Abstract
An efficient use of energy is a challenging task in battery-constrained WSN. Cooperative-MIMO (CMIMO) where the nodes cooperatively transmit data packets to the base station (BS) is an efficient way that leads to huge energy savings. But still there exists a problem of selection of receiver node by the multiple transmitters. This can be overcome by using an effective selection strategy which ensures end-to-end connectivity as well as lifetime enhancement. In this paper, an Event-driven data transmission Routing Protocol (EDTRP) is proposed for routing and central node (CN) selection. In EDTRP, only the nodes which detect an event are involved in the communication process. If the data sensed by the individual node is above a threshold value of the particular physical attribute in concern, then only the transmitter of that node is switched on. This avoids unnecessary data transmission leading to energy savings. The proposed work shows a significant improvement when compared to the non-cooperative-MIMO scheme such as LEACH and Improved Vice-LEACH (V-LEACH). EDTRP shows an improvement of almost 211% compared to LEACH and 171.30% compared to Improved V-LEACH in terms of half-lifetime.
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