Hybrid Routing Algorithm of Wireless Grain Depot Surveillance System
Anding Zhu · Chuangan jishu xuebao · 2010
The sensor nodes of a wireless grain depot surveillance system are deployed in crystal grids,which provide lot of valid position information.To avoid the energy consumption unbalance of the single hop routing adopted by LEACH protocol,a hybrid routing algorithm with O(n)time complexity is proposed.Multi-hop routing is introduced into the distant field nodes which are farther than mean energy consumption distance.Mean energy consumption and minimum transmitting energy consumption are used as thresholds for selecting transmitting nodes to minimize total variance of node's energy consumption,so that the whole network balances.Simulations show that the hybrid algorithm eliminates hot spots within cluster and prolong the lifetime of WSN.