Mejoramiento de un protocolo de sincronización en redes WSN

Abstract

This thesis is a contribution to understand the functioning of wireless sensor networks (WSN) and especially the synchronization protocols that allow maintaining order and coherence in the communication of the network. To simulate a WSN, the first thing is to define the number, type and location of the nodes, by means of a file or in a random way, then the distances and the sum of them are determined to each node, to define the volumetric density of the cloud of nodes. The almost constant spectral density that causes the white Gaussian additive noise, the distance traveled and the frequency determines the losses in the free space; the number of jumps defines the delay in the processing of each node, up to the reference node, then the levels and depths of the HRTS protocol are established. The process is optimized with the volumetric, spectral density, sum of distance, losses and mainly the correction time for the synchronization, as the closest criterion. MatLab is used to process data, achieve better results and optimize processes. At the end a comparison between the original and the optimized protocol is made and the similarities and differences are evaluated.