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Stringent demands for timely information delivery, driven by the widespread adoption of real-time applications and the Internet of Things, have established the age of information (AoI) as a critical metric for quantifying data freshness.…

Networking and Internet Architecture · Computer Science 2025-07-22 Muthukrishnan Senthilkumar , Aresh Dadlani , Hina Tabassum

Wireless communications for status update are becoming increasingly important, especially for machine-type control applications. Existing work has been mainly focused on Age of Information (AoI) optimizations. In this paper, a status-aware…

Information Theory · Computer Science 2020-02-05 Zhiyuan Jiang , Zixu Cao , Siyu Fu , Fei Peng , Shan Cao , Shunqing Zhang , Shugong Xu

Autoregressive Sequence-To-Sequence models are the foundation of many Deep Learning achievements in major research fields such as Vision and Natural Language Processing. Despite that, they still present significant limitations. For…

Computation and Language · Computer Science 2024-08-27 Jia Cheng Hu , Roberto Cavicchioli , Alessandro Capotondi

In this paper, we develop a hierarchical aerial computing framework composed of high altitude platform (HAP) and unmanned aerial vehicles (UAVs) to compute the fully offloaded tasks of terrestrial mobile users which are connected through an…

Networking and Internet Architecture · Computer Science 2023-05-31 Maryam Ansarifard , Nader Mokari , Mohammadreza Javan , Hamid Saeedi , Eduard A. Jorswieck

Information freshness, characterized by age of information (AoI), is important for sensor applications involving timely status updates. In many cases, the wireless signals from one sensor can be received by multiple access points (APs).…

Networking and Internet Architecture · Computer Science 2022-09-14 Haoyuan Pan , Yu Zhou , Tse-Tin Chan , Ming Tang , Jianqiang Li , Zhihua Du

Integrated sensing and communication (ISAC) systems operating at terahertz (THz) bands are envisioned to enable both ultra-high data-rate communication and precise environmental awareness for next-generation wireless networks. However, the…

Signal Processing · Electrical Eng. & Systems 2025-05-06 Kai Zhang , Wentao Yu , Hengtao He , Shenghui Song , Jun Zhang , Khaled B. Letaief

This paper investigates the problem of sensor scheduling for remotely estimating the states of heterogeneous dynamical systems over resource-limited and lossy wireless channels. Considering the low time complexity and high versatility…

Systems and Control · Electrical Eng. & Systems 2023-08-31 Taige Chang , Xianghui Cao , Wei Xing Zheng

Age-of-information (AoI) is a metric quantifying information freshness at the receiver. Since AoI combines packet generation frequency, packet loss, and delay into a single metric, it has received a lot of research attention as an interface…

Information Theory · Computer Science 2019-11-25 Onur Ayan , Mikhail Vilgelm , Wolfgang Kellerer

The age of information (AoI) performance metric for point-to-point wireless communication systems is analytically studied under Rician-faded channels and when the receiver is equipped with multiple antennas. The general scenario of a…

Information Theory · Computer Science 2022-01-03 Nikolaos I. Miridakis , Theodoros A. Tsiftsis , Guanghua Yang

Age of Information (AoI) has recently received much attention due to its relevance in IoT sensing and monitoring applications. In this paper, we consider the problem of minimizing the AoI in a system in which a set of sources are observed…

Information Theory · Computer Science 2022-08-19 Anders E. Kalør , Petar Popovski

In recent years, there has been increasing amount of interest around meta reinforcement learning methods for traffic signal control, which have achieved better performance compared with traditional control methods. However, previous methods…

Machine Learning · Computer Science 2021-10-26 Yayi Zou , Zhiwei Qin

Timeliness is an emerging requirement for many Internet of Things (IoT) applications. In IoT networks, where a large-number of nodes are distributed, severe interference may incur during the transmission phase which causes age of…

Information Theory · Computer Science 2021-02-24 Xinghua Sun , Fangming Zhao , Howard H. Yang , Wen Zhan , Xijun Wang , Tony Q. S. Quek

In this work, we consider the problem of jointly minimizing the average cost of sampling and transmitting status updates by users over a wireless channel subject to average Age of Information (AoI) constraints. Errors in the transmission…

Networking and Internet Architecture · Computer Science 2022-11-28 Emmanouil Fountoulakis , Marian Codreanu , Anthony Ephremides , Nikolaos Pappas

This paper presents DeepIA, a deep learning solution for faster and more accurate initial access (IA) in 5G millimeter wave (mmWave) networks when compared to conventional IA. By utilizing a subset of beams in the IA process, DeepIA removes…

Signal Processing · Electrical Eng. & Systems 2020-06-24 Tarun S. Cousik , Vijay K. Shah , Jeffrey H. Reed , Tugba Erpek , Yalin E. Sagduyu

Beam management (BM) protocols are critical for establishing and maintaining connectivity between network radio nodes and User Equipments (UEs). In Distributed Multiple Input Multiple Output systems (D-MIMO), a number of access points…

Signal Processing · Electrical Eng. & Systems 2024-01-12 Karthik R M , Dhiraj Nagaraja Hegde , Muris Sarajlic , Abhishek Sarkar

In this paper, we analyze the impact of data freshness on real-time supervised learning, where a neural network is trained to infer a time-varying target (e.g., the position of the vehicle in front) based on features (e.g., video frames)…

Networking and Internet Architecture · Computer Science 2022-09-27 Md Kamran Chowdhury Shisher , Yin Sun

Structured prediction is often approached by training a locally normalized model with maximum likelihood and decoding approximately with beam search. This approach leads to mismatches as, during training, the model is not exposed to its…

Computation and Language · Computer Science 2020-10-13 Renato Negrinho , Matthew R. Gormley , Geoffrey J. Gordon

Leveraging sensory information to aid the millimeter-wave (mmWave) and sub-terahertz (sub-THz) beam selection process is attracting increasing interest. This sensory data, captured for example by cameras at the basestations, has the…

Information Theory · Computer Science 2023-08-15 Gouranga Charan , Muhammad Alrabeiah , Tawfik Osman , Ahmed Alkhateeb

This work studies a real-time environment monitoring scenario in the industrial Internet of things, where wireless sensors proactively collect environmental data and transmit it to the controller. We adopt the notion of risk-sensitivity in…

Networking and Internet Architecture · Computer Science 2021-06-15 Yung-Lin Hsu , Chen-Feng Liu , Sumudu Samarakoon , Hung-Yu Wei , Mehdi Bennis

Optimization of information freshness in wireless networks has usually been performed based on queueing analysis that captures only the temporal traffic dynamics associated with the transmitters and receivers. However, the effect of…

Information Theory · Computer Science 2020-02-21 Howard H. Yang , Ahmed Arafa , Tony Q. S. Quek , H. Vincent Poor