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In proactive routing protocols (such as OLSR) nodes flood their neighborhood information to the entire network. Every node then constructs a topology map which represents its view of the network. This map is taken as a basis to compute the ??best?? path to the destination. Inaccurate topology information may result in one of the following: a) packets may be sent in a path that no longer exists; b)...
Data aggregation is an essential paradigm for energy efficient routing in energy constraint wireless sensor networks (WSN). Data aggregation in WSN can be treated as searching for the Minimum Steiner Tree (MST) including source nodes and sink node. In this paper, we propose a Data-aggregation Algorithm based on Adaptive Ant Colony System (AACS) algorithm. In this algorithm, Directed Diffusion (DD)...
This paper presents a distributed fermat-point range estimation strategy, which is important in the moving sensor localization applications. The fermat-point is defined as a point which minimizes the sum of distances from three sensors inside a triangle. This point is indeed at the trianglepsilas center of gravity. We solve the problems of large errors and poor performance in the bounding box algorithm...
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