An Extended PEGASIS Protocol Based on Group Authentication with Merkle Tree in WSNs
Wangsheng Fang, Xiangyu Wang, Haomin Xu · Journal of Physics Conference Series · 2019
Abstract With the constant improvement of Wireless Sensor Network, its application scenarios become more diverse. Due to the limited resources of sensor nodes, there are many researches devoted to the optimization of network structure and the prolongation of network life. The proposed extended protocol is based on the chain-based routing technique of PEGASIS. In a newly deployed network, intra-group trust is formed through the Group Authentication based on Merkle Tree, which can protect the node information and resist the deception of false message. In the steady phase, the whole network re-chain is replaced by re-chain within the group when any node dies. Simulation results show that the scheme proposed in this paper has obvious improvement in terms of residual energy and network life compared with PEGASIS.