Energy-Efficient Dimensioning with Traffic Engineering for Municipal Mesh Access Networks
We target energy efficiency of municipal access networks. A municipal access network typically provides coverage for city-wide area, and is characterized by diverse and dynamic traffic profiles. Most existing approaches to energy savings adapt network state to traffic variation. However, these approaches fail to capture the potential of energy savings by exploiting the traffic that has already existed in the network. We study network dimensioning for municipal mesh access networks to save energy by rearranging existing traffic and adjusting link rate. The problem of energy-efficient network dimensioning is formulated using mixed integer linear programming. We also propose an efficient heuristic algorithm that consists of both traffic engineering and link-rate adaptation. Numerical experimental results show that our scheme is more effective than link-rate adaptation in saving energy, and achieves a good balance between energy efficiency and resource efficiency.
Aimed at the problem of the configuration program of road maintenance machinery index difficult to quantify, by using the method of fuzzy comprehensive in highway maintenance machinery configuration evaluation, depicted some fuzzy phenomena with subjective qualitative description , closely integrated quantitative analysis and subjective qualitative description. Try to find a reasonable and workable evaluation approach. So that make the mechanization of highway maintenance and construction more scientific and practical