Wireless Sensor Network with MIHOP technique & Mobile Sink

Abstract

Various radio applications in wireless sensor network where sensor nod es operate on batteries so that energy consumption must be minimized while satisfying given throughput and delay requirements . A major portion of the energy expenditure is when the nodes close to the sensor network gateways used for data collection typical ly suffer a large overhead as these nodes must relay on data from the remaining network. In this paper we discuss various existing energy efficient schemes for WSN and one new method to achieve efficiency , is proposed. The MIHOP (MIMO and Multi - hop) meth od combines cluster - based virtual MIMO and multi - hop technologies. The multi hop mode is employed in transmitting data when the related sensors are located within a specific number of hops from the sink, and the virtual MIMO mode is used in transmitting da ta from the remaining sensor nodes. A controllable mobile sink that reduces the energy consumed in sensor transmission is also adopted fo r data collection.