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相关论文: Variable-Length Stop-Feedback Coding for Minimum A…

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We present an upper bound on the error probability achievable using variable-length stop feedback codes, for a fixed size of the information payload and a given constraint on the maximum latency and the average service time. Differently…

信息论 · 计算机科学 2020-02-20 Johan Östman , Rahul Devassy , Giuseppe Durisi , Erik G. Ström

We investigate the age-of-information (AoI) in the context of random access networks, in which transmitters need to send a sequence of information packets to the intended receivers over a shared spectrum. Due to interference, the dynamics…

信息论 · 计算机科学 2021-09-21 Howard H. Yang , Ahmed Arafa , Tony Q. S. Quek , H. Vincent Poor

We consider a status updating system where having timely knowledge about the information source at the destination (monitor) is of utmost importance. By utilizing the age of information (AoI) metric, the freshness of status update over an…

信息论 · 计算机科学 2019-11-15 Alireza Javani , Marwen Zorgui , Zhiying Wang

In wireless industrial networks, the information of time-sensitive control systems needs to be transmitted in an ultra-reliable and low-latency manner. This letter studies the resource allocation problem in finite blocklength transmission,…

网络与互联网体系结构 · 计算机科学 2020-05-15 Chen-Feng Liu , Mehdi Bennis

Unmanned aerial vehicles (UAVs) have the potential for time-sensitive applications. Due to wireless channel variation, received data may have an expiration time, particularly in critical situations such as rescue operations, natural…

系统与控制 · 电气工程与系统科学 2024-11-20 Shima Salar Hosseini , Paeiz Azmi , Ali Nazari

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…

信息论 · 计算机科学 2023-03-08 Zhiling Yue , Howard H. Yang , Meng Zhang , Nikolaos Pappas

Variable-length feedback coding has the potential to significantly enhance communication reliability in finite block length scenarios by adapting coding strategies based on real-time receiver feedback. Designing such codes, however, is…

信息论 · 计算机科学 2024-11-14 Wenwei Lai , Yulin Shao , Yu Ding , Deniz Gunduz

Age of Information (AoI) is a newly appeared concept and metric to characterize the freshness of data. In this work, we study the delay and AoI in a multiple access channel (MAC) with two source nodes transmitting different types of data to…

信息论 · 计算机科学 2019-03-13 Zheng Chen , Nikolaos Pappas , Emil Björnson , Erik G. Larsson

In this work, we investigate information freshness in a status update communication system consisting of a source-destination link. Initially, we study the properties of a sample path of the age of information (AoI) process at the…

网络与互联网体系结构 · 计算机科学 2020-12-22 Antzela Kosta , Nikolaos Pappas , Anthony Ephremides , Vangelis Angelakis

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,…

性能 · 计算机科学 2020-09-24 Yukang Jiang , Kiichi Tokuyama , Yuichiro Wada , Moeko Yajima

Age of information (AoI) is a powerful metric to evaluate the freshness of information, where minimization of average statistics, such as the average AoI and average peak AoI, currently prevails in guiding freshness optimization for related…

信息论 · 计算机科学 2023-11-29 Yuquan Xiao , Qinghe Du

The Age of Information (AoI) has emerged as a critical metric for quantifying information freshness; however, its interplay with channel estimation in partially observable wireless systems remains underexplored. This work considers a…

信息论 · 计算机科学 2025-07-08 Onur Ayan , Jiping Luo , Xueli An , Nikolaos Pappas

Age of information (AoI) is a recently proposed metric that measures the time elapsed since the generation of the last received information update. We consider the problem of AoI minimization for a network under general interference…

网络与互联网体系结构 · 计算机科学 2018-05-18 Rajat Talak , Igor Kadota , Sertac Karaman , Eytan Modiano

Joint design of control and communication in Wireless Networked Control Systems (WNCS) is a promising approach for future wireless industrial applications. In this context, Age of Information (AoI) has been increasingly utilized as a metric…

系统与控制 · 电气工程与系统科学 2021-06-02 Pedro M. de Sant Ana , Nikolaj Marchenko , Petar Popovski , Beatriz Soret

Age of information (AoI) is a performance metric that captures the freshness of status updates. While AoI has been studied thoroughly for point-to-point links, the impact of modern random-access protocols on this metric is still unclear. In…

信息论 · 计算机科学 2021-12-03 Khac-Hoang Ngo , Giuseppe Durisi , Alexandre Graell i Amat

Age of Information (AoI) is a metric and KPI that has been developed for measuring and controlling data freshness. Optimization of AoI in a real-life network requires adapting the rate and timing of transmissions to varying network…

网络与互联网体系结构 · 计算机科学 2025-04-14 Sajjad Baghaee , Elif Uysal

Consider a scenario where a source continuously monitors an object and sends time-stamped status updates to a destination through a rate-limited link. In order to measure the "freshness" of the status information available at the…

信息论 · 计算机科学 2018-07-03 Boyu Wang , Songtao Feng , Jing Yang

Age of information (AoI) is an effective measure to quantify the information freshness in wireless status update systems. It has been further validated that the peak AoI has the potential to capture the core characteristics of the aging…

系统与控制 · 电气工程与系统科学 2024-06-05 Yuquan Xiao , Qinghe Du , George K. Karagiannidis

Age of Information (AoI), namely the time that has elapsed since the most recently delivered packet was generated, is receiving increasing attention with the emergence of many real-time applications that rely on the exchange of…

信息论 · 计算机科学 2024-05-08 Xinlu Dai , Cyril Leung

Age-of-information (AoI) is a novel metric that measures the freshness of information in status update scenarios. It is essential for real-time applications to transmit status update packets to the destination node as timely as possible.…

分布式、并行与集群计算 · 计算机科学 2019-01-15 Qiaobin Kuang , Jie Gong , Xiang Chen , Xiao Ma