A Failure Detection Service for Large-Scale Dependable Wireless Ad-Hoc and Sensor Networks

Author(s):  
Mourad Elhadef ◽  
Azzedine Boukerche
2012 ◽  
Vol 8 (4) ◽  
pp. 186146 ◽  
Author(s):  
Fan Li ◽  
Lei Zhao ◽  
Xiumei Fan ◽  
Yu Wang

Efficient data delivery in vehicular sensor networks is still a challenging research issue. Position-based routing protocols have been proven to be more suitable for dynamic vehicular networks or large-scale mobile sensor networks than traditional ad hoc routing protocols. However, position-based routing assumes that intermediate nodes can always be found to set up an end-to-end connection between the source and the destination; otherwise, it suffers from network partitions which are very common in vehicular networks and leads to poor performances. This paper addresses data delivery challenge in the possible intermittently connected vehicular sensor networks by combining position-based forwarding strategy with store-carry-forward routing scheme from delay tolerant networks. The proposed routing method makes use of vehicle driving direction to determine whether holding or forwarding the packet. Experimental results show that the proposed mechanism outperforms existing position-based solutions in terms of packet delivery ratio.


2012 ◽  
Vol 8 (4) ◽  
pp. 725190 ◽  
Author(s):  
Miguel S. Familiar ◽  
José F. Martínez ◽  
Lourdes López

In the twenty-first century, the impact of wireless and ubiquitous technologies is changing the way people perceive and interact with the physical world. These communication paradigms promise to change and redefine, in a reasonably short period of time, the most common way of our everyday living. The continuous advances in the field of Wireless Sensor Networks and their direct application in Smart Spaces are clear examples of it. However, in order for this kind of new generation infrastructures to have a large-scale dissemination, there are still some open issues to tackle. In this way, this paper presents nSOM, a service-oriented framework based on sensor network design that provides internetworking services with the Internet cloud. This lightweight middleware architecture implements an agent-based virtual sensor service approach which is a compact semantic knowledge management scheme based on a dynamic composition model.


2011 ◽  
Vol 30 (12) ◽  
pp. 3158-3160
Author(s):  
Jia YU ◽  
Ying-you WEN ◽  
Hong ZHAO
Keyword(s):  
Ad Hoc ◽  

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