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Reliable transport of data in wireless sensor networks (WSN) has become a big challenging issue for researcher community in the fast few years. WSNs are currently deployed in a wide range of applications as a sensor is becoming smaller and production cost is smaller. In this paper, we look at the problem of efficient and reliable data transport in WSN. We propose a suitable solution for information delivery in both directions, in upstream (from sensor node to master node - sink) and in downstream (form master node to sensor node). Our proposal ensures a reliable data transport in both directions, with reduced traffic between sensor nodes and sink.