LAUSR

Recently, underwater wireless sensor network (UWSN) has paved the way for researchers towards a new era of exploring ocean realm targeting envisioned landscape of underwater applications. These applications can be made viable through underwater communication by using acoustic waves, giving rise to several design challenges like limited bandwidth, large and variable propagation delay, frequent connectivity loss, etc. Reliable data delivery in UWSN is always a tempting issue to be addressed, which is jeopardised by link failures and communication void. Under this context, Link failure Avoidance and Void Recovery (LAVR) routing protocol is proposed that uses link quality as forwarding factor, computed using Triangle Metric, to achieve reliability. A void node recovery procedure is proposed to displace the void node to a new depth to increase the packet delivery ratio. Simulations are performed in Aqua-Sim simulator and LAVR outperforms other existing protocols in terms of packet delivery ratio and network lifetime.