Research On Routing Protocol Of Woreless Sensor Notwork

In the paper, after analyzing the representative routing protocols of wireless sensor networks, the new routing protocol SPINHE(Sensor protocol for information via negotiation based on the number of hops and energy)is brought forward and another new routing protocol SPBT(Sensor protocol based on routing table) witch adopts the routing table is also brought forward.Because of the problem that the route of transmitting data in SPIN is not optimized and is only guided by the number of energy and interesting, the energy is wasted too much, the delay is too long and the data can not be transmitted to the sink node sometimes in SPIN. In the paper, the new protocol SPINHE adopts the minimum of hops to guide the route of transmitting data, and the strategy of optimizing route is also adopted. As a result, the equilibrium of using energy is improved, the energy can be used more availably, the delay is shorted, and the problem that the data can not be transmitted to the sink node sometimes is also solved.According to the problem that in the process of the transmitting data in the protocol for information via negotiation, the source of sending data and receiving data is frequent and the delay is too long. In the paper, the new protocol SPBT uses routing table to predigest the course of transmitting data and adopts the strategy of optimizing route,as a result, the validity and the equilibrium of using energy are improved, and the delay is shorted. It also adopts the strategy of trace to improve the reliability of transmitting data.Through simulation and compare using OMNET++, the results show that in SPINHE, the equilibrium of using energy is better than in SPIN, the energy is economized about 24% and the delay is shortened about 28%, and in SPBT, the equilibrium of using energy is better than in SPIN, the energy is economized about 24%, and the delay is shortened about 36%.