Lorenz Welter;Roman Sokolovskii;Thomas Heinis;Antonia Wachter-Zeh;Eirik Rosnes;Alexandre Graell i Amat
{"title":"An End-to-End Coding Scheme for DNA-Based Data Storage With Nanopore-Sequenced Reads","authors":"Lorenz Welter;Roman Sokolovskii;Thomas Heinis;Antonia Wachter-Zeh;Eirik Rosnes;Alexandre Graell i Amat","doi":"10.1109/JSAIT.2026.3655592","DOIUrl":"https://doi.org/10.1109/JSAIT.2026.3655592","url":null,"abstract":"We consider error-correcting coding for deoxyribonucleic acid (DNA)-based storage using nanopore sequencing. We model the DNA storage channel as a sampling noise channel where the input data is chunked into <inline-formula> <tex-math>$M$ </tex-math></inline-formula> short DNA strands, which are copied a random number of times, and the channel outputs a random selection of <inline-formula> <tex-math>$N$ </tex-math></inline-formula> noisy DNA strands. The retrieved DNA reads are prone to strand-dependent insertion, deletion, and substitution (IDS) errors. We construct an index-based concatenated coding scheme, i.e., the concatenation of an outer code, an index code, and an inner code. We further propose a low-complexity (linear in <inline-formula> <tex-math>$N$ </tex-math></inline-formula>) maximum a posteriori probability decoder that takes into account the strand-dependent IDS errors and the randomness of the drawing to infer symbolwise a posteriori probabilities for the outer decoder. We present Monte-Carlo simulations for information-outage probabilities and frame error rates for different channel setups on experimental data. We finally evaluate the overall system performance using the read/write cost trade-off. A powerful combination of tailored channel modeling and soft information processing allows us to achieve excellent performance even with error-prone nanopore-sequenced reads outperforming state-of-the-art schemes.","PeriodicalId":73295,"journal":{"name":"IEEE journal on selected areas in information theory","volume":"7 ","pages":"17-32"},"PeriodicalIF":2.2,"publicationDate":"2026-01-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147299526","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Fundamental Limits of Integrated Sensing and Communication Over Interference Channels","authors":"Yao Liu;Min Li;Yanze Han;Lawrence Ong","doi":"10.1109/JSAIT.2026.3652624","DOIUrl":"https://doi.org/10.1109/JSAIT.2026.3652624","url":null,"abstract":"This paper focuses on integrated sensing and communication (ISAC) over interference channels. An information-theoretic modeling, where two interfering ISAC base stations (BSs) seek to communicate with their users while performing sensing estimation through received echo signals, is proposed. For the model considered, we establish both inner and outer bounds for the capacity-distortion region, with capacity and sensing distortion as the key performance metrics for communication and sensing, respectively. As for the inner bound, an achievable scheme utilizing superposition coding and joint compression of past transmitted codewords and echo signals is developed, and the corresponding achievable rate-distortion region is derived. The proposed outer bound is based on the ideas of cut-set bound on communication rate and rate-limited constraints on sensing distortion. Several numerical examples are constructed to illustrate the advantages of our proposed scheme. Our results highlight that interference links, in conjunction with echo signals, can be strategically leveraged to achieve unified cooperative sensing and communication between the two BS-user pairs.","PeriodicalId":73295,"journal":{"name":"IEEE journal on selected areas in information theory","volume":"7 ","pages":"1-15"},"PeriodicalIF":2.2,"publicationDate":"2026-01-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"146162236","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"2025 Index Journal on Selected Areas in Information Theory","authors":"","doi":"10.1109/JSAIT.2026.3652821","DOIUrl":"https://doi.org/10.1109/JSAIT.2026.3652821","url":null,"abstract":"","PeriodicalId":73295,"journal":{"name":"IEEE journal on selected areas in information theory","volume":"6 ","pages":"470-478"},"PeriodicalIF":2.2,"publicationDate":"2026-01-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://ieeexplore.ieee.org/stamp/stamp.jsp?tp=&arnumber=11344831","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145929578","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Joint Communication and Parameter Estimation in MIMO Channels","authors":"Gökhan Yılmaz;Franz Lampel;Hamdi Joudeh;Giuseppe Caire","doi":"10.1109/JSAIT.2026.3675819","DOIUrl":"https://doi.org/10.1109/JSAIT.2026.3675819","url":null,"abstract":"We study a joint communication and sensing setting comprising a transmitter, a receiver, and a sensor, all equipped with multiple antennas. The transmitter sends an encoded signal over the channel with the dual purpose of communicating an information message to the receiver, and enabling the sensor to estimate a target parameter vector by generating back-scattered signals. We assume that the transmitter and sensor are co-located, or fully connected, giving the latter access to the transmitted signal. The target parameter vector is randomly drawn from a continuous distribution, yet remains fixed throughout the transmission block. We establish the fundamental performance trade-off between the communication and sensing tasks, captured in terms of a capacity-MSE function. In doing so, we identify optimal coding schemes for this multi-antenna joint communication and sensing setting. Moreover, we particularize our result to two practically-inspired scenarios where we showcase optimal schemes and trade-offs.","PeriodicalId":73295,"journal":{"name":"IEEE journal on selected areas in information theory","volume":"7 ","pages":"91-105"},"PeriodicalIF":2.2,"publicationDate":"2026-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147665229","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Hyeonjin Chung;Hanvit Kim;Sunwoo Kim;Andrea Conti;Moe Z. Win
{"title":"Efficient Near-Field Channel Feature Estimation: Criteria and Algorithms","authors":"Hyeonjin Chung;Hanvit Kim;Sunwoo Kim;Andrea Conti;Moe Z. Win","doi":"10.1109/JSAIT.2025.3649807","DOIUrl":"https://doi.org/10.1109/JSAIT.2025.3649807","url":null,"abstract":"When the radio signal propagates in the near-field (NF), the distance can be estimated by the curvature of the wavefront. This brings new opportunities for sensing and communication, but a computational burden as well. This paper first establishes a theoretical foundation for computationally efficient NF feature (i.e., angle-of-arrival (AOA) and distance) estimation. We reveal that the computation of feature estimates can be reduced without sacrificing the estimation accuracy, if the distance between the receiver and transmitter (or scatterer) exceeds approximately one quarter of the Rayleigh distance. Based on this criterion, we introduce a zone-wise search-based algorithm that reduces computation by restricting the high-dimensional (HD) search to the angle-distance search space where the criterion is not met. In the other search space, sequential low-dimensional (LD) searches are carried out. Along with the algorithm, the estimation-theoretic analysis for NF feature estimation is provided to present the theoretical performance limit. The simulation results demonstrate that even under severe NF effect, the accuracy of the proposed algorithm reaches that of the HD search-based algorithm, which represents a realistically achievable upper bound. Nevertheless, the computation complexity of the proposed algorithm is significantly lower than the HD search-based algorithm.","PeriodicalId":73295,"journal":{"name":"IEEE journal on selected areas in information theory","volume":"7 ","pages":"75-90"},"PeriodicalIF":2.2,"publicationDate":"2026-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147665231","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Secure Semantic Communication Over Wiretap Channels: Rate-Distortion-Equivocation Tradeoff","authors":"Denis Kozlov;Mahtab Mirmohseni;Rahim Tafazolli","doi":"10.1109/JSAIT.2026.3676713","DOIUrl":"https://doi.org/10.1109/JSAIT.2026.3676713","url":null,"abstract":"This paper investigates an information-theoretic model of secure semantic-aware communication. For this purpose, we consider the lossy joint source-channel coding (JSCC) of a memoryless semantic source transmitted over a memoryless wiretap channel. The source consists of two correlated parts that represent semantic and observed aspects of the information. Our model assumes separate fidelity and secrecy constraints on each source component and, in addition, encompasses two cases for the source output, in order to evaluate the performance gains if the encoder has an extended access to the source. Specifically, in Case 1, the encoder has direct access only to the samples from a single (observed) source component, while in Case 2 it has additional direct access to the samples of the underlaying semantic information. We derive single-letter converse and achievability bounds on the rate-distortion-equivocation region. The converse bound explicitly contains rate-distortion functions, making it easy to evaluate, especially for some common distributions. The proposed achievability coding scheme involves novel stochastic superposition coding with two private parts to enable analysis of the equivocation for each source component, separately. Our results generalise some of the previously established source and source-channel coding problems. The general results are further specialised to Gaussian and Bernoulli sources transmitted over Gaussian and binary wiretap channels, respectively. The numerical evaluations illustrate the derived bounds for these distributions.","PeriodicalId":73295,"journal":{"name":"IEEE journal on selected areas in information theory","volume":"7 ","pages":"120-133"},"PeriodicalIF":2.2,"publicationDate":"2026-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147796120","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Merve Karakas;Osama Hanna;Lin F. Yang;Christina Fragouli
{"title":"Fundamental Limits of Learning Under Erasure-Constrained Communication Channels","authors":"Merve Karakas;Osama Hanna;Lin F. Yang;Christina Fragouli","doi":"10.1109/JSAIT.2026.3677413","DOIUrl":"https://doi.org/10.1109/JSAIT.2026.3677413","url":null,"abstract":"We study online learning over unreliable downlink channels with erasure feedback: after each attempted arm transmission, the learner is told if delivery succeeded. Focusing on both single- and multi-agent bandits, we ask whether such feedback alters fundamental regret limits and how it interacts with communication and energy efficiency. We show that erasure feedback does not improve the worst-case regret order—matching lower and upper bounds establish the same information-theoretic scaling. Yet, feedback enables simpler and more efficient policies. We introduce a feedback-driven multi-agent scheduler with stop-on-success delivery and dynamic takeover, achieving near-optimal regret while substantially reducing expected transmissions and total energy. We formalize energy- and data-efficiency metrics, including an energy–regret tradeoff, and empirically demonstrate significant constant-factor savings in high-erasure regimes.","PeriodicalId":73295,"journal":{"name":"IEEE journal on selected areas in information theory","volume":"7 ","pages":"134-145"},"PeriodicalIF":2.2,"publicationDate":"2026-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147737020","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Mehdi Karbalayghareh;David J. Love;Christopher G. Brinton
{"title":"Coherence-Aware Over-the-Air Distributed Learning Under Heterogeneous Link Impairments","authors":"Mehdi Karbalayghareh;David J. Love;Christopher G. Brinton","doi":"10.1109/JSAIT.2026.3672794","DOIUrl":"https://doi.org/10.1109/JSAIT.2026.3672794","url":null,"abstract":"Distributed machine learning (ML) over wireless networks hinges on accurate channel state information (CSI) and efficient exchange of high-dimensional model updates. These demands are governed by channel coherence time and bandwidth, which vary across devices (links) due to heterogeneous mobility and scattering, causing degraded downlink delivery and distorted uplink over-the-air (OTA) aggregation. We propose a coherence-aware federated learning (FL) framework that jointly addresses impairments on downlink and uplink with communication-efficient strategies. In the downlink, we employ product superposition to multiplex global model symbols for long-coherence (static) devices onto the pilot tones required by short-coherence (dynamic) devices for channel estimation, turning pilot overhead into payload while preserving estimation fidelity. In the proposed scheme, an orthogonal frequency-division multiplexing (OFDM) super-block is partitioned into sub-blocks aligned with the smallest coherence time and bandwidth, enabling consistent channel estimation and stabilizing OTA aggregation across heterogeneous devices. Partial model reception at dynamic devices is mitigated via previous local model filling (PLMF), which reuses prior updates. We establish convergence guarantees under heterogeneous link impairments, imperfect CSI, and aggregation noise. The proposed framework enables efficient scheduling under coherence heterogeneity; analysis and experiments demonstrate notable gains in communication efficiency, latency, and learning accuracy over conventional FL baselines.","PeriodicalId":73295,"journal":{"name":"IEEE journal on selected areas in information theory","volume":"7 ","pages":"46-61"},"PeriodicalIF":2.2,"publicationDate":"2026-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147557852","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"On Gaussian Codes and Mismatched Decoding for Fading MIMO Multiple-Access Channels","authors":"Mehrangiz Ensan;Hamdi Joudeh;Frans M. J. Willems","doi":"10.1109/JSAIT.2026.3675858","DOIUrl":"https://doi.org/10.1109/JSAIT.2026.3675858","url":null,"abstract":"We consider a multiple-access channel with single-antenna users and a multi-antenna access point under imperfect channel state information. We derive an achievable rate region under Gaussian codebooks and a mismatched decoder that treats the signal-dependent noise from channel imperfection as additional Gaussian noise. We further show that the rate tuples in this region are also achieved using a lower-complexity scheme based on linear combining and mismatched single-user decoding with successive interference cancellation. We then specialize the results to a block-fading setting with pilot-assisted channel estimation and derive analytical bounds on the sum-rate gap between matched and mismatched decoding. We show that this gap is typically small in practically relevant scenarios.","PeriodicalId":73295,"journal":{"name":"IEEE journal on selected areas in information theory","volume":"7 ","pages":"106-119"},"PeriodicalIF":2.2,"publicationDate":"2026-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147737056","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Array Configuration and Scaling Laws in Near-Field Uplink Multiuser MIMO","authors":"Jiyoung Yun;Wan Choi;Jeffrey G. Andrews","doi":"10.1109/JSAIT.2026.3674909","DOIUrl":"https://doi.org/10.1109/JSAIT.2026.3674909","url":null,"abstract":"Future wireless networks must deliver high spectral efficiency in dense environments where many users require simultaneous high-rate communication. Higher carrier frequencies offer more bandwidth but suffer from shorter range and lower channel rank, making new capacity enhancing strategies essential. This paper studies joint antenna array design at the base station (BS) and user devices in line-of-sight (LoS) uplink multiuser multiple-input multiple-output (MU-MIMO) systems with the goal of exploiting radiative near-field effects to unlock full multiplexing gains. In particular, we establish a scaling law under which there exist uniform sparse array configurations whose sum rate gap to an interference-free upper bound decays with the number of BS antennas. For dense user deployments beyond this scaling regime, we propose a joint array design algorithm with provable performance guarantees, in which each user array is configured to maximize its single-user achievable rate conditioned on the BS array, followed by non-uniform BS array optimization using a submodular surrogate. Our simulation results verify that uniform sparse arrays achieve the interference-free regime predicted by the scaling law. Outside this regime, the proposed joint design closely tracks the interference-free upper bound, demonstrating the benefit of non-uniform BS array optimization.","PeriodicalId":73295,"journal":{"name":"IEEE journal on selected areas in information theory","volume":"7 ","pages":"62-74"},"PeriodicalIF":2.2,"publicationDate":"2026-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147557873","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}