Mahmuda Naznin

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In an orthogonal drawing of a plane graph each vertex is drawn as a point and each edge is drawn as a sequence of vertical and horizontal line segments. A bend is a point at which the drawing of an edge changes its direction. Every plane graph of the maximum degree at most four has an orthogonal drawing, but may need bends. A simple necessary and sufficient(More)
Network lifetime is one of the important metrics that indicate the performance of a sensor network. Different techniques are used to elongate network lifetime. Among them, clustering is one of the popular techniques. LEACH (Low-Energy Adaptive Clustering Hierarchy) is one of the most widely cited clustering solutions due to its simplicity and effectiveness.(More)
—Event detection and notification is a common task in a Wireless Sensor Networks (WSN). Efficient data aggregation and the minimization of energy consumption are the great research challenges in WSN. In WSN, normally the events are detected by more than one node and it is more reliable if the consistent event information is received from more than one node.(More)
Stability is one of the major concerns in advancement of Wireless Sensor Networks (WSN). A number of applications of WSN require guaranteed sensing, coverage and connectivity throughout its operational period. Death of the first node might cause instability in the network. Therefore, all of the sensor nodes in the network must be alive to achieve the goal(More)
In this work, we present a path-planning method for the Mobile Data Collector (MDC) in a wireless sensor network (WSN). In our method, a tour for the M DC is generated such that the latency of delivering data to the sink is reduced. We show that the TSP tour covers all the nodes of the WSN. However, the latency for the TSP tour may be prohibitively high for(More)
An overlay based ID assignment can facilitate a Wireless Sensor Network (WSN) with low tost and less time consuming look-up or event detection mechanism. In our paper, we present an efficient distributed sensor node look-up mechanism which assigns unique ID to the network nodes considering the physical proximity and ultimately this mechanism provides the(More)
Under water wireless sensing (UWSN) system is more challenging due to the replacement difficulty of underwater sensors. A mobile target tracking protocol in UWSNs must have energy saving strategy. In our research, we propose local search based energy saving tracking method for an UWSN where we use a meta-heuristic based algorithm by keeping the minimum(More)