on key metrics, including accuracy, detection rate, false alarm rate, execution time, and the number of selected features. Comparative analysis against six advanced classifiers demonstrates that ICSA achieves superior results with minimal computational overhead. The algorithm attains the highest accuracy (97.91%) and detection rate (98.75%), the fastest execution time, and the lowest false alarm rate (0.0021), eliminating the need for excessive feature selection. These results confirm that modifying feature selection mechanisms within ICSA significantly enhances computational efficiency and detection performance, as validated through rigorous experimental testing at the classifier level.","PeriodicalId":55001,"journal":{"name":"IET Communications","volume":"19 1","pages":""},"PeriodicalIF":1.5,"publicationDate":"2025-03-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1049/cmu2.70029","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143717141","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"计算机科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Network Performance Assessment via Length-Bounded Paths in Continuous Domain

IF 1.5 4区计算机科学

IET Communications Pub Date : 2025-03-28 DOI: 10.1049/cmu2.70028

Raed Alharbi, Lan N. Nguyen, My T. Thai

{"title":"Network Performance Assessment via Length-Bounded Paths in Continuous Domain","authors":"Raed Alharbi, Lan N. Nguyen, My T. Thai","doi":"10.1049/cmu2.70028","DOIUrl":"https://doi.org/10.1049/cmu2.70028","url":null,"abstract":"Studying on networked systems, in which a communication between nodes is functional if their distance under a given metric is lower than a pre-defined threshold, has received significant attention recently. In this work, we propose a metric to measure network resilience on guaranteeing the pre-defined performance constraint. This metric is investigated under an optimization problem, namely length-bounded paths interdiction in continuous domain (cLPI), which aims to identify a minimum set of nodes whose changes cause routing paths between nodes become undesirable for the network service. We show the problem is NP-hard and propose a framework by designing two oracles, threshold blocking (TB) and critical path listing (CPL), which communicate back and forth to construct a feasible solution to cLPI with theoretical bicriteria approximation guarantees. Based on this framework, we propose two solutions for each oracle. Each combination of one solution to TB and one solution to CPL gives us a solution to cLPI . The bicriteria guarantee of our algorithms allows us to control the solutions' trade-off between the returned size and the performance accuracy. New insights into the advantages of each solution are further discussed via experimental analysis.","PeriodicalId":55001,"journal":{"name":"IET Communications","volume":"19 1","pages":""},"PeriodicalIF":1.5,"publicationDate":"2025-03-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1049/cmu2.70028","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143717140","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"计算机科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Shot Noise Optimal Receiver Filters for Coherent and Non-Coherent Fibre Optic Communications 相干和非相干光纤通信的射出噪声优化接收器滤波器

IF 1.5 4区计算机科学

IET Communications Pub Date : 2025-03-20 DOI: 10.1049/cmu2.70026

Amir R. Forouzan, Mohammad Sheikhbahaei

{"title":"Shot Noise Optimal Receiver Filters for Coherent and Non-Coherent Fibre Optic Communications","authors":"Amir R. Forouzan, Mohammad Sheikhbahaei","doi":"10.1049/cmu2.70026","DOIUrl":"https://doi.org/10.1049/cmu2.70026","url":null,"abstract":"In this paper, we investigate optimal receiver filter design with respect to shot noise in both non-coherent and coherent fibre optic communication systems. We derive analytical expressions for the moment-generating function of filter output and the signal-to-shot noise power ratio (SSNR) for intensity modulation direct detection (IM/DD) and phase diversity homodyne (PDH) optical fibre communication systems, with arbitrary waveform and receiver filter considerations in the presence of shot noise. Closed-form formulas are provided for the receiver filter structures that maximise the SSNR. The performance of SSNR is evaluated using return-to-zero (RZ) coding with rectangular and Gaussian pulse shapes across various receiver filter structures, including the ideal integrator, the RC model, and the matched filter. Our results indicate that the integrator, or its variations, is either optimal or near-optimal for diverse IM/DD systems. However, matched filtering to the received pulse power becomes superior when dark current or d.c. bias power is prominent. For coherent PDH systems, matched filtering to the complex received pulse amplitude approaches near-optimal performance provided the local oscillator (LO) power significantly exceeds the received signal power. When the LO power is much greater than the signal power, such systems can achieve double the SSNR of IM/DD systems, equivalent to twice the number of converted photoelectrons per symbol, thus nearing the quantum-limit performance considering the photodetector quantum efficiency.","PeriodicalId":55001,"journal":{"name":"IET Communications","volume":"19 1","pages":""},"PeriodicalIF":1.5,"publicationDate":"2025-03-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1049/cmu2.70026","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143689257","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"计算机科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Cooperative Beamforming Design for Multi-BS Integrated Sensing and Communication Systems

IF 1.5 4区计算机科学

IET Communications Pub Date : 2025-03-18 DOI: 10.1049/cmu2.70015

Peng Wang, Dongsheng Han, Xi Song

{"title":"Cooperative Beamforming Design for Multi-BS Integrated Sensing and Communication Systems","authors":"Peng Wang, Dongsheng Han, Xi Song","doi":"10.1049/cmu2.70015","DOIUrl":"https://doi.org/10.1049/cmu2.70015","url":null,"abstract":"Integrated sensing and communication (ISAC) is regarded as a promising paradigm for future sixth-generation (6G) networks, which effectively improves spectral efficiency and reduces hardware costs by simultaneously performing communication and sensing. Due to the limited coverage of a single base station (BS), the single-BS ISAC system struggles to meet the demands of various emerging intelligent applications for high-quality communication and high-precision sensing. In this paper, we investigate a cooperative multi-BS ISAC system with multi-target and multi-user. In particular, communication and sensing are performed by multiple BSs with a cooperative manner. We formulate a problem for the purpose of maximizing the sensing mutual information (MI) via jointly designing the transmit beamforming of multiple BSs for communication and sensing, while guaranteeing the achievable communication rate requirements. To address this non-convex problem, an iterative optimization algorithm is developed based on the Lagrangian transform and the quadratic fractional transform. Simulation results validate the advancement of the proposed cooperative beamforming scheme in enhancing the sensing performance of multi-BS ISAC system.","PeriodicalId":55001,"journal":{"name":"IET Communications","volume":"19 1","pages":""},"PeriodicalIF":1.5,"publicationDate":"2025-03-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1049/cmu2.70015","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143646170","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"计算机科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Automatic Modulation Classification via Recurrent Self-Attention with Weight Non-Negative Constraint

IF 1.5 4区计算机科学

IET Communications Pub Date : 2025-03-18 DOI: 10.1049/cmu2.70025

Shilong Zhang, Yu Song, Shubin Wang

{"title":"Automatic Modulation Classification via Recurrent Self-Attention with Weight Non-Negative Constraint","authors":"Shilong Zhang, Yu Song, Shubin Wang","doi":"10.1049/cmu2.70025","DOIUrl":"https://doi.org/10.1049/cmu2.70025","url":null,"abstract":"The rapid development of the Internet of Things (IoT) has led to an increasingly prominent issue of spectrum resource scarcity. To effectively address this shortage, automatic modulation classification (AMC) has emerged as one of the critical factors. Most existing deep learning-based AMC methods rely on supervised attention models. However, these approaches have not fully accounted for the inherent characteristics of modulation signals and feature sparsity. In response, this paper proposes a weight non-negative constraint recurrent self-attention (WNRSA) model. This model incorporates a recurrent attention module (RAM) within an autoencoder architecture, creating a recurrent self-attention extraction mechanism that enhances multi-dimensional feature representations. RAM comprises three types of attention modules: spatial, frequency, and temporal. The point attention model (PAM) extracts local spatial information to emphasize critical regions in the image. The frequency attention model (FAM) captures salient features at different scales in the frequency domain, reducing noise sensitivity to details and high-frequency information. The time attention model (TAM) captures temporal information, strengthening the ability to extract dynamic features. Additionally, we introduce weight non-negative constraint and KL-divergence regularization term to optimize the WNRSA model's loss function, achieving sparser feature representations and reducing sensitivity to noise. Experimental results demonstrate that the WNRSA model achieves superior performance across various signal-to-noise ratio (SNR) levels.","PeriodicalId":55001,"journal":{"name":"IET Communications","volume":"19 1","pages":""},"PeriodicalIF":1.5,"publicationDate":"2025-03-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1049/cmu2.70025","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143639300","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"计算机科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Detection Strategies for MIMO-GFDM-IM System

IF 1.5 4区计算机科学

IET Communications Pub Date : 2025-03-17 DOI: 10.1049/cmu2.70016

José Luis Calpa Juajinoy, João Cal-Braz, Raimundo Sampaio-Neto

{"title":"Detection Strategies for MIMO-GFDM-IM System","authors":"José Luis Calpa Juajinoy, João Cal-Braz, Raimundo Sampaio-Neto","doi":"10.1049/cmu2.70016","DOIUrl":"https://doi.org/10.1049/cmu2.70016","url":null,"abstract":"This paper is dedicated to the study of the multiple-input multiple-output generalized frequency division multiplexing with index modulation (MIMO-GFDM-IM) wireless communication system. This system garners significant interest for future communications technologies due to its notable features, such as high spectral efficiency, energy efficiency, and robustness against multipath propagation channels. Preceding the study of the system, the model of signals and systems for MIMO-GFDM is developed based on the MIMO orthogonal frequency division multiplexing model and detection strategies for the system are presented. A new proposal for MIMO-GFDM detection, based on two filtering phases, is presented, resulting in an attractive tradeoff between detection performance and computational complexity. The presented system model is then extended to include index modulation as an information carrier, resulting in the MIMO-GFDM-IM system. Different proposals for detectors based on processing the complete channel matrix and also for detectors of reduced complexity are evaluated, from the perspective of detection performance and computational complexity.","PeriodicalId":55001,"journal":{"name":"IET Communications","volume":"19 1","pages":""},"PeriodicalIF":1.5,"publicationDate":"2025-03-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1049/cmu2.70016","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143632794","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"计算机科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Performance Analysis of RIS-Assisted Relay Systems

IF 1.5 4区计算机科学

IET Communications Pub Date : 2025-03-12 DOI: 10.1049/cmu2.70023

Guoqing Dong, Zhen Yang, Youhong Feng, Bin Lyu

{"title":"Performance Analysis of RIS-Assisted Relay Systems","authors":"Guoqing Dong, Zhen Yang, Youhong Feng, Bin Lyu","doi":"10.1049/cmu2.70023","DOIUrl":"https://doi.org/10.1049/cmu2.70023","url":null,"abstract":"Reconfigurable intelligent surface (RIS) is an emerging technology that can enhance service coverage and spectral efficiency in sixth-generation wireless networks. In contrast, relays are a traditional technique for achieving coverage extension. To explore potential benefits, we investigate three probable RIS-relay cascaded scenarios over Nakagami-<math>\u0000 <semantics>\u0000 <mi>m</mi>\u0000 <annotation>$emph {m}$</annotation>\u0000 </semantics></math> fading channels, where the full-duplex relay is utilized for ensuring spectral efficiency. To evaluate the performance across different scenarios, we first derive their closed-form expressions for the outage probability. Next, we determine the respective diversity order using asymptotic approximations in the high signal-to-noise-ratio regime. Finally, we present the system throughput in delay-limited transmission. Simulation results validate our analysis and demonstrate significant performance differences among various cascaded configurations, with the multi-RIS-assisted relay scenario achieving the best performance. Furthermore, the considered RIS-decode-and-forward relay schemes outperform the corresponding RIS-amplify-and-forward relay schemes in the low-SNR regime.","PeriodicalId":55001,"journal":{"name":"IET Communications","volume":"19 1","pages":""},"PeriodicalIF":1.5,"publicationDate":"2025-03-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1049/cmu2.70023","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143595425","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"计算机科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Robust Multicast Beamforming for Jittering UAV: A Secrecy Energy Efficiency Perspective

IF 1.5 4区计算机科学

IET Communications Pub Date : 2025-03-11 DOI: 10.1049/cmu2.70022

Jian Ouyang, Jing Ding, Chengyang Liu, Xiaoyu Liu, Min Lin

{"title":"Robust Multicast Beamforming for Jittering UAV: A Secrecy Energy Efficiency Perspective","authors":"Jian Ouyang, Jing Ding, Chengyang Liu, Xiaoyu Liu, Min Lin","doi":"10.1049/cmu2.70022","DOIUrl":"https://doi.org/10.1049/cmu2.70022","url":null,"abstract":"In this paper, we investigate an unmanned aerial vehicle (UAV) enabled secure multicast communication system, where a UAV serves multiple legitimate ground users in the presence of multiple coordinated eavesdroppers. Taking into account the inherent jittering characteristics of UAVs caused by the airflow, we aim to maximise the worst-case secrecy energy efficiency (SEE) under a constrained UAV transmission power budget. The formulated optimization problem is inherently non-convex and challenging to solve due to the combined effects of jittering uncertainties and the max–min fractional structure of the SEE metric. To address these challenges, we first simplify the original SEE maximization problem by introducing auxiliary variables. Next, considering the impact of jittering on the antenna array response, we develop a novel second-order Taylor series expansion-based approach to approximate beamforming gains as quadratic functions of the angle-of-departure errors, which can be subsequently transformed into deterministic convex constraints by using S-Procedure. Based on these theoretical results, we design an iterative algorithm that combines the penalty function method with the successive convex approximation to efficiently obtain a suboptimal solution. Finally, the simulation results demonstrate the effectiveness and superiority of the proposed scheme compared to several benchmark schemes, highlighting its potential for practical implementation in UAV-enabled secure multicast communication systems.","PeriodicalId":55001,"journal":{"name":"IET Communications","volume":"19 1","pages":""},"PeriodicalIF":1.5,"publicationDate":"2025-03-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1049/cmu2.70022","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143594938","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"计算机科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0