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This paper is to develop data collection mechanisms in multi-hop IEEE 802.15.4e Time Slotted Channel Hopping (TSCH) networks. While scheduling, transmission link selection is considered based on the limitations of transmission conflict and transmission interference in ZigBee network topologies. Three scheduling algorithms for data collection are proposed. Furthermore, experiments are made for evaluating...
Most of the recent research on Object Tracking Sensor Networks has focused on collecting all data from the entire sensor network and placing it into the sink, which delivers the predicted locations to the corresponding nodes in order to predict an object's movement. This collection method affects the freshness of the data and creates latency in predicting movement patterns. In addition, due to the...
A novel data-collecting algorithm using a mobile robot to acquire sensed data from a wireless sensor network (WSN) that possesses partitioned/islanded WSNs is proposed in this paper. This algorithm permits the improvement of data-collecting performance by the base station by identifying the locations of partitioned/islanded WSNs and navigating a mobile robot to the desired location. To identify the...
The subject of acquiring sensed data with the aid of a mobile collector from a wireless sensor network (WSN) that possesses partitioned/islanded WSNs is investigated. The battery depletion of sensor nodes can lead to partitioned/islanded WSNs; as a result, the base station collects merely somewhat sensed data while data routing difficulty arisen. To ease the effect of partitioned or islanded WSNs,...
This paper presents a novel Virtual Circle Combined Straight Routing (VCCSR) algorithm for a mobile sink to collect data in wireless sensor networks. Tree-based routing is a common scheme to collect data from sensors to a sink. Most of the previous proposed tree-like aggregation approaches are not suitable for mobile sink, because the routes between sink and sensors have to be reconstructed when a...
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