Akademik Veri Yönetim Sistemi
Life Science Journal, cilt.10, sa.2, ss.39-45, 2013 (SCI-Expanded)
In this paper, Energy Effective-Accuracy Routing (EEAR) protocol is suggested for wireless sensor networks on the basis of energy saving while communication between sensor nodes on the whole network EEAR can conserve energy until keeping communication and routes leading to sink, by data-center gradient diffusion routing protocol. This is realizing by detection and turning on/off radio frequency and other elements of extra sensor nodes. EEAR, which is inspired from combining Gradient-Based Routing (GBR) route finding and Naps topology management protocol while applying both protocols advantages, keeps nearly constant level of routing accuracy with no need to geographic location information. After establishing communicative layers towards the sink while conserving inter-layer communication, this protocol puts extra nodes in sleeping state. In fact, in each layer, a node can go to sleep state by detecting some other nodes that can do communication duty on behalf of that node. Despite conformity with all data delivery models, EEAR produces considerable results in continuous and event-driven models towards query-driven model. In this paper we have implemented EEAR and compared it with some other methods, including GBR, Naps and GAF. Simulation results show that EEAR without requiring position information, performs at least as well as location based protocols in terms of topology control, routing and energy saving, and increases the packet delivery amount and decreases average packet delay.