Learn More
—The choice of a routing protocol in a wireless sensor network (WSN) depends on the nature of the application and on its primary mission. Lot of works addressed the problem of routing mechanisms with more or less effectiveness, some of which pointed out the use of the link quality indicator (LQI) as a route selection criterion (metric). In a previous work,(More)
In WSN, it is not often desirable to use the GPS technology. Indeed, the use of GPS is expensive and may reduce the overall network performance. Moreover, indoor reception of the GPS signal is not possible. The Link Quality Indicator (LQI) is defined in the 802.15.4 standard, but its context of use is not specified in this standard. Some works on the LQI,(More)
In this paper, we propose two database updating models for homogeneous and auto configurable sensor network deployed in a truck without base station. In the first model, a Virtual Base Station (VBS) is periodically elected to act as classical base station for a given period of time. VBS election algorithm is based on the remaining energy level of each node(More)
A large Ad Hoc network can be represented as several sets of clusters. Each cluster contains one or more nodes and has its clusterhead (or caryomme) chosen following an election based on an appropriate criterion. The clustering in wireless networking adds scalability, reduces the computation complexity of routing protocols, allows data aggregation and then(More)
—In a classical wireless sensor network, endowed with typical hardware features, especially with high energy level and good stockpiling capabilities, the base station completes the architecture as a required component for a wide range of applications. However, there are some projects where base station deployment should be avoided without reducing network(More)
  • 1