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Persistent homology has been studied to better understand the structural properties and topology features of weighted networks. It can reveal hidden layers of information about the higher-order structures formed by non-pairwise interactions…

组合数学 · 数学 2025-06-25 Udit Raj , Slobodan Maletić , Sudeepto Bhattacharya

We study a mobile wireless sensor network (MWSN) consisting of multiple mobile sensors or robots. Three key factors in MWSNs, sensing quality, energy consumption, and connectivity, have attracted plenty of attention, but the interaction of…

分布式、并行与集群计算 · 计算机科学 2018-06-20 Jun Guo , Hamid Jafarkhani

Existing information theoretic work in decentralized detection is largely focused on parallel configuration of Wireless Sensor Networks (WSNs), where an individual hard or soft decision is computed at each sensor node and then transmitted…

分布式、并行与集群计算 · 计算机科学 2013-09-09 Yasaman Keshtkarjahromi , Rashid Ansari , Ashfaq Khokhar

We propose a localization algorithm for wireless sensor networks, which is simple in design, does not involve significant overhead and yet provides acceptable position estimates of sensor nodes. The algorithm uses settled nodes as beacon…

网络与互联网体系结构 · 计算机科学 2016-12-30 Muhammad Farooq-i-Azam , Muhammad Naeem Ayyaz , Saleem Akhtar

Persistent homology of the Rips filtration allows to track topological features of a point cloud over scales, and is a foundational tool of topological data analysis. Unfortunately, the Rips-filtration is exponentially sized, when…

计算几何 · 计算机科学 2018-07-27 Bernhard Brehm , Hanne Hardering

Wireless mesh networks (WMNs) are evolving as a key technology for next-generation wireless networks showing raid progress and numerous applications. These networks have the potential to provide robust and high-throughput data delivery to…

密码学与安全 · 计算机科学 2021-09-07 Jaydip Sen

In this paper, a cooperative localization algorithm is proposed that considers the existence of obstacles in mobilityassisted wireless sensor networks (WSNs). In this scheme, a mobile anchor (MA) node cooperates with static sensor nodes and…

信息论 · 计算机科学 2016-11-17 Hongyang Chen , Qingjiang Shi , Pei Huang , H. Vincent Poor , Kaoru Sezaki

Concepts such as energy dependence, random deployment, dynamic topological update, self-organization, varying large number of nodes are among many factors that make WSNs a type of complex system. However, when analyzing WSNs properties…

网络与互联网体系结构 · 计算机科学 2012-08-16 Vincent Labatut , Ozgovde Atay

Topology control algorithms allow each node in a wireless multi-hop network to adjust the power at which it makes its transmissions and choose the set of neighbors with which it communicates directly, while preserving global goals such as…

网络与互联网体系结构 · 计算机科学 2013-09-13 Xiaoyu Chu , Harish Sethu

Many mobile networks are represented as graphs to obtain insight to their connectivity and transmission properties. Among these properties centrality resilience, that is, how well centralities, such as closeness and betweennesss, are…

社会与信息网络 · 计算机科学 2024-07-10 Fariba Afrin Irany , Soumya Sarakar , Animesh Mukherjee , Sanjukta Bhowmick

In recent times, the use of stochastic geometry has become a popular and important tool for performance analysis of next-generation dense small cell wireless networks. Usually, such networks are modeled using 2 dimensional spatial Poisson…

信息论 · 计算机科学 2020-01-01 Aritra Chatterjee , Suvra Sekhar Das

Due to sophisticated deployments of all kinds of wireless networks (e.g., 5G, Wi-Fi, Bluetooth, LEO satellite, etc.), multiband signals distribute in a large bandwidth (e.g., from 70 MHz to 8 GHz). Consequently, for network monitoring and…

硬件体系结构 · 计算机科学 2024-05-27 Jinbo Peng , Zhe Chen , Zheng Lin , Haoxuan Yuan , Zihan Fang , Lingzhong Bao , Zihang Song , Ying Li , Jing Ren , Yue Gao

Distributed consensus has been widely studied for sensor network applications. Whereas the asymptotic convergence rate has been extensively explored in prior work, other important and practical issues, including energy efficiency and link…

网络与互联网体系结构 · 计算机科学 2013-04-10 Lei Chen , Jeff Frolik

We propose an algorithm which produces a randomized strategy reaching optimal data propagation in wireless sensor networks (WSN).In [6] and [8], an energy balanced solution is sought using an approximation algorithm. Our algorithm improves…

分布式、并行与集群计算 · 计算机科学 2007-05-23 Pierre Leone , Olivier Powell , Jose Rolim

The topological information of a network can be retrieved equivalently from its complement consisting of the same nodes but complementary edges. Hence the partition of a network into certain substructures based on given criteria should be…

物理与社会 · 物理学 2009-08-07 Jiao Wang , C. -H. Lai

We propose a distributed algorithm for time synchronization in mobile wireless sensor networks. Each node can employ the algorithm to estimate the global time based on its local clock time. The problem of time synchronization is formulated…

系统与控制 · 计算机科学 2014-12-30 Chenda Liao , Prabir Barooah

This paper develops a stochastic geometry-based approach for the modeling and analysis of single- and multi-cluster wireless networks. We first define finite homogeneous Poisson point processes to model the number and locations of the…

Reconfigurable intelligent surfaces (RISs) provide alternative routes for reflected signals to network users, offering numerous applications. This paper explores an innovative approach of strategically deploying RISs along road areas to…

信号处理 · 电气工程与系统科学 2024-08-12 Chang-Sik Choi , Junhyeong Kim , Junil Choi

Intrusion detection in wireless ad hoc networks is a challenging task because these networks change their topologies dynamically, lack concentration points where aggregated traffic can be analyzed, utilize infrastructure protocols that are…

密码学与安全 · 计算机科学 2021-09-07 Jaydip Sen

A wireless sensor network is composed of many sensor nodes that have been given out in a specific zone and each of them had an ability of collecting information from the environment and sending collected data to the sink. The most…

网络与互联网体系结构 · 计算机科学 2016-09-12 Ali Sedighimanesh , Mohammad Sedighimanesh , Javad Baqeri