Tham khảo tài liệu 'recent advances in wireless communications and networks part 12', kỹ thuật - công nghệ, cơ khí - chế tạo máy phục vụ nhu cầu học tập, nghiên cứu và làm việc hiệu quả | Table 17. continues Major theoretical aspects of some major energy efficient protocols for WSNs . Energy Efficient Protocol Major Theoretical Aspects 4. H-HEED Heterogeneous - HEED Kour Sharma 2010 A protocol for heterogeneous WSN. Cluster head selection is primarily based on the residual energy of each node. Since the energy consumed per bit for sensing processing and communication is typically known and hence residual energy can be estimated. Intra cluster communication cost is considered as the secondary parameter to break the ties tie means that a node might fall within the range of more than one cluster head. Different level of heterogeneity is introduced 2-level 3-level and multi-level in terms of the node energy. In 2-level H-HEED two types of sensor nodes . the advanced nodes and normal nodes are used. In 3-level H-HEED three types of sensor nodes . the super nodes advanced nodes and normal nodes are used. In this heterogeneous approach all the sensor nodes are having different energy as a result nodes will die randomly. Multi-level H-HEED prolongs lifetime and shows better performance than other level of H-HEED and HEED protocol. 5. Reactive Energy Decision Routing Protocol REDRP Ying- Hong et al. 2006 To solve the problem of limited energy the loading of nodes have to be distributed as possible as it can. If the energy consumption can be shared averagely by most nodes then the lifetime of sensor networks will be enlarged. This protocol will create the routes in reactive routing method to transmit the data node gathered. It uses the residual energy of nodes as the routing decision for energy-aware. 6. PEGASIS Power-Efficient Gathering in Sensor Informa ti on Systems Lindsey Raghavendra 2002 A near optimal chain-based protocol and an enhanced descendant of LEACH. It has two main objectives increases the lifetime of each node by using collaborative techniques and allow only local coordination between nodes that are close together so that the .
