Research Background Wireless Sensor Networks(WSNS a Large collection of small wireless devices with the ability to sense, process, and transmit data Low-end node L-node ow cost solution to distributed applications Milita CiⅤ ilian Limited resources 88=2(: Power 9: Storage Processing H-node Communication Unreliable communication Unattended operation Operate autonomously Heterogerkhousoyaneleas Sisde Nesermsdr NEWSk O Homogeneous or HeterogeneousResearch Background – Wireless Sensor Networks (WSNs) ❑ Large collection of small wireless devices with the ability to sense, process, and transmit data. ➢ Low cost solution to distributed applications • Military • Civilian ➢ Limited resources • Power • Storage • Processing • Communication ➢ Unreliable communication ➢ Unattended operation • Operate autonomously ❑ Homogeneous or Heterogeneous 3 Low-end node (L-node) Homogeneous Wireless Sensor Network H H H High-end node (H-node) Low-end node (L-node) Heterogeneous Wireless Sensor Network (HWSN)