Improving the Performance of Wireless Sensor Network with Adaptive Speed Mobile Sink
Keywords:
wireless sensor networks, mobile sink, end to end delay, packet reception ratioAbstract
In wireless sensor networks, data is collected from sensor nodes, that sense the changes in the environment, by a sink node that can be fixed or mobile. Wireless sensor networks with a mobile sink node offer important advantages compared to their counterpart with a fixed sink node, such as: prolonging network lifetime , reducing data collection delay and increasing packet reception ratio (throughput). in some applications, the sink node path is fixed and its speed is also constant, and due to the slow and steady sink node movement, we had a problem of delay in collecting data that could be important data, in addition to increasing the probability of dropped packets.
In this study we will propose an algorithm to make the sink node speed is adaptive, where we will find the highest boundary speed that allows the sink node to pass through the subnet and connect with the sensor node and exchange a packet of data, which will reduce the delay in its collection. we will also make the sink node speed faster as it moves to a node that has important data, which will also reduce the delay in collecting this data and increase the rate of receiving packets.
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