A new evaluation model on green low carbon energy network for cloud computing— Quality of green(QoG)

The topic of the network energy consumption is going to be the key factor which can restrict the development of the whole environment of the network system under the significantly growth of the network devices and the sensor terminals. For in a variety of methods based on a single point of network equipment, energy-saving mechanisms, and new routing energy-saving strategies, how to make an evaluation of the green network is an urgent problem. Some traditional methods tend to be confined to a single property of the network system or focus on the overall energy consumption of the network system, either too one-sided or too general, which makes it hard to find the main crux of the high energy consumption of the network, the impact of quality of Green(QoG), as well as to make a better green network environment. The core meaning of the green network is simple indeed: to obtain the minimum of the network energy consumption under the basic promise of QoS. In this paper, a new evaluation model on green low-carbon energy network is proposed to solve such problem mentioned before. This new model is name by quality of green(QoG). In this paper, we use network measuring which be divided by three topics - performance, traffic and topology of the network to map the relationship between the QoS and the green evaluation and also to quantify green energy consumption index. The green energy consumption indexes are divided into eight indexes based on performance; two indexes based on the traffic and four indexes on the topology. Then we quantify four green fuzzy indexes as: Fluctuation F, vulnerability V, persistence P, recoverability R based on the statistical analysis. After that, we determine for the membership of the 14 green energy consumption indexes to the 4 green fuzzy indexes. Finally we build the evaluation matrix by fuzzy mathematics comprehensive evaluation method to get the standardized computing framework of QoG-quality of green. At last, we define a new concept as network exergy: the useful energy consumption during a conversion processs from a current network QoS conditions A to another QoS conditons B. After it reaches B, the network exergy is zero. The practical significance of this network exergy is that you must define the initial QoS and final QoS at the same time.