基于最小节点度的WSNs传输功率控制重编程协议

Reprogramming protocol of WSNs with transmission power control based on minimum node degree

为了降低节点能耗,提高能量的利用率,提出了一种高效节能的基于最小节点度的传输功率控制(MND—TPC)重编程协议。该协议首先根据每个节点的剩余能量、最大的传输功率、节点度和链路质量来进行网络的初始化,然后分2个阶段完成数据传输。第一阶段通过节点密度、节点度和M度节点的百分比等产生传输范围的调整模型来构建高效的优化网络;第二阶段通过对节点之间发送功率和剩余能量的比较来筛选发送节点,以保证网络负载的均匀分布,有效地实现了高效节能,从而提高整个网络的生存周期。理论分析与实验结果表明:与多跳网络编程(MNP)协议在不同发送功率下相比,平均能量消耗至少降低35.48%。

In order to reduce energy consumption of nodes and improve energy utilization, a reprogramming protocol based on the minimum node degree transmission power control（MND-TPC） ,which has a highly efficient energy-saving with the minimum node degree, is presented. Firstly, the protocol initialize the network considering the rest energy and maximum transmission power of each node, besides node degree and link quality, then, the process of data-transmission is departed into two stages. During the first stage, through node density, node degree, and percentage of M-degree nodes and another factors, to generate adjustment model of transmission range, as a result,high efficient optimized network can be built; in the second stage,the network choose the delivery node by comparing transmission power and remaining energy, to ensure uniform distribution of load of network and effective implementation of energy-efficient, thus prolong the life cycle of the whole network. Theoretical analysis and experimental results show that comparing with MNP protocol, the proposed protocol can reduce the energy consumption at least 35.48 % in average under different transmission power.