Scalable Data Dissemination for Inter-Vehicle-Communication: Aggregation versus Peer-to-Peer (Skalierbare Informationsverbreitung für die Fahrzeug-Fahrzeug-Kommunikation: Aggregation versus Peer-to-Peer)

2008 ◽  
Vol 50 (4) ◽  
Author(s):  
Christian Lochert ◽  
Jedrzej Rybicki ◽  
Björn Scheuermann ◽  
Martin Mauve
Keyword(s):  
Information Systems ◽  
Data Dissemination ◽  
Peer To Peer ◽  
Traffic Information ◽  
Large Area ◽  
Direct Communication ◽  
Client Server ◽  
Vehicle Communication ◽  
Advantages And Disadvantages ◽  
Peer To Peer Systems

SummaryThis paper investigates the scalable dissemination of data between vehicles. The application context of this work is traffic information systems where cars are not only consumers but also producers of information. The key challenge in those systems is to ensure scalability in an environment where data is provided and requested by all participating vehicles in a large area. We discuss two fundamentally different approaches to this problem: using direct communication between cars and compressing the data via aggregation versus relying on infrastructure. The latter approach can further be divided into client-server and peer-to-peer systems. We outline all three approaches and highlight their advantages and disadvantages.

scholarly journals Improve the performance of peer-to-peer networks within publish/ subscribe systems by using PeerSim simulator within Eclipse Environment: تحسين أداء شبكات الند للند ضمن أنظمة النشر والاشتراك باستخدام محاكي Peersim ضمن بيئة Eclipse

2019 ◽  
Vol 3 (4) ◽  
Author(s):  
Wael Abdulkarim Habeeb, Abdulkarim Assalem
Keyword(s):  
Social Networking Sites ◽  
Large Scale ◽  
Process Management ◽  
Data Dissemination ◽  
Peer To Peer ◽  
Large Area ◽  
Original Design ◽  
User Interests ◽  
Network Bandwidth ◽  
Peer To Peer Systems

  Publish/ subscribe (pub/ sub) is a popular communication paradigm in the design of large-scale distributed systems. We are witnessing an increasingly widespread use of pub/ sub for a wide array of applications in industry, academia, financial data dissemination, business process management and does not end in social networking sites which takes a large area of user interests and used network bandwidth. Social network interactions have grown exponentially in recent years to the order of billions of notifications generated by millions of users every day. So, it has become very important to access in the field of publishing and subscription networks, especially peer-to-peer (P2P) networks in many ways like the publication speed for events And the percentage of loss in the incoming events of the participants. Peer-to-peer systems can be very large and include millions of nodes, those nodes join and leave the network continuously, and these characteristics are difficult to handle. The evaluation of a new protocol in a real environment, particularly in the early stages, was considered impractical. Hence the need for a simulator to perform such a function to facilitate the simulation of researchers and this emulator is an open source simulator running within the Eclipse environment. In this research we have adopted a new method of selecting nodes within the table of vicinity protocol. This method is concentrated in that the far node increases the probability of its inclusion in the table more than the adjacent node. and The proposed network that uses the Polder Cast protocol was modelled using PeerSim software for modelling deployment and subscription networks within the eclipse environment so that the event delivery service is a Peer-2-Peer network and the method used to register is subject-based (Topic-Based). experimental results showed noticeable improvement in the publication speed for events by 51.11% compared to the original design of the protocol. And The percentage of event loss was reduced by 20%.    

Fair and adaptive data dissemination for Traffic Information Systems

2012 ◽  
Author(s):  
Ramon S. Schwartz ◽  
Anthony E. Ohazulike ◽  
Christoph Sommer ◽  
Hans Scholten ◽  
Falko Dressler ◽  
...  
Keyword(s):  
Information Systems ◽  
Data Dissemination ◽  
Traffic Information

AutoCast: An Adaptive Data Dissemination Protocol for Traffic Information Systems

2007 ◽  
Author(s):  
Axel Wegener ◽  
Horst Hellbruck ◽  
Stefan Fischer ◽  
Christiane Schmidt ◽  
Sandor Fekete
Keyword(s):  
Information Systems ◽  
Data Dissemination ◽  
Traffic Information

On the applicability of fair and adaptive data dissemination in traffic information systems

2014 ◽  
Vol 13 ◽  
pp. 428-443 ◽  
Author(s):  
Ramon S. Schwartz ◽  
Anthony E. Ohazulike ◽  
Christoph Sommer ◽  
Hans Scholten ◽  
Falko Dressler ◽  
...  
Keyword(s):  
Information Systems ◽  
Data Dissemination ◽  
Traffic Information

Peer-to-peer data structures for cooperative traffic information systems

2012 ◽  
Vol 8 (2) ◽  
pp. 194-209 ◽  
Author(s):  
Jedrzej Rybicki ◽  
Björn Scheuermann ◽  
Martin Mauve
Keyword(s):  
Information Systems ◽  
Data Structures ◽  
Peer To Peer ◽  
Traffic Information

Integrating Legacy Laboratory Information Systems into a Client-Server World: The University of Minnesota Clinical Workstation (CWS) Project

1995 ◽  
Vol 34 (03) ◽  
pp. 289-296 ◽  
Author(s):  
B. H. Sielaff ◽  
D. P. Connelly ◽  
K. E. Willard
Keyword(s):  
Information Systems ◽  
Clinical Decision ◽  
Database Management System ◽  
University Of Minnesota ◽  
Client Server ◽  
Clinical Workstation ◽  
Future Hospital ◽  
The Cost ◽  
The University ◽  
Laboratory Information Systems

Abstract:The development of an innovative clinical decision-support project such as the University of Minnesota’s Clinical Workstation initiative mandates the use of modern client-server network architectures. Preexisting conventional laboratory information systems (LIS) cannot be quickly replaced with client-server equivalents because of the cost and relative unavailability of such systems. Thus, embedding strategies that effectively integrate legacy information systems are needed. Our strategy led to the adoption of a multi-layered connection architecture that provides a data feed from our existing LIS to a new network-based relational database management system. By careful design, we maximize the use of open standards in our layered connection structure to provide data, requisition, or event messaging in several formats. Each layer is optimized to provide needed services to existing hospital clients and is well positioned to support future hospital network clients.

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