Wireless Sensor networks (WSNs) are being used widely in the data to day life of human. Sensor network is a collection of tiny sensors connected through different Wireless medium. The main aim of sensor networks is to monitor and control of physical environments from remote locations with better accuracy. WSNs are having a wide range of applications areas such as military battle fields, environmental monitoring, health monitoring sensors in network monitor the surroundings by sensing, gather the data and forwards to sink node. To do these there should be a reliable transport mechanism. But in WSN reliable transport is severe problem influenced by the various layers of protocol stack such as physical, MAC, network, and transport layers. Since the WSN are lack of resources like battery power, bandwidth and other there is problem in providing reliability. In this paper presents an analytical scheme for implementing reliable data transport in WSNs with some recommendations, we present RMST (Reliable Multi-Segment Transport), a new transport layer for Directed Diffusion to achieve reliability at the transport layer.Keywords: RMST (Reliable Multi-Segment Transport), Wireless Sensor networks (WSNs), Automatic Repeat Request (ARQ), Sensor Network Adhoc Protocol Platform (SNAPP)
