Triangular metric based routing protocol for underwater wireless sensor network

Underwater Sensor Networks (USN) has a wide range of aquatic application that is totally different from terrestrial sensor network. The nodes of USN has a peculiar character tics like float mobility, limited bandwidth and energy, signal and link quality, routing challenges and its cost and high error probability. This nature if USN degrades the performance in terms of throughput and lifetime. This paper presents the link quality, routing path issue built on depth based routing techniques to overcome the shortages in the existing work. Triangular metric based routing is a geometric combination of Packet Reception Probability(PRP), Signal to Noise Ratio (SNR) and Link Quality Indication (LQI) that is used to select the next forwarding node with reliability, which in turn reduces the routing cost. moreover it makes the very less energy consumption and improves the network lifetime. This method overcomes the unnecessary overlapping and repairs the link failure during network operation. The simulation results show that the proposed work reduce the cost of the route, improve the network lifetime by consuming less energy.