Research on energy hole based on PMRC in WSN
WSN中PMRC模型能量洞问题的解决策略研究

In view of the energy hole problem on PMRC, this paper proposed a new strategy named DP strategy which could effectively balance energy consumption. Introducing dynamic duty cycle protocol, DP strategy assigned different duty cycle for nodes at different distances from sink, which made it possible to balance the inner nodes energy consumption and extended the network existent periods without sacrificing end-to-end delay. The results of simulation on OMNet++ show that compared with the original strategy, DP strategy improves a lot in energy efficiency and network lifetime.