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Time-varying delays adversely affect the performance of networked control sys-tems (NCS) and in the worst-case can destabilize the entire system. Therefore, modelling network delays is important for designing NCS. However, modelling…

Systems and Control · Computer Science 2015-09-24 B. Sreram , F. Bounapane , B. Subathra , Seshadhri Srinivasan

Ride-hailing services have expanded the role of shared mobility in passenger transportation systems, creating new markets and creative planning solutions for major urban centers. In this paper, we consider their use for the first-mile or…

Optimization and Control · Mathematics 2022-03-29 Arvind U Raghunathan , David Bergman , John Hooker , Thiago Serra , Shingo Kobori

In this paper, we introduce the online service with delay problem. In this problem, there are $n$ points in a metric space that issue service requests over time, and a server that serves these requests. The goal is to minimize the sum of…

Data Structures and Algorithms · Computer Science 2017-08-21 Yossi Azar , Arun Ganesh , Rong Ge , Debmalya Panigrahi

Unpredictable sensor-to-estimator delays fundamentally distort what matters for wireless remote state estimation: not just freshness, but how delay interacts with sensor informativeness and energy efficiency. In this paper, we present a…

Information Theory · Computer Science 2026-01-30 Nho-Duc Tran , Aamir Mahmood , Mikael Gidlund

This paper presents an effective framework for estimating time of arrival of vehicles (buses) in an Intelligent Transit Management System (ITMS) having sparse position updates. Our contributions towards this is firstly in implementing a…

Systems and Control · Electrical Eng. & Systems 2023-11-22 Shivika Sharma , Nandini Mawane , Dhruthick Gowda M , Mayur Taware , Chetan Kumar , Yash Chandrashekhar Dixit , Rakshit Ramesh

Time delays may cause dramatic changes to the dynamics of interacting oscillators. Coupled networks of interacting dynamical systems can behave unexpectedly when the signal between the vertices are time delayed. It has been shown for a very…

Chaotic Dynamics · Physics 2018-06-19 Alexandre Wagemakers , Miguel A. F. Sanjuán

The paper studies closed queueing networks containing a server station and $k$ client stations. The server station is an infinite server queueing system, and client stations are single-server queueing systems with autonomous service, i.e.…

Probability · Mathematics 2008-01-24 Vyacheslav M. Abramov

Relaying can improve the coverage and performance of wireless access networks. In presence of a localisation system at the mobile nodes, the use of such location estimates for relay node selection can be advantageous as such information can…

Networking and Internet Architecture · Computer Science 2015-05-08 Jimmy J. Nielsen , Rasmus L. Olsen , Tatiana K. Madsen , Bernard Uguen , Hans-Peter Schwefel

Meeting the diverse delay requirements of emerging wireless applications is one of the most critical goals for the design of ultradense networks. Though the delay of point-to-point communications has been well investigated using classical…

Information Theory · Computer Science 2018-04-20 Yi Zhong , Martin Haenggi , Fu-Chun Zheng , Wenyi Zhang , Tony Q. S. Quek , Weili Nie

Urban transportation systems are vulnerable to congestion, accidents, weather, special events, and other costly delays. Whereas typical policy responses prioritize reduction of delays under normal conditions to improve the efficiency of…

Physics and Society · Physics 2017-12-22 Alexander A. Ganin , Maksim Kitsak , Dayton Marchese , Jeffrey M. Keisler , Thomas Seager , Igor Linkov

Despite measures to reduce congestion, occurrences of both recurrent and non-recurrent congestion cause large delays in road networks with important economic implications. Educated use of Intelligent Transportation Systems (ITS) can…

Optimization and Control · Mathematics 2021-11-23 Nikki Levering , Marko Boon , Michel Mandjes , Rudesindo Núñez-Queija

To model time series accurately is important within a wide range of fields. As the world is generally too complex to be modelled exactly, it is often meaningful to assess the probability of a dynamical system to be in a specific state. This…

Machine Learning · Computer Science 2023-03-16 Mari Dahl Eggen , Alise Danielle Midtfjord

Public transportation systems often suffer from unexpected fluctuations in demand and disruptions, such as mechanical failures and medical emergencies. These fluctuations and disruptions lead to delays and overcrowding, which are…

Artificial Intelligence · Computer Science 2024-03-08 Chaeeun Han , Jose Paolo Talusan , Dan Freudberg , Ayan Mukhopadhyay , Abhishek Dubey , Aron Laszka

Both capacity and latency are crucial performance metrics for the optimal operation of most networking services and applications, from online gaming to futuristic holographic-type communications. Networks worldwide have witnessed important…

Networking and Internet Architecture · Computer Science 2023-06-09 Gonzalo Martínez , José Alberto Hernández , Pedro Reviriego , Paul Reinheimer

This paper proposes a generalised framework for density estimation in large networks with measurable spatiotemporal variance in edge weights. We solve the stochastic shortest path problem for a large network by estimating the density of the…

Optimization and Control · Mathematics 2023-06-29 Raashid Altaf , Pravesh Biyani

We propose here a method to estimate a delay from a time series taking advantage of analysis of random walks with delay. This method is applicable to a time series coming out of a system which is or can be approximated as a linear feedback…

Statistical Mechanics · Physics 2009-10-30 Toru Ohira , Ryusuke Sawatari

Travel time prediction is a well-renowned topic of research. It is primarily influenced by traffic congestion, road conditions and route geometry. Among them route geometry at any point is not investigated enough to find a sound spatial…

Computers and Society · Computer Science 2018-07-25 Muhammad Naeem , Mehdi Katranji , Guilhem Sanmarty , Sami Kraiem , Hamza Mahdi Zargayouna , Fouad Hadj Selem

Crowding in train cars is increasingly a major concern for transit agencies. From the perspective of the passengers and the transit agencies, overcrowding of the train cars has several negative consequences such as: (i) extended duration of…

Signal Processing · Electrical Eng. & Systems 2018-08-22 Peter Khomchuk , Saurav R Tuladhar , Siva Sivananthan

Action and observation delays exist prevalently in the real-world cyber-physical systems which may pose challenges in reinforcement learning design. It is particularly an arduous task when handling multi-agent systems where the delay of one…

Machine Learning · Computer Science 2020-09-01 Baiming Chen , Mengdi Xu , Zuxin Liu , Liang Li , Ding Zhao

Structural properties of the Indian Railway network is studied in the light of recent investigations of the scaling properties of different complex networks. Stations are considered as `nodes' and an arbitrary pair of stations is said to be…

Soft Condensed Matter · Physics 2009-11-07 Parongama Sen , Subinay Dasgupta , Arnab Chatterjee , P. A. Sreeram , G. Mukherjee , S. S. Manna