19 papers · ranked by Valyu relevance
Qi Feng, Junyi Zhang, Mingdi Li, Li Chen + 1 more
Classical covert wireless communication is commonly formulated under a noise-only null hypothesis, in which a warden detects the presence of a transmission. In shared-spectrum settings with persistent legitimate traffic, however, a warden may already observe legitimate traffic and may therefore test whether an…
Wafa Labidi, Kumar Nilesh, Johannes Rosenberger, Juan Cabrera + 4 more
Identification (ID) coding, introduced by Ahlswede and Dueck, extends Shannon's classical communication paradigm by replacing message reconstruction with hypothesis testing. Instead of decoding the transmitted message, the receiver only decides whether a particular message was sent. A fundamental result of ID theory is…
Rna Ghallab, Mohamed Shaheen, Ahmed S. Elkorany, Somaya A. El-Feshawy
Smart Grids rely on robust communication infrastructures to monitor, control, and stabilize information in real time across geographically distributed energy resources. Trellis Coded Modulation (TCM) is a well-established technique for improving spectral efficiency and reliability, particularly in bandwidth-constrained…
Wang, Lingyi, Rashed Shelim, Walid Saad + 1 more
—The use of a learnable codebook provides an efficient way for semantic communications to map vectorbased high-dimensional semantic features onto discrete symbol representations required in digital communication systems. In this paper, the problem of codebook-enabled quantization mapping for digital semantic…
Jiangang Hao, Wenju Cui, Patrick C. Kyllonen, Emily Kerzabi
The release of ChatGPT1 in late 2022 marked a turning point in human-AI interaction, demonstrating the ability of large language models (LLMs) to interpret natural language and generate coherent, context-sensitive responses. This breakthrough fundamentally reshaped access to information, making advanced language…
Kees Schouhamer Immink, Jos H. Weber, Tuan Thanh Nguyen, Kui Cai + 2 more
The design of low-complexity and efficient constrained codes has been a major research item for many years. This paper reports on a versatile method named concatenated constrained codes for designing efficient fixed-length constrained codes with small complexity. A concatenated constrained code comprises two (or more)…
Zian Meng, Qiang Li, W.H. Wilson Tang, Yan + 2 more
—Deep learning-based semantic communication has largely relied on analog or semi-digital transmission, which limits compatibility with modern digital communication infrastructures. Recent studies have employed vector quantization (VQ) to enable discrete semantic transmission, yet existing methods neglect channel state…
Huazi Zhang, Xianbin Wang, Jiajie Tong, Jun Wang + 1 more
This paper introduces a novel framework for polar codes, designed for flexible Incremental Redundancy Hybrid Automatic Repeat Request (IR-HARQ). By generalizing the decoding order beyond the standard 1$\to$N sequence, we enable a capacity-aware scheduling strategy that prioritizes the decoding of reliable subblocks.…
Min Qiu, Xiaowei Wu, Peng Kang, Lei Yang + 1 more
The concept of spatial coupling is among the most significant breakthroughs in coding theory over the past decade. The excellent waterfall and error floor performance of spatially coupled codes has positioned them as promising coding candidates for future communication and data storage systems. This article presents an…
A Safryghin, G Badihi, R Ferrer-i-Cancho, C Grund + 8 more
Zipf’s law of brevity is a widespread manifestation of information compression found across human languages and other communication systems. Chimpanzee gesture represents a rare absence of its expression in short-range communication. But, whether this absence reflects a feature of ape gesture production, or results…
Hongbo Yu, Sohail Saif
In wireless communication, the multipath effect and the time-varying channel due to mobility will directly lead to the key update cycle lagging far behind the channel change, which is difficult to effectively resist various malicious attacks and stealing behaviors, and affects the effect of privacy data protection in…
Yossef Steinberg, Michèle Wigger
We derive the capacity region of the degraded broadcast channel (DBC) subject to the constraint that the communication is not detected by an adversary, the Warden. Our capacity result is in a computable form and numerical results show that time-sharing is suboptimal in general, and improved rates can be obtained…
Gen Li, Lei Xiao, Junyi Du, Yanbo Sun + 6 more
Integrated sensing and communication (ISAC) systems greatly promote the development of radio communication and sensing in the sixth-generation era. Meanwhile, the unmanned aerial vehicle (UAV) provides larger coverage and efficiency for multiple user communication and sensing due to the high mobility. Thus, the merging…
Shuai Wang, Jiayin Wang, Jiayi Wang, Zhiyuan Yuan + 1 more
Cell–cell communication coordinates tissue development, homeostasis, and immunity, yet defining signaling interactions within intact tissues remains challenging. Single-cell transcriptomics enables systematic ligand– receptor inference, but tissue dissociation removes spatial context and obscures local and…
Yuxin Han, Sen Wang, Yaping Sun, Kai Niu + 3 more
Classical information theory (CIT) characterizes the transmission limit for communication systems under syntactic accuracy, whereas semantic information theory (SIT) studies communication from the perspective of semantic fidelity induced by synonymous mapping. In this paper, we investigate the semantic channel capacity…
Niklas Brunn, Laia C. Guitart, Kiana Farhadyar, Camila L. Fullio + 4 more
Recent advances in spatial transcriptomics and computational modeling enable the study of cellular interactions in situ. However, existing methods quantify ligand–receptor activity pairwise or between predefined cell groups, yielding overlapping signals and limited ability to summarize concurrent interactions into…
Yifan Chen, Jiaming Cui, Shilong Zhang, Enyan Liu + 3 more
Cell–cell communication analyses usually focus on protein ligands and receptors and therefore miss extracellular vesicle transfer of microRNAs, an important route of signalling in cancer. Here we show that microRNA-mediated communication can be inferred from standard single-cell RNA sequencing by detecting coordinated…
Authors not listed
This work establishes theoretical foundations for hierarchical quantum-classical algorithm design, where complex problems are decomposed across multiple spatial, temporal, or organizational scales with quantum and classical computation assigned to appropriate levels. We develop a mathematical framework that…
Alice Tor, Yuxin Wu, Stephen E Clarke, Lisa Yamada + 2 more
The complexity of neural data changes as the brain processes information during events. Universal lossless compression algorithms, which are broadly applicable and grounded in information theory, identify and exploit redundancies in data in order to compress it to essentially-optimal sizes regardless of underlying…