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In this study, the concept of small worlds is investigated in the context of large-scale wireless ad hoc and sensor networks. Wireless networks are spatial graphs that are usually much more clustered than random networks and have much…

Networking and Internet Architecture · Computer Science 2016-08-31 Ahmed Helmy

Emerging ad hoc networks are infrastructure-less networks consisting of wireless devices with various power constraints, capabilities and mobility characteristics. An essential capability in future ad hoc networks is the ability to provide…

Networking and Internet Architecture · Computer Science 2007-05-23 Ahmed Helmy

In large-scale wireless networks such as mobile ad hoc and sensor networks, efficient and robust service discovery and data-access mechanisms are both essential and challenging. Rendezvous-based mechanisms provide a valuable solution for…

Networking and Internet Architecture · Computer Science 2007-05-23 Karim Seada , Ahmed Helmy

Mobile Ad hoc Network (MANET) is an infrastructure-less network formed between a set of mobile nodes. The discovery of services in MANET is a challenging job due to the unique properties of network. In this paper, a novel service discovery…

Networking and Internet Architecture · Computer Science 2017-10-06 Noman Islam , Zubair A. Shaikh , Aqeel-ur-Rehman , Muhammad Shahab Siddiqui

In this paper, we present a new city-scale decentralized mesh network system suited for disaster recovery and emergencies. When wide-area connectivity is unavailable or significantly degraded, our system, MapMesh, enables static access…

Networking and Internet Architecture · Computer Science 2025-04-10 Ziqian Liu , Om Chabra , James Lynch , Chenning Li , Manya Ghobadi , Hari Balakrishnan

The emergence of the Mobile Ad Hoc Networking (MANET) technology advocates self-organized wireless interconnection of communication devices that would either extend or operate in concert with the wired networking infrastructure or,…

Cryptography and Security · Computer Science 2024-03-04 Panagiotis Papadimitratos , Zygmunt J. Haas

Peer-to-peer systems have gained a lot of attention as information sharing systems for the widespread exchange of resources and voluminous information that is easily accessible among thousands of users. However, current peer-to-peer…

Cryptography and Security · Computer Science 2010-11-02 K. Kumar , J. Nafeesa Begum , V. Sumathy

In situations where establishing a network infrastructure is impossible, Ad-hoc networks are considered particularly important. Most of the previous research in Ad-hoc networks concentrated on the development and enhancement of dynamic…

Networking and Internet Architecture · Computer Science 2013-10-08 Amer O. Abu Salem , Tareq Alhmiedat , Ghassan Samara

A Mobile Ad hoc network (MANET) consists of nodes which use multi-hop communication to establish connection between nodes. Traditional infrastructure based systems use a centralized architecture for address allocation. However, this is not…

Networking and Internet Architecture · Computer Science 2016-05-03 Akshay Khatri , Sankalp Kolhe , Nupur Giri

In this article, we propose a novel navigation framework that leverages a two layered graph representation of the environment for efficient large-scale exploration, while it integrates a novel uncertainty awareness scheme to handle dynamic…

Robotics · Computer Science 2024-02-07 Akash Patel , Mario A V Saucedo , Christoforos Kanellakis , George Nikolakopoulos

We investigate the exploration and mapping of anonymous graphs by a mobile agent. It is long known that, without global information about the graph, it is not possible to make the agent halt after the exploration except if the graph is a…

Distributed, Parallel, and Cluster Computing · Computer Science 2016-04-21 Jérémie Chalopin , Emmanuel Godard , Antoine Naudin

Large language model (LLM)-based multi-agent systems have shown strong capabilities in tasks such as code generation and collaborative reasoning. However, the effectiveness and robustness of these systems critically depend on their…

Computation and Language · Computer Science 2026-03-03 Tongtong Wu , Yanming Li , Ziye Tang , Chen Jiang , Linhao Luo , Guilin Qi , Shirui Pan , Gholamreza Haffari

Multihop ad hoc wireless networks consist of mobile nodes that communicate with each other without any fixed infrastructure. The nodes in these networks are power constrained, since they operate in limited battery energy. Cooperative…

Networking and Internet Architecture · Computer Science 2014-06-23 Preetha Theresa Joy , K. Poulose Jacob

We present the design of an entire on-device system for large-scale urban localization using images. The proposed design integrates compact image retrieval and 2D-3D correspondence search to estimate the location in extensive city regions.…

Computer Vision and Pattern Recognition · Computer Science 2018-12-26 Ngoc-Trung Tran , Dang-Khoa Le Tan , Anh-Dzung Doan , Thanh-Toan Do , Tuan-Anh Bui , Mengxuan Tan , Ngai-Man Cheung

Routing in mobile ad hoc networks (MANETs) presents a big challenge, especially when support for a large number of nodes is needed. This paper extends the local visibility concept of the recent DHT-based URBAN_XOR routing protocol, which…

Networking and Internet Architecture · Computer Science 2016-04-20 Anatoliy Zinovyev , Brian L. Mark

Understanding of the mechanisms driving our daily face-to-face encounters is still limited; the field lacks large-scale datasets describing both individual behaviors and their collective interactions. However, here, with the help of travel…

Physics and Society · Physics 2013-08-07 Lijun Sun , Kay W. Axhausen , Der-Horng Lee , Xianfeng Huang

We introduce hierarchical neighbor graphs, a new architecture for connecting ad hoc wireless nodes distributed in a plane. The structure has the flavor of hierarchical clustering and requires only local knowledge and minimal computation at…

Networking and Internet Architecture · Computer Science 2015-09-30 Amitabha Bagchi , Adit Madan , Achal Premi

Grid superscheduling requires support for efficient and scalable discovery of resources. Resource discovery activities involve searching for the appropriate resource types that match the user's job requirements. To accomplish this goal, a…

Networking and Internet Architecture · Computer Science 2007-05-23 Rajiv Ranjan , Aaron Harwood , Rajkumar Buyya

Large tree structures are ubiquitous and real-world relational datasets often have information associated with nodes (e.g., labels or other attributes) and edges (e.g., weights or distances) that need to be communicated to the viewers. Yet,…

Computational Geometry · Computer Science 2023-05-18 Kathryn Gray , Mingwei Li , Reyan Ahmed , Md. Khaledur Rahman , Ariful Azad , Stephen Kobourov , Katy Börner

Complex networks can be used for modeling street meshes and urban agglomerates. With such a model, many aspects of a city can be investigated to promote a better quality of life to its citizens. Along these lines, this paper proposes a set…

Computational Engineering, Finance, and Science · Computer Science 2018-12-31 Gabriel Spadon , Bruno B. Machado , Danilo M. Eler , Jose Fernando Rodrigues-Jr
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