Results 31 to 40 of about 4,526,519 (310)

Age of Information of Multi-User Mobile-Edge Computing Systems [PDF]

IEEE Open Journal of the Communications Society, 2022
In this paper, we analyze the average age of information (AoI) and the average peak AoI (PAoI) of a multiuser mobile edge computing (MEC) system where a base station (BS) generates and transmits computation-intensive packets to user equipments (UEs).
Zhifeng Tang, Zhuo Sun, Nan Yang, Xiangyun Zhou   +3 more
semanticscholar   +1 more source

Molecular mechanism of light-driven sodium pumping

Nature Communications, 2020
The Na+-pumping KR2 rhodopsin from Krokinobacter eikastus is a light-driven non-proton cation pump whose mechanism of pumping remains to be understood. Here authors solved crystal structures of the O-intermediate state of the pentameric form of KR2 and ...
Kirill Kovalev, Roman Astashkin, Ivan Gushchin, Philipp Orekhov, Dmytro Volkov, Egor Zinovev, Egor Marin, Maksim Rulev, Alexey Alekseev, Antoine Royant, Philippe Carpentier, Svetlana Vaganova, Dmitrii Zabelskii, Christian Baeken, Ilya Sergeev, Taras Balandin, Gleb Bourenkov, Xavier Carpena, Roeland Boer, Nina Maliar, Valentin Borshchevskiy, Georg Büldt, Ernst Bamberg, Valentin Gordeliy   +23 more
doaj   +1 more source

Crystal Structure of the N112A Mutant of the Light-Driven Sodium Pump KR2

Crystals, 2020
The light-driven sodium pump KR2, found in 2013 in the marine bacteria Krokinobacter eikastus, serves as a model protein for the studies of the sodium-pumping microbial rhodopsins (NaRs). KR2 possesses a unique NDQ (N112, D116, and Q123) set of the amino
Nina Maliar, Kirill Kovalev, Christian Baeken, Taras Balandin, Roman Astashkin, Maksim Rulev, Alexey Alekseev, Nikolay Ilyinsky, Andrey Rogachev, Vladimir Chupin, Dmitry Dolgikh, Mikhail Kirpichnikov, Valentin Gordeliy   +12 more
doaj   +1 more source

Age-of-Information Minimization in Healthcare IoT Using Distributionally Robust Optimization

IEEE Internet of Things Journal, 2022
In this article, we consider a cellular-based healthcare Internet of Things (IoT) system with imperfect channel state information (CSI), where a healthcare IoT device first receives radio frequency (RF) energy from the small cell base station (SBS) and ...
Zhuang Ling, Fengye Hu, Hongliang Zhang, Zhu Han   +3 more
semanticscholar   +1 more source

Modern Random Access: An Age of Information Perspective on Irregular Repetition Slotted ALOHA [PDF]

IEEE Transactions on Communications, 2020
Age of information (AoI) is gaining attention as a valuable performance metric for many IoT systems, in which a large number of devices report time-stamped updates to a central gateway.
A. Munari
semanticscholar   +1 more source

Management of agricultural production in the conditions of information society

Agricultural Economics (AGRICECON), 2007
Nowadays the development of information systems and technologies secures an effective solution of the production process. The implementation of a qualitative software solution is a competitive advantage for agricultural companies as well. In this article,
A. Látečková, M. Kučera
doaj   +1 more source

Relationship between Age and Value of Information for a Noisy Ornstein–Uhlenbeck Process

Entropy, 2021
The age of information (AoI) has been widely used to quantify the information freshness in real-time status update systems. As the AoI is independent of the inherent property of the source data and the context, we introduce a mutual information-based ...
Zijing Wang, Mihai-Alin Badiu, Justin P. Coon   +2 more
doaj   +1 more source

Minimizing the Age of Information in Wireless Networks with Stochastic Arrivals [PDF]

IEEE Transactions on Mobile Computing, 2019
We consider a wireless network with a base station serving multiple traffic streams to different destinations. Packets from each stream arrive to the base station according to a stochastic process and are enqueued in a separate (per stream) queue.
I. Kadota, E. Modiano
semanticscholar   +1 more source

Age of Information with On-Off Service

2023 IEEE Information Theory Workshop (ITW), 2023
This paper considers a communication system where a source sends time-sensitive information to its destination. We assume that both arrival and service processes of the messages are memoryless and the source has a single server with no buffer. Besides, we consider that the service is interrupted by an independent random process, which we model using ...
Ashirwad Sinha, Praful D. Mankar, Nikolaos Pappas 0001, Harpreet S. Dhillon   +3 more
openaire   +2 more sources

Age of Information in the Presence of an Adversary

IEEE INFOCOM 2022 - IEEE Conference on Computer Communications Workshops (INFOCOM WKSHPS), 2022
We consider a communication system where a base station serves $N$ users, one user at a time, over a wireless channel. We consider the timeliness of the communication of each user via the age of information metric. A constrained adversary can block at most a given fraction, $α$, of the time slots over a horizon of $T$ slots, i.e., it can block at most $
Subhankar Banerjee, Sennur Ulukus
openaire   +2 more sources