Research On Energy-saving-oriented Technology Of Service Carrying Networks

On the basis of sharing substrate resource, reconfigurable information communication basal network architecture supports the coexistence and management of multiple heterogeneous network architectures by constructing the Reconfigurable Service Carrying Networks(RSCN), therefore provides network users with various network services. However during the construction of RSCN, the green and energy-saving requirement of the substrate carrying network has not been met. On the one hand there are not fast and reliable energy-saving programs to construct RSCNs, on the other hand the substrate carrying network is not in the situation of well energy-conservation when some RSCNs suspend. How to construct and reconfigure the RSCNs to meet the energy-saving requirement of the substrate network optimized is an important topic to be researched.Supported by the “Reconfigurable Information Communication Basal Network Architecture” and “Service Adaptive Cognitive Carrying Mechanism” projects of the National Basic Research Program of China(973 Program), this thesis focuses on the noduses of the beginning and end of RSCN requirement in RSCN Green and Energy-saving Problem to carry out research, The detailed contents are outlined as follows:1. Aiming at improving energy-saving when constructing ordinary RSCN, a Nodes-Aggregation-based 2-stages-coordinated scheme is proposed. In this scheme, the substrate resource factor and the topological factor are integrated into a new concept called the important degree of node energy-saving. Based on the descending order of the node important degrees, the working nodes are prior used in order to resources integration for reducing energy consumptions, and ensuring the distance of the substrate links is shorter. The simulation results show facing the problem of ordinary RSCN green construction, this scheme improves revenue-energy ratio about 10% while success ratio reaches 70% and revenue cost ratio reaches 75%.2. Aiming at improving energy-saving construction of RSCN that has the characteristics of large-scale or high-bandwidth, a search-kernel mapping scheme based on aggregated network topology is proposed. Based on the node important degrees, the method finds kernel service node to embed, and ensures the found carrying kernel node satisfies the requirements of kernel service node. Based on greedy strategy, the method guarantees decreasing the sum of distance between substrate nodes by neighborhood searching, which means links are embedding with nodes. A requirement judgment scheme is proposed; meanwhile a mix method is designed to construct common RSCN. The simulation results show facing the green construction problem of RSCN that has the characteristics of large-scale or high-bandwidth, this method increases the success ratio near to 20%, and improves revenue-cost ratio and revenue-energy ratio more than 10%; facing the common RSCN green construction problem, the mix scheme enhances construction performance.3. Aiming at improving energy-saving reconfiguration of substrate carrying network when RSCN ends, a balance-energy scheme based on technique for order preference by similarity to ideal solution is proposed. In this scheme, some information of substrate carrying nodes is selected as the attribute of project, and rank nodes by the requirement of energy-saving or load-balance. After energy-saving reconfiguration, the method implements load-balance reconfiguration aiming at the worked network. The simulation results show that this scheme decreases the energy consumption and improves the situation of load imbalance, while increasing the success ratio and revenue-cost ratio.