Applied Mechanics and Materials Vols. 411-414

Abstract: One of the basic conditions that self-organizing network can run properly is the correctness of the spreading of the nodes information in the network. This paper studied the according problem, designed a protocol for nodes in small self-organizing network finding each other and transmitting information.

Abstract: In this paper an energy-efficient management routing algorithm is presented. We provide a new idea and some solutions to balance the energy-efficient and QoS. Within the scope of QoS requirements, the routers consider energy-efficient and QoS at the same time, and choose a minimum energy consumption path. The proposed routing algorithm is then implemented with OpenFlow, which is an expandable, customizable, controllable and programmable experimental platform. The result indicates that proposed algorithm works well, and can balances between energy-efficient and QoS.

Abstract: Optical ring networks have been widely implemented as the major metro network architectures. However, as the network coverage expands, the system performance of the single ring structure degrades significantly. In this paper, we propose an interconnected ring topology to enhance the network throughput and efficiency. The carried out simulation results have revealed the superiority of employing such an interconnected architecture. We also discuss the increased complexities and fairness issues induced by such design.

Abstract: A quantum self-organization mapping networks model based on quantum neurons is presented in this paper. Both the input and the weight of the model are represented by the quantum bits, and the output of the model is represented by the real number. The model is composed of input layer and competitive layer. First, the samples are transformed into quantum states and are submitted to the input layer, and then the similar coefficients of quantum states are computed between the inputs and the weights. Secondly, the implicit pattern characters of the clustering samples are extracted in the competitive layer, and then the clustering results are showed. The quantum states of weights are updated by quantum rotation gates. The networks are trained by the algorithm combining the unsupervised learning and supervised learning together. Finally two experiments demonstrate that the model and algorithm are evidently superior to the general self-organization mapping networks.

Abstract: The university network is very popular, the use of computer networks for laboratory management has become a necessity. We proposed the construction of the building room memorandum ideas and some strategies that can be implemented, the better solution normative room management issues. According to the actual use of university computer room design possible combination of VLAN and VPN solutions. We used a more mature support for multiple operating systems and supports SNMP network devices Mrtg tools to help us achieve traffic monitoring, reducing the need for repeat open, traffic monitoring can be a good solution to the problem. Use of virtual LANs, the use of wireless network technology, the use of remote monitoring technology, the use of Web sites and remote access, have made these physical room on the formation of a relatively independent logical connections to facilitate the reunification of management and maintenance.

Abstract: Routing protocol is mainly responsible for seeking optimized path between source node and destination node and forwarding data package along the optimized path in a right way, which is a core link in wireless sensor network. In this thesis, a research on WSN routing algorithm based on ant-colony algorithm is done, targeting the features of WSN and on the basis of the analysis of classic routing protocol. Comparison and analysis of the path and convergence rate of cluster head node are done by means of emulated analysis, which is to some extent innovative and significant to research.

Abstract: Most of the existing ID-based designated verifier proxy signature schemes are implemented with pairings. The computation of parings is still much more expensive than the common modular multiplications and exponentiations. To obtain better efficiency, we construct an efficient ID-based DVPS scheme without pairings. The scheme is designed based on the hardness of the discrete logarithm problems. It is proven secure against adaptively chosen message attacks, in the random oracle model.

Abstract: SNS is an important internet application widely used in web 2.0 era. The paper introduces the basic meaning of SNS, analyzes the application value of SNS used in rural information services, and explores how to expand rural information services by using SNS.

Abstract: Computer network is one of the compulsory course for computer professional students, but students are boring for abstract network concepts, in order to improve the innovation of students, a virtual simulation tools named Packet Tracer is introduced into the classroom teaching, which can provide network simulation environment as real life with enough network equipment. This paper presents the configuration example of Open Shortest Path Firs Protocol, and proves the network connectivity simulation results, this is an efficient method for teaching and learning by visual emulator.

Abstract: PON technology is widely accepted as primary solution in the broadband access networks. Protection is an important issue in PON system while only protection of tree topologies has been studied and other topologies are ignored. This paper presents a comprehensive study on the protection schemes of two-stage cascaded PON with different topologies including tree-tree, tree-bus, ring-tree and ring-bus topologies. The reliability and protection issues were studied using reliability theory and numerical simulations. Results show that ring-bus topology has the best performance.