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The paper deals with Age of Information (AoI) in a network of multiple sources and parallel queues with buffering capabilities, preemption in service and losses in served packets. The queues do not communicate between each other and the…

Performance · Computer Science 2020-12-03 Josu Doncel , Mohamad Assaad

This paper studies the age of information (AoI) on an information updating system such that multiple sources share one server to process packets of updated information. In such systems, packets from different sources compete for the server,…

Performance · Computer Science 2020-09-24 Yukang Jiang , Kiichi Tokuyama , Yuichiro Wada , Moeko Yajima

A status updating system is considered in which multiple processes are sampled and transmitted through a shared channel. Each process has its dedicated server that processes its samples before time stamping them for transmission. Time…

Information Theory · Computer Science 2025-04-09 Md Nurul Absar Siddiky , Ahmed Arafa

Perceiving the environment is one of the most fundamental keys to enabling Cooperative Driving Automation (CDA), which is regarded as the revolutionary solution to addressing the safety, mobility, and sustainability issues of contemporary…

Computer Vision and Pattern Recognition · Computer Science 2022-08-24 Zhengwei Bai , Guoyuan Wu , Matthew J. Barth , Yongkang Liu , Emrah Akin Sisbot , Kentaro Oguchi , Zhitong Huang

In this paper, the minimization of the weighted sum average age of information (AoI) in a multi-source status update communication system is studied. Multiple independent sources send update packets to a common destination node in a…

Information Theory · Computer Science 2022-05-23 Jixuan Wang , Deli Qiao

Motivated by cooperative distributed networks in which users dynamically alternate between transmit and receive modes under half-duplex constraints, this paper studies the Age of Information (AoI) in a distributed multi-user network using…

Information Theory · Computer Science 2026-04-16 Peng Zou , Ali Maatouk , Egemen Erbayat , Suresh Subramaniam

Statistical change point (CP) detection methods typically rely on likelihood-based inference and ignore contextual information about plausible CP locations beyond the observed sequence. Although informative priors provide a natural way to…

Methodology · Statistics 2026-05-05 Jonathon Jacobs , Shanshan Chen

We consider a random access network consisting of source-destination pairs. Each source node generates status updates and transmits this information to its intended destination over a shared spectrum. The goal is to minimize the…

Networking and Internet Architecture · Computer Science 2023-07-18 Zhiling Yue , Howard H. Yang , Meng Zhang , Nikolaos Pappas

Connected and autonomous vehicles (CAVs) rely heavily upon time-sensitive information update services to ensure the safety of people and assets, and satisfactory entertainment applications. Therefore, the freshness of information is a…

Systems and Control · Electrical Eng. & Systems 2024-03-15 Anik Mallik , Dawei Chen , Kyungtae Han , Jiang Xie , Zhu Han

We study peak Age of Information (PAoI) violation guarantee in a periodic multi-source status update system. The system is served by a shared base station, which requires scheduling. Our main contribution is a randomized scheduling…

Information Theory · Computer Science 2025-11-20 Kuan-Yu Lin , Wei-Lun Lu , Yu-Pin Hsu , Yu-Chih Huang

This study considers a wireless network where an access point (AP) broadcasts timely updates to numerous mobile users. The timeliness of information owned by a user is characterized by the age of information. Frequently broadcasting the…

Networking and Internet Architecture · Computer Science 2021-02-22 Yu-Pin Hsu

It is becoming increasingly clear that an important task for wireless networks is to minimize the age of information (AoI), i.e., the timeliness of information delivery. While mainstream approaches generally rely on the real-time…

Information Theory · Computer Science 2021-11-30 Bin Han , Yao Zhu , Zhiyuan Jiang , Muxia Sun , Hans D. Schotten

We consider a wireless network where N nodes compete for a shared channel over the CSMA/CA protocol to deliver observed updates to a common remote monitor. For this network, we rate the information freshness of the CSMA/CA based network…

Information Theory · Computer Science 2023-03-07 Liang Li , Yunquan Dong , Chengsheng Pan , Pingyi Fan

This paper studies cooperative spectrum sensing in cognitive radio networks where secondary users collect local energy statistics and report their findings to a secondary base station, i.e., a fusion center. First, the average error…

Information Theory · Computer Science 2015-03-20 Gang Xiong , Shalinee Kishore , Aylin Yener

The freshness of information in real-time monitoring systems has received increasing attention, with Age of Information (AoI) emerging as a novel metric for measuring information freshness. In many applications, update packets need to be…

Information Theory · Computer Science 2024-04-04 Jianhang Zhu , Jie Gong

We propose a frame slotted ALOHA (FSA)-based protocol for a random access network where sources transmit status updates to their intended destinations. We evaluate the effect of such a protocol on the network's timeliness performance using…

Information Theory · Computer Science 2023-03-08 Zhiling Yue , Howard H. Yang , Meng Zhang , Nikolaos Pappas

We investigate the problem of co-designing computation and communication in a multi-agent system (e.g. a sensor network or a multi-robot team). We consider the realistic setting where each agent acquires sensor data and is capable of local…

Networking and Internet Architecture · Computer Science 2025-02-11 Vishrant Tripathi , Luca Ballotta , Luca Carlone , Eytan Modiano

Frequent parameter exchanges between clients and the edge server incur substantial communication overhead, posing a critical bottleneck in federated learning (FL). By exploiting the superposition property of wireless waveforms, over-the-air…

Distributed, Parallel, and Cluster Computing · Computer Science 2025-11-18 Ruihao Du , Jiaqi Zhu , Zeshen Li , Howard H. Yang

The age of Incorrect Information (AoII) has been introduced recently to address the shortcomings of the standard Age of information metric (AoI) in real-time monitoring applications. In this paper, we consider the problem of monitoring the…

Information Theory · Computer Science 2021-02-08 Saad Kriouile , Mohamad Assaad

Age of Information (AoI), measures the time elapsed since the last received information packet was generated at the source. We consider the problem of AoI minimization for single-hop flows in a wireless network, under pairwise interference…

Information Theory · Computer Science 2018-03-20 Rajat Talak , Sertac Karaman , Eytan Modiano