Abstract
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Since the last two centuries, humanity has made scale steps in this attraction to innovation and technological progress. The emergence of global networks of computers corresponding to Wireless Sensor network WSN is one of those great steps that man could do. WSN is an advanced technology that occur in response to overcome user needs. It resolves many problem such as, controlling phenomena, monitoring places, and diagnostic. Nevertheless, this advanced technology still incomplete in order to different constraints such as energy consumption, routing, aggregated data and security, also routing information represents a critical issue in it. For that, great researches designed. In this paper, we present a survey of GAF and their enhanced versions as Location-Based routing protocols in WSN, which allows reducing the consumed energy in the network and prolonging the network lifetime.
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