Review on Data Dissemination over Wireless Sensor Networks
نویسنده
چکیده
Wireless Sensor Networks (WSN) consists of large number sensor nodes. The sensor nodes are battery powered devices, they communicate over a wireless medium and consumes energy during data transmission. The main task in WSN is to reduce power consumption of sensor nodes. It’s possible to minimize power consumption in WSN by reducing data dissemination. In WSN sink sends the queries to sensor nodes. Sensor nodes collect the data about queries and send back to sink. Cooperative caching reduces the situations like non availability of data, energy consumption, by storing the event information in the cache memory of nodes. To make data access faster utilize the benefits of caching because in WSN sensor nodes consume less power during processing as compare to data transmission. This paper propose a data dissemination protocol for periodic data updates in wireless sensor networks, which attempts to save energy through data delivery path sharing among multiple sinks that have common interests. Hence it improved the lifetime of sensor
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