Improved energy-efficient chain-based routing protocol for edge-based wireless sensor networks

Wireless sensor networks (WSNs) are made up of large number of sensor nodes with restricted power resources and storage capacity. As it is necessary to utilize the limited power of each node very efficiently. Therefore it is essential to design an improved chain-based routing protocol for enhancing the lifetime of the network. Among all the existing routing protocols, chain-based routing is one of the most suitable routing method, but there are still some drawbacks like that redundant (detour) transmission and propagation delay are concord with existing schemes presented in literature. To overcome this problem, in this paper we propose a new chain based routing protocol called improved chain-based routing protocol for edge-based WSN (improved CHIRON). In existing CHIRON, area of all groups are not same and group's area increases with moving away from base station (BS). So that the farthest group having longer chain length as compare to nearest group. This will produce larger delay in data propagation between sensor nodes and base station. In our proposed approach the network model is designed such that the groups which are farthest from base station has same chain length like nearest groups therefore data propagation delay becomes less in our proposed approach and overall network lifetime is improved. In this paper we discussed the network model of our proposed protocol for distributing the load of whole network uniformly, we divide the network region into smaller group areas of equal sizes.