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We present a complete Visible Light Communications (VLC) transceiver system consisting of low-cost Commercial-Off-The-Shelf (COTS) components. In particular, we show that COTS IEEE 802.11n (WiFi) devices can be used so that the physical and…

Networking and Internet Architecture · Computer Science 2020-01-29 Piotr Gawłowicz , Elnaz Alizadeh Jarchlo , Anatolij Zubow

Precoding techniques are key to dealing with multiuser interference in the downlink of cell-free (CF) multiple-input multiple-output systems. However, these techniques rely on accurate estimates of the channel state information at the…

Information Theory · Computer Science 2024-07-09 A. Flores , R. de Lamare

The WiFi backscatter communications offer ultra-low power and ubiquitous connections for IoT systems. Caused by the intermittent-nature of the WiFi traffics, state-of-the-art WiFi backscatter communications are not reliable for backscatter…

Signal Processing · Electrical Eng. & Systems 2019-12-16 Xin He , Weiwei Jiang , Meng Cheng , Xiaobo Zhou , Peng-Jun Wan , Panlong Yang , Brian Kurkoski

Fast and efficient identify a large number of RFID tags in the region of interest is a critical issue in various RFID applications. In this paper, a novel sub-frame-based algorithm with a time-efficient frame size adjustment strategy to…

Networking and Internet Architecture · Computer Science 2018-05-10 Jian Su , Kexiong Liu , Haipeng Chen , Yu Han

The growing role that artificial intelligence and specifically machine learning is playing in shaping the future of wireless communications has opened up many new and intriguing research directions. This paper motivates the research in the…

Machine Learning · Computer Science 2020-04-23 Muhammad Alrabeiah , Andrew Hredzak , Zhenhao Liu , Ahmed Alkhateeb

The reconfigurable intelligent surface (RIS) is a promising technology for next-generation wireless communication. It comprises many passive antennas, which reflect signals from the transmitter to the receiver with adjusted phases without…

Signal Processing · Electrical Eng. & Systems 2023-01-18 Bile Peng , Finn Siegismund-Poschmann , Eduard A. Jorswieck

Wireless sensors in extreme environments such as underground, concrete wall, and the human body, can enable a large number of important applications. However, deploying wireless sensors in such environments on a large scale is a great…

Signal Processing · Electrical Eng. & Systems 2019-07-24 Hongzhi Guo , Zhi Sun

In this paper, we propose an open source, production first, and production ready speech recognition toolkit called WeNet in which a new two-pass approach is implemented to unify streaming and non-streaming end-to-end (E2E) speech…

Sound · Computer Science 2021-12-30 Zhuoyuan Yao , Di Wu , Xiong Wang , Binbin Zhang , Fan Yu , Chao Yang , Zhendong Peng , Xiaoyu Chen , Lei Xie , Xin Lei

Wireless communications are critical in the constantly changing environment of IoT and RFID technologies, where thousands of devices can be deployed across a wide range of scenarios. Whether connecting to cloud servers or local fog/edge…

Networking and Internet Architecture · Computer Science 2024-11-01 Angel Niebla-Montero , Ivan Froiz-Miguez , Paula Fraga-Lamas , Tiago M. Fernandez-Carames

WiFi technology has been applied to various places due to the increasing requirement of high-speed Internet access. Recently, besides network services, WiFi sensing is appealing in smart homes since it is device-free, cost-effective and…

Networking and Internet Architecture · Computer Science 2022-08-23 Jianfei Yang , Xinyan Chen , Han Zou , Dazhuo Wang , Qianwen Xu , Lihua Xie

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

This paper presents a framework based on Weighted Finite-State Transducers (WFST) to simplify the development of modifications for RNN-Transducer (RNN-T) loss. Existing implementations of RNN-T use CUDA-related code, which is hard to extend…

Audio and Speech Processing · Electrical Eng. & Systems 2023-05-10 Aleksandr Laptev , Vladimir Bataev , Igor Gitman , Boris Ginsburg

Collaborative perception is vital for autonomous driving yet remains constrained by tight communication budgets. Earlier work reduced bandwidth by compressing full feature maps with fixed-rate encoders, which adapts poorly to a changing…

Computer Vision and Pattern Recognition · Computer Science 2026-03-03 Gong Chen , Chaokun Zhang , Xinyan Zhao

Real-time applications require latencies on the order of a millisecond with very high reliabilities, paralleling the requirements for high-performance industrial control. Current wireless technologies like WiFi, Bluetooth, LTE, etc. are…

Information Theory · Computer Science 2018-03-15 Vasuki Narasimha Swamy , Paul Rigge , Gireeja Ranade , Anant Sahai , Borivoje Nikolic

WSNs can be considered a distributed control system designed to react to sensor information with an effective and timely action. For this reason, in WSNs it is important to provide real-time coordination and communication to guarantee…

Networking and Internet Architecture · Computer Science 2013-01-03 Deepali Virmani , Satbir Jain

This paper aims to design robust Edge Intelligence using semantic communication for time-critical IoT applications. We systematically analyze the effect of image DCT coefficients on inference accuracy and propose the channel-agnostic…

Computer Vision and Pattern Recognition · Computer Science 2022-11-29 Andrea Cavagna , Nan Li , Alexandros Iosifidis , Qi Zhang

We demonstrate the world's first hybrid radio platform which combines the strengths of active radio (long range and robustness to interference) and Computational RFIDs (low power consumption). We evaluate the Wireless Identification and…

Networking and Internet Architecture · Computer Science 2016-11-17 Ivar in 't Veen , Qingzhi Liu , Przemysław Pawełczak , Aaron Parks , Joshua R. Smith

Compressive sensing (CS) has been widely used for the data gathering in wireless sensor networks for the purpose of reducing the communication overhead recent years. In this paper, we first show that with simple modification, 1-bit…

Networking and Internet Architecture · Computer Science 2014-01-08 Jiping Xiong , Qinghua Tang , Jian Zhao

In this paper, we study single transceiver passive RFID networks by modeling the underlying physical system as a special cascade of a certain broadcast channel (BCC) and a multiple access channel (MAC), using a "nested codebook" structure…

Information Theory · Computer Science 2009-01-07 Yucel Altug , S. Serdar Kozat , M. Kivanc Mihcak

Radio Frequency Identification (RFID) is a widely used technology for identifying and locating objects equipped with low-cost RFID transponders (tags). UHF (Ultra High Frequency) RFID operates in frequency bands around 900 MHz and supports…

Signal Processing · Electrical Eng. & Systems 2025-11-26 Clemens Korn , Joerg Robert