Abstract
Underwater Sensor Networks (UWSNs) are deployed to monitor various phenomena in marine environment such as pollution control, fuel exploration and underwater seismic activities. Various challenges such as, limited and non-replaceable batteries in sensor nodes, high path loss and high propagation delay exist for UWSNs, to name a few. Successful design deployment of an energy efficient routing scheme is an intense need of the day for successful operation of UWSNs. In this paper we have presented an energy efficient routing protocol by the name of Energy Harvesting Intelligent Relay Selection Protocol (EH-IRSP). The scheme uses task-specific energy harvested relay nodes using piezoelectric technique utilizing dynamic transmission radius incorporated in all sensor nodes. EH-IRSP protocol is compared with existing UWSNs protocols Cooperative UWSN (Co-UWSN) and Energy Harvested Analytical approach towards Reliability with Cooperation for Underwater WSNs (EH-ARCUN). The Co-UWSN focuses on strengthening the sound-to-noise ratio on the minimum distance communication channel in order to reduce the path loss. The EH-ARCUN scheme selects relay nodes based on energy harvesting level in combination with Amplify and Forward (AF) technique. The proposed scheme employs a Euclidean distance between the source-destination and source-relay nodes pairs. Each source node selects the most feasible energy harvested relay node by computing cosine of the angles between itself, relay node, and destination nodes and sends the data using cooperative communication. Based on these computed parameters, each source node adjusts its transmission radius hence conserving energy. Performance parameters for this comparison are based on stability period, packet delivery ratio, end-to-end delay and path loss. Simulation results show enhanced performance of proposed scheme EH-IRSP in contrast to Co-UWSN and EH-ARCUN.
Highlights
Underwater sensor nodes and vehicles should possess selfconfiguration capabilities, i.e., they should be able to coordinate their operation by exchanging configuration, location and movement information, and to relay monitored data to an onshore station
When source node does not find any energy harvesting relay node it directly sends data towards destination node d in its immediate neighborhood table of neighboring nodes with minimum transmission range, Co-Underwater Sensor Networks (UWSNs) and EH-ARCUN do not exhibit this behavior which results in more energy consumption of sensor nodes
The improvement in path loss for Energy Harvesting Intelligent Relay Selection Protocol (EH-IRSP) suggests the efficient working of a passive sonar equation [19] in deep waters for EH-IRSP as compared to Monterey-Miami Parabolic Equation [24] employed in EH-ARCUN
Summary
Underwater sensor nodes and vehicles should possess selfconfiguration capabilities, i.e., they should be able to coordinate their operation by exchanging configuration, location and movement information, and to relay monitored data to an onshore station. For balancing energy consumption of a network, data transmission load is divided among all the sensor nodes. Several protocols in this regard have been proposed as in [1]–[4]. In this paper we have proposed a novel energy harvesting based protocol namely EH-IRSP (Energy Harvesting based Intelligent Relay Selection Protocol) In this protocol, a source node s can select at most two energy harvesting capable relay nodes in order to forward a data towards the destination node. The source node can dynamically adjust the communication radius resulting into more balanced energy consumption as well as enhancing the overall network lifetime by using special energy harvesting relay nodes.
Sign-in/Register to view highlights & summary Sign-in/Register to access full text options 
Free) 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a call
