OPPORTUNISTIC VOID AVOIDANCE ROUTING PROTOCOL FOR UNDERWATER SENSOR NETWORKS
Abstract
Opportunistic void avoidance routing (OVAR) protocol has been proposed for UWSNs. It
is an any cast, geographic and opportunistic routing protocol. OVAR switches to the recovery mode procedure which is based on topology control through the depth adjustment of the void nodes, instead of the traditional approaches using control messages to discover and maintain routing paths along void regions. Increasing attention has recently been devoted to underwater sensor networks (UWSNs) because of their capabilities in the ocean monitoring and resource discovery. UWSNs are faced with different challenges, the most notable of which is perhaps how to efficiently deliver packets taking into account all of the constraints of the available acoustic communication channel.. The unique features of OVAR in selecting the candidate nodes in the vicinity of each other leads to the resolution of the hidden node problem. The results of our extensive simulation study show that OVAR outperforms other protocols in terms of the packet delivery ratio, energy consumption, end-to-end delay, hop count and traversed distance.
Author
R.Sathiyapriya ,
M.Latha,
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