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Time Synchronization in WSN is a well-researched topic. But there are very few algorithms which have been proven to be scalable and efficient on a hardware platform. We consider cluster-based network and try to improve the efficiency of the existing algorithms. Our algorithm called as Simple Algorithm for Time Synchronization (SATS) is based on an existing receiver-sender synchronization algorithm...
Scenarios where the sensor nodes themselves are mobile, introduces a new dimension of problems in sensor network. This paper presents a mobility vector based neighbour selection for a mixed deployment of mobile and static Wireless Sensor Network. The proposed approach uses the velocity of the mobile node and the residual energy of the static node to select a neighbour. Multichannel based MAC protocol...
Streaming multimedia data in WSN is a challenge due to constraints such as bandwidth, energy and delay. Moreover, it is not economical to have multimedia sensors integrated with static nodes in the field. In this paper, we propose the use of mobile sensor nodes, which are equipped with multimedia sensors for event monitoring. These mobile entities are capable of streaming high bandwidth data by splitting...
Three Dimensional (3-D) Underwater Acoustic Sensor Network (UASN) can be used to detect and observe ocean environment using co-operative and distributed sampling. We are proposing a multi-level clustering topology for ocean column monitoring application. A simple Cluster-Based TDMA MAC (CB-TDMA) protocol is simulated on this network using SUNSET platform developed by SENSES lab, Sapienza University,...
Area exploration in WSN is used for a multitude of applications from data collection to network maintenance. In this paper, we propose a new approach - Max-Gain approach to explore an area with obstacles by modifying the utility function of frontier-based approach. The proposed approach moves the mobile nodes to a distant unexplored optimal position rather than directing it to a near frontier. The...
Underwater Acoustic Sensor Network (UASN) has become increasingly important, with numerous applications emerging from various areas such as commercial, environmental-research and defense. This paper provides a comprehensive view of current state-of-the-art in UASN by analyzing the research done by various communities. It briefly states the basics of underwater acoustic communication and cites advances...
Wireless sensor networks, whether terrestrial or underwater, usually contain hundreds or in some cases thousands of micro-sensor nodes, that are randomly and densely deployed. In this paper we propose a clustering algorithm based on the geographical location of the sensor nodes for a 3-D hierarchical network architecture called LCAD. An energy model has been proposed and used to analyze the performance...
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