能量控制的WSN寿命阶段性特征

The moment of longevity of WSN under the control of energy

通过对无线传感网络的能量控制可以决定网络寿命,但不同的网络拓扑对应的网络寿命是不相同的。网络的前期、稳定期、后期的三生存期里,网络拓扑表现出明显不同特征,而这不同的时期具有特定的状态,分别为预期寿命的～10%、～80%、～90%出现。分析与实验指出无线传感网络后期特征是影响网络QOS的主要阶段,并据此提出了相应算法保证QOS。

The power control of WSN（Wireless Sensor Network） can determine the longevity of network. But different network topologies have different network longevities By experimentation and simulation , it is found that network has three lively phrases-prophase, stabilization and anaphase, corresponding with 10% 、 80% and 90% of the whole longevity respectively, and in which the topologies put up different characters. The conclusion is also pointed out in this paper that the anaphase of network is the most important moment, and a correspondence arithmetic to ensure QOS （Quality of Service ） is put forward. The simulation hold out this arithmetic.