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Optimization of Delayed Bit-Interleaved Coded Modulation in the High-SNR Regime 高 SNR 状态下的延迟比特交织编码调制优化
IF 3.7 3区 计算机科学
IEEE Communications Letters Pub Date : 2024-09-20 DOI: 10.1109/LCOMM.2024.3464873
Harindu Jayarathne;Dileepa Marasinghe;Nandana Rajatheva;Matti Latva-Aho
{"title":"Optimization of Delayed Bit-Interleaved Coded Modulation in the High-SNR Regime","authors":"Harindu Jayarathne;Dileepa Marasinghe;Nandana Rajatheva;Matti Latva-Aho","doi":"10.1109/LCOMM.2024.3464873","DOIUrl":"https://doi.org/10.1109/LCOMM.2024.3464873","url":null,"abstract":"In this letter, we investigate the capacity of delay schemes in delayed bit-interleaved coded modulation (DBICM) at high signal-to-noise ratios (SNR) using alternative methods to numerical integration. A closed-form formula is derived to approximate the DBICM capacity at high SNR. For Gray codes, DBICM capacity is proven as asymptotically optimal irrespective of the delay scheme and we further characterize the minute variations in finite SNR values. Compared to BICM using the binary reflected Gray Code, an improvement of 0.1 dB in the BER performance is achieved using a non-Gray bit-labeling combined with its optimized DBICM delay scheme.","PeriodicalId":13197,"journal":{"name":"IEEE Communications Letters","volume":"28 11","pages":"2588-2592"},"PeriodicalIF":3.7,"publicationDate":"2024-09-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://ieeexplore.ieee.org/stamp/stamp.jsp?tp=&arnumber=10684762","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142600287","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"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
Adversarial Samples Detection Based on Feature Attribution and Contrast in Modulation Recognition 调制识别中基于特征归属和对比度的对抗样本检测
IF 3.7 3区 计算机科学
IEEE Communications Letters Pub Date : 2024-09-19 DOI: 10.1109/LCOMM.2024.3463949
Wenyu Wang;Lei Zhu;Yuantao Gu;Yufan Chen;Xingyu Zhou;Lu Yu
{"title":"Adversarial Samples Detection Based on Feature Attribution and Contrast in Modulation Recognition","authors":"Wenyu Wang;Lei Zhu;Yuantao Gu;Yufan Chen;Xingyu Zhou;Lu Yu","doi":"10.1109/LCOMM.2024.3463949","DOIUrl":"https://doi.org/10.1109/LCOMM.2024.3463949","url":null,"abstract":"Detecting adversarial samples is crucial for maintaining the security of automatic modulation recognition (AMR) systems, as adversarial attacks could severely compromise wireless communication. To address this threat, we propose a novel adversarial samples detection method named Null Feature Attribution Abnormality (NFAA), which leverages the target model’s interpretation of feature importance to distinguish between benign and adversarial signal samples. Furthermore, we propose the NFAA-TC method, incorporating a Triple Contrast (TC) approach to mitigate noise in signal data and enhance the performance of adversarial samples detection. Experimental results validate the effectiveness of the proposed method across various adversarial attacks and under different signal-to-noise ratio (SNR) conditions.","PeriodicalId":13197,"journal":{"name":"IEEE Communications Letters","volume":"28 11","pages":"2483-2487"},"PeriodicalIF":3.7,"publicationDate":"2024-09-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142636334","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"计算机科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Coupled Phase-Shift STAR-RIS for Secure MIMO Communication: A DRL-Based Beamforming Design 用于安全 MIMO 通信的耦合相移 STAR-RIS：基于 DRL 的波束成形设计
IF 3.7 3区 计算机科学
IEEE Communications Letters Pub Date : 2024-09-18 DOI: 10.1109/LCOMM.2024.3462798
Zhengyu Zhu;Hongxu Wang;Gangcan Sun;Xingwang Li;Zhengyang Shen;Yuanwei Liu;Jianhua Zhang
{"title":"Coupled Phase-Shift STAR-RIS for Secure MIMO Communication: A DRL-Based Beamforming Design","authors":"Zhengyu Zhu;Hongxu Wang;Gangcan Sun;Xingwang Li;Zhengyang Shen;Yuanwei Liu;Jianhua Zhang","doi":"10.1109/LCOMM.2024.3462798","DOIUrl":"10.1109/LCOMM.2024.3462798","url":null,"abstract":"A simultaneously transmitting and reflecting reconfigurable intelligent surface (STAR-RIS) aided multiple-input multiple-output (MIMO) secure communication system is explored. A practical coupled phase-shift model of STAR-RIS is taken into account for beamforming design. Based on this model, a joint active and passive beamforming optimization problem is formulate to maximize the long-term sum secrecy rate of transmission and reflection users. An efficient deep reinforcement learning (DRL)-based algorithm is proposed to address the multivariate coupling issue in the joint beamforming design problem. Simulation results show that: 1) All STAR-RIS schemes can achieve better secrecy performance gain than the conventional RIS; 2) Compared to the optimal independent phase shifts, couple phase shifts of STAR-RIS only lead to a slight performance loss.","PeriodicalId":13197,"journal":{"name":"IEEE Communications Letters","volume":"28 11","pages":"2488-2492"},"PeriodicalIF":3.7,"publicationDate":"2024-09-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142249427","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"计算机科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
An Effective Network With Discrete Latent Representation Designed for Massive MIMO CSI Feedback 为大规模多输入多输出 CSI 反馈设计的具有离散潜伏表示的有效网络
IF 3.7 3区 计算机科学
IEEE Communications Letters Pub Date : 2024-09-18 DOI: 10.1109/LCOMM.2024.3462977
Xinran Sun;Zhengming Zhang;Chunguo Li;Yongming Huang;Luxi Yang
{"title":"An Effective Network With Discrete Latent Representation Designed for Massive MIMO CSI Feedback","authors":"Xinran Sun;Zhengming Zhang;Chunguo Li;Yongming Huang;Luxi Yang","doi":"10.1109/LCOMM.2024.3462977","DOIUrl":"10.1109/LCOMM.2024.3462977","url":null,"abstract":"The efficacy of massive multiple-input multiple-output techniques heavily relies on the accuracy of the downlink channel state information (CSI) in frequency division duplexing systems. Many works focus on CSI compression and quantization to enhance the CSI reconstruction accuracy with lower overhead of downlink pilots and uplink feedback. In this letter, an advanced network named Conformer is first introduced for CSI compression, which combines self-attention mechanisms and convolution to efficiently extract both global and detailed CSI features. In order to further reduce the feedback overhead, we also propose a vector quantization scheme based on the discrete latent representation of the vector quantised-variational autoencoder (VQ-VAE), namely VQCFB. Integrating Conformer blocks with VQCFB, the proposed encoder-quantizer-decoder framework achieves high-quality CSI reconstruction with low feedback overhead, outperforming previous state-of-the-art networks.","PeriodicalId":13197,"journal":{"name":"IEEE Communications Letters","volume":"28 11","pages":"2648-2652"},"PeriodicalIF":3.7,"publicationDate":"2024-09-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142249429","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"计算机科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Power Allocation for Finite-Blocklength IR-HARQ 有限块长 IR-HARQ 的功率分配
IF 3.7 3区 计算机科学
IEEE Communications Letters Pub Date : 2024-09-17 DOI: 10.1109/LCOMM.2024.3462828
Wenyu Wang;Minhao Zhu;Kaiming Shen;Zhaorui Wang;Shuguang Cui
{"title":"Power Allocation for Finite-Blocklength IR-HARQ","authors":"Wenyu Wang;Minhao Zhu;Kaiming Shen;Zhaorui Wang;Shuguang Cui","doi":"10.1109/LCOMM.2024.3462828","DOIUrl":"10.1109/LCOMM.2024.3462828","url":null,"abstract":"This letter concerns the power allocation across the multiple transmission rounds under the Incremental Redundancy Hybrid Automatic Repeat reQuest (IR-HARQ) policy, in pursuit of an energy-efficient way of fulfilling the outage probability target in the finite-blocklength regime. We start by showing that the optimization objective and the constraints of the above power allocation problem all depend upon the outage probability. The main challenge then lies in the fact that the outage probability cannot be written analytically in terms of the power variables. To sidestep this difficulty, we propose a novel upper bound on the outage probability in the finite-blocklength regime, which is much tighter than the existing ones from the literature. Most importantly, by using this upper bound to approximate the outage probability, we can recast the original intractable power allocation problem into a geometric programming (GP) form—which can be efficiently solved by the standard method.","PeriodicalId":13197,"journal":{"name":"IEEE Communications Letters","volume":"28 11","pages":"2673-2677"},"PeriodicalIF":3.7,"publicationDate":"2024-09-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142249428","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"计算机科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Secure Over-the-Air Computation for Wireless Sensor Network 无线传感器网络的空中安全计算
IF 3.7 3区 计算机科学
IEEE Communications Letters Pub Date : 2024-09-16 DOI: 10.1109/LCOMM.2024.3461793
Boxiang He;Fanggang Wang;Zihan Chen;Guangyang Zhang;Tony Q. S. Quek
{"title":"Secure Over-the-Air Computation for Wireless Sensor Network","authors":"Boxiang He;Fanggang Wang;Zihan Chen;Guangyang Zhang;Tony Q. S. Quek","doi":"10.1109/LCOMM.2024.3461793","DOIUrl":"https://doi.org/10.1109/LCOMM.2024.3461793","url":null,"abstract":"Over-the-air computation (AirComp) has been shown to provide a significantly higher efficiency than the traditional separating communication and computation tasks in the large-scale wireless sensor network. However, the presence of the malicious active eavesdropper in the network poses a severe security threat, as the eavesdropper can not only intercept aggregated information but also interfere with legitimate transmissions. To address the issue, we first derive the closed-form expressions that characterize both the approximation level and the security level of AirComp in the presence of active eavesdropping. Then, we jointly design the power allocation, the sensor selection, the artificial noise, and the receiver filter to minimize the approximation level subject to the required security level and the power budget constraint. Finally, the penalty dual decomposition scheme is proposed to solve the approximation level minimization problem, which is NP-hard due to the integer-programming nature and coupling properties of the optimization variables. Numerical results show that our scheme significantly outperforms the existing method.","PeriodicalId":13197,"journal":{"name":"IEEE Communications Letters","volume":"28 11","pages":"2503-2507"},"PeriodicalIF":3.7,"publicationDate":"2024-09-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142636375","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"计算机科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Dynamic Graph Temporal-Frequency Dual-Channel Network for Multi-Band Spectrum Prediction 用于多频段频谱预测的动态图时频双通道网络
IF 3.7 3区 计算机科学
IEEE Communications Letters Pub Date : 2024-09-12 DOI: 10.1109/LCOMM.2024.3451536
Xing Guo;Yitao Xu;Jiachen Sun;Guoru Ding;Fandi Lin;Yehui Song
{"title":"Dynamic Graph Temporal-Frequency Dual-Channel Network for Multi-Band Spectrum Prediction","authors":"Xing Guo;Yitao Xu;Jiachen Sun;Guoru Ding;Fandi Lin;Yehui Song","doi":"10.1109/LCOMM.2024.3451536","DOIUrl":"10.1109/LCOMM.2024.3451536","url":null,"abstract":"Spectrum prediction is crucial in cognitive radio networks, and previous studies have introduced various spectrum modeling methods. However, these methods typically only capture static patterns from historical spectrum data, overlooking the dynamic nature of the spectrum environment. Therefore, this letter proposes a dynamic graph temporal-frequency dual-channel network (DGTFDN) to capture the time-varying correlations among multiple frequency bands and adaptively update and aggregate features. Additionally, the proposed method employs a dual-channel network to simultaneously model both non-structural and structural features from multiple frequency bands, and then utilizes an adaptive gating mechanism to fuse the two types of features. The experimental results show that the proposed method achieves better prediction results than other comparative methods, with improvements of 0.3638, 0.7828, and 2.7077% in MAE, MRSE, and MAPE respectively.","PeriodicalId":13197,"journal":{"name":"IEEE Communications Letters","volume":"28 12","pages":"2940-2944"},"PeriodicalIF":3.7,"publicationDate":"2024-09-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142190001","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"计算机科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
IEEE Communications Society Information IEEE 通信学会信息
IF 3.7 3区 计算机科学
IEEE Communications Letters Pub Date : 2024-09-11 DOI: 10.1109/LCOMM.2024.3445489
{"title":"IEEE Communications Society Information","authors":"","doi":"10.1109/LCOMM.2024.3445489","DOIUrl":"https://doi.org/10.1109/LCOMM.2024.3445489","url":null,"abstract":"","PeriodicalId":13197,"journal":{"name":"IEEE Communications Letters","volume":"28 9","pages":"C3-C3"},"PeriodicalIF":3.7,"publicationDate":"2024-09-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://ieeexplore.ieee.org/stamp/stamp.jsp?tp=&arnumber=10678780","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142169748","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"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
IEEE Communications Letters Publication Information IEEE Communications Letters 出版信息
IF 3.7 3区 计算机科学
IEEE Communications Letters Pub Date : 2024-09-11 DOI: 10.1109/LCOMM.2024.3445493
{"title":"IEEE Communications Letters Publication Information","authors":"","doi":"10.1109/LCOMM.2024.3445493","DOIUrl":"https://doi.org/10.1109/LCOMM.2024.3445493","url":null,"abstract":"","PeriodicalId":13197,"journal":{"name":"IEEE Communications Letters","volume":"28 9","pages":"C2-C2"},"PeriodicalIF":3.7,"publicationDate":"2024-09-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://ieeexplore.ieee.org/stamp/stamp.jsp?tp=&arnumber=10678777","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142174024","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"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
List-Based Optimization of Proximal Decoding for LDPC Codes 基于列表的 LDPC 代码近端解码优化
IF 3.7 3区 计算机科学
IEEE Communications Letters Pub Date : 2024-09-11 DOI: 10.1109/LCOMM.2024.3458422
Andreas Tsouchlos;Holger Jäkel;Laurent Schmalen
{"title":"List-Based Optimization of Proximal Decoding for LDPC Codes","authors":"Andreas Tsouchlos;Holger Jäkel;Laurent Schmalen","doi":"10.1109/LCOMM.2024.3458422","DOIUrl":"10.1109/LCOMM.2024.3458422","url":null,"abstract":"In this letter, the proximal decoding algorithm is considered within the context of additive white Gaussian noise (AWGN) channels. An analysis of the convergence behavior of the algorithm shows that proximal decoding inherently enters an oscillating behavior of the estimate after a certain number of iterations. Due to this oscillation, frame errors arising during decoding can often be attributed to only a few remaining wrongly decoded bit positions. In this letter, an improvement of the proximal decoding algorithm is proposed by establishing an additional step, in which these erroneous positions are attempted to be corrected. We suggest an empirical rule with which the components most likely needing correction can be determined. Using this insight and performing a subsequent “ML-in-the-list” decoding, a gain of up to 1 dB is achieved compared to conventional proximal decoding, depending on the decoder parameters and the code.","PeriodicalId":13197,"journal":{"name":"IEEE Communications Letters","volume":"28 11","pages":"2464-2467"},"PeriodicalIF":3.7,"publicationDate":"2024-09-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142190002","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"计算机科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
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