Research On Communication Network Link Resource Allocation Management

With continuous development of the communication network and expanding of its scale, the management of network resources attracted intensive attentions for the sake of better service. As one of important subjects of communication network resource management, network resource allocation has also become a research focus. Good transmission quality is the premise to ensure the user’s interests during network resource allocating, and network performance is directly related to the quality of the user’s communication, then there is a higher demand on allocation of link resources to guarantee the needs of users and improve the quality of service in the nowadays dynamic, open and expandable network environment.The analysis of the wired part in the communication network was carried out in this paper. The information of network link resource is characterized by graph theory to facilitate the management of network resources, and the content of information is stored in the form of adjacency matrix so as the storage space is saved. A model based on the shortest path of link resource allocation is proposed through the analysis of the specific requirements of the communication network environment on the link resource allocation management. A link update algorithm of the network resource is presented with the theory of OSPF protocol, which can perceive dynamic network environment better and make full use of network resources. Then, an improved Dijkstra’s algorithm based on multi-constraints is given by combining with the practical application of Dijkstra’s shortest path algorithm in communication network, which chooses path through the cost of link, and is based on the consideration of the bandwidth and hops to meet bandwidth requirements of users, the low delay is guaranteed, so that performance of the network can be improved.Finally, the simulation system of the communication network link resource allocation is designed and implemented. The system can display the topology scene of network and realize the algorithm function. The algorithm is verified by the examples in the simulation system, and the experimental results show that the algorithm is effective.