Abstract
In this paper, we propose an effective mobile sensor control method, named DATFM (Data Acquisition and Transmission with Fixed and Mobile node) for sparse sensor networks. DATFM uses two types of sensor nodes, fixed node and mobile node. The data acquired by nodes are accumulated on a fixed node before being transferred to the sink node. In addition, DATFM transfers the accumulated data efficiently by constructing a communication route of multiple mobile nodes between fixed nodes. We also conduct simulation experiments to evaluate the performance of DATFM.
Highlights
Recent advances in wireless communication technologies have led to an increasing interest in ad hoc networks that are constructed of only wireless terminals that play the role of a router
We propose DATFM (Data Acquisition and Transmission with Fixed and Mobile node), which is an effective mobile sensor control method for sparse sensor networks to improve the efficiency of sensing and data transfer
Transmission mode (TM): When a node in Sensing mode (SM) receives a route construction request packet (RCReq) from a fixed node or a mobile node in Collecting mode (CM), it changes its mode into transmission mode (TM).In TM, a node constructs a route and transfers the data
Summary
Recent advances in wireless communication technologies have led to an increasing interest in ad hoc networks that are constructed of only wireless terminals that play the role of a router. Due to the ability to construct a large-scale sensing system by cooperative behaviors of multiple sensor nodes, sensor networks are expected to be applied to many applications such as environmental monitoring, investigation of ecological system and building management In these areas there are some applications where it is difficult to deploy a large number of sensor nodes such as disaster sites, planetary exploration, polluted areas and underwater [1,2,3]. In such environments, the deployment of sensor nodes becomes too sparse to achieve sufficient sensing and data transfer. We propose DATFM (Data Acquisition and Transmission with Fixed and Mobile node), which is an effective mobile sensor control method for sparse sensor networks to improve the efficiency of sensing and data transfer.
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