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This paper presents a novel wireless image transmission paradigm that can exploit feedback from the receiver, called DeepJSCC-ViT-f. We consider a block feedback channel model, where the transmitter receives noiseless/noisy channel output…

Information Theory · Computer Science 2024-02-16 Haotian Wu , Yulin Shao , Emre Ozfatura , Krystian Mikolajczyk , Deniz Gündüz

Future Internet-of-Things (IoT) is expected to wirelessly connect billions of low-complexity devices. For wireless information transfer (WIT) in IoT, high density of IoT devices and their ad hoc communication result in strong interference…

Information Theory · Computer Science 2017-11-27 Wanchun Liu , Kaibin Huang , Xiangyun Zhou , Salman Durrani

Fault-tolerant modular quantum computing requires stabilizer measurements across the modules in a quantum network. For this, entangled states of high quality and rate must be distributed. Currently, two main types of entanglement…

Next-generation wireless networks are projected to empower a broad range of Internet-of-things (IoT) applications and services with extreme data rates, posing new challenges in delivering large-scale connectivity at a low cost to current…

Information Theory · Computer Science 2024-06-05 Thai-Hoc Vu , Daniel Benevides da Costa , Bao Vo Nguyen Quoc , Sunghwan Kim

We consider a low-complexity version of the Compute and Forward scheme that involves only scaling, offset (dithering removal) and scalar quantization at the relays. The proposed scheme is suited for the uplink of a distributed antenna…

Information Theory · Computer Science 2011-09-06 Song-Nam Hong , Giuseppe Caire

One of the main problems in quantum communications is how to achieve high rates at long distances. Quantum repeaters, i.e., untrusted, intermediate relay stations, are necessary to overcome the repeaterless bound which sets the fundamental…

Quantum Physics · Physics 2021-05-11 Matthew S. Winnel , Joshua J. Guanzon , Nedasadat Hosseinidehaj , Timothy C. Ralph

The length of a secure link over which a quantum key can be distributed depends on the efficiency and dark-count rate of the detectors used at the receiver. We report on the first demonstration of quantum key distribution using…

The explosive demand for data has called for solution approaches that range from spectrally agile cognitive radios with novel spectrum sharing, to use of higher frequency spectrum as well as smaller and denser cell deployments with diverse…

Networking and Internet Architecture · Computer Science 2014-11-12 Ratnesh Kumbhkar , Narayan Mandayam , Ivan Seskar

The feasibility of physical-layer-based security approaches for wireless communications in the presence of one or more eavesdroppers is hampered by channel conditions. In this paper, cooperation is investigated as an approach to overcome…

Information Theory · Computer Science 2008-09-30 Lun Dong , Zhu Han , Athina P. Petropulu , H. Vincent Poor

In a wireless network with a single source and a single destination and an arbitrary number of relay nodes, what is the maximum rate of information flow achievable? We make progress on this long standing problem through a two-step approach.…

Information Theory · Computer Science 2016-11-18 Salman Avestimehr , Suhas Diggavi , David Tse

Caching and multicasting at base stations are two promising approaches to support massive content delivery over wireless networks. However, existing analysis and designs do not fully explore and exploit the potential advantages of the two…

Information Theory · Computer Science 2016-02-19 Ying Cui , Dongdong Jiang , Yueping Wu

We consider cache-aided wireless communication scenarios where each user requests both a file from an a-priori generated cacheable library (referred to as 'content'), and an uncacheable 'non-content' message generated at the start of the…

Information Theory · Computer Science 2021-04-06 Hamdi Joudeh , Eleftherios Lampiris , Petros Elia , Giuseppe Caire

The compute-and-forward framework permits each receiver in a Gaussian network to directly decode a linear combination of the transmitted messages. The resulting linear combinations can then be employed as an end-to-end communication…

Information Theory · Computer Science 2016-11-17 Bobak Nazer , Viveck Cadambe , Vasilis Ntranos , Giuseppe Caire

This paper investigates the performance of streaming codes in low-latency applications over a multi-link three-node relayed network. The source wishes to transmit a sequence of messages to the destination through a relay. Each message must…

Information Theory · Computer Science 2022-01-19 Gustavo Kasper Facenda , Elad Domanovitz , Ashish Khisti , Wai-Tian Tan , John Apostolopoulos

The communication range of wireless networks can be greatly improved by using distributed beamforming from a set of independent radio nodes. One of the key challenges in establishing a beamformed communication link from separate radios is…

Signal Processing · Electrical Eng. & Systems 2020-04-06 Han Yan , Samer Hanna , Kevin Balke , Riten Gupta , Danijela Cabric

This paper studies caching in (K+L-1) x K partially connected wireless linear networks, where each of the K receivers locally communicates with L out of the K+L-1 transmitters, and caches are at all nodes. The goal is to design caching and…

Information Theory · Computer Science 2019-10-14 Fan Xu , Meixia Tao , Tiankai Zheng

Scatter radio, i.e., communication by means of reflection, has been recently proposed as a viable ultra-low power solution for wireless sensor networks (WSNs). This work offers a detailed comparison between monostatic and multistatic…

Information Theory · Computer Science 2018-04-12 Panos N. Alevizos , Konstantinos Tountas , Aggelos Bletsas

We consider a wireless network composed of three nodes and limited by the half-duplex and total power constraints. This formulation encompasses many of the special cases studied in the literature and allows for capturing the common features…

Information Theory · Computer Science 2007-07-13 Lifeng Lai , Ke Liu , Hesham El Gamal

Quantum information technology has the potential to revolutionize computing, communications, and security. To fully realize its potential, quantum processors with millions of qubits are needed, which is still far from being accomplished.…

Quantum Physics · Physics 2023-12-12 Nicholas Skjellum , Mohamed Shaban , Muhammad Ismail

The latency gap between wired and wireless networks poses a challenge in the adoption of wireless technologies in latency-sensitive scenarios. The gap is especially notable in multi-hop communication typical for industrial sensor networks…

Networking and Internet Architecture · Computer Science 2026-03-25 Xinlei Liu , Andrey Belogaev , Jonathan Oostvogels , Bingwu Fang , Danny Hughes , Jeroen Famaey