A link-adding strategy for improving robustness and traffic capacity in large-scale wireless sensor networks

In this research, a new link-adding strategy (LLA) was proposed for large-scale wireless sensor networks (WSNs). It can enhance the network robustness and traffic capacity. Different from the previous link-adding strategies, local world theory is considered of LLA for better match the WSNs. Considering the transmission characteristics and energy consumption mechanism in WSNs, LLA is to use the relative position relationship and set division, establish the new link-adding strategy. In addition, for regulating some extreme cases in previous strategy, tunable parameters are introduced in LLA. In particularly, specific and classic experiments about Rc, APL and ASHS, are used to demonstrate the effectiveness of the innovation. Simulation results show that LLA gets a better network robustness and stays a high traffic capacity compared with the previous strategies, e.g., IE strategy and LBF strategy. This work is helpful for designing the large-scale WSNs with more practice.