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The main goal of Cluster-based sensor networks is to decrease system delay and reduce energy consumption. LEACH is a cluster-based protocol for micro sensor networks which achieves energy-efficient, scalable routing and fair media access for sensor nodes. However, the election of a malicious or compromised sensor node as the cluster head is one the most(More)
Most Ad Hoc networks use communications based on diffusion that are typically expensive and may cause network saturation. In order to optimize these communications, one approach is to structure networks into clusters. In this paper, we present a self-stabilizing asynchronous distributed algorithm that builds non-overlapping k-hops clusters. Our approach(More)
In this document, we study the construction of codes LDPC quasi cyclic based on a protograph. In addition to their large perimeters, the presented codes take profit from the advantages of bass coding and decoding complexity. The aim of this article is to make an improvement on the implementation of quasi-cyclic LDPC codes. Thus to respect the structure of(More)
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