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It is difficult to promote the use of existing methods of DDoS attack source trace-back. Source IP address forgery is an important technology that DDoS attackers commonly use. Combined with the characteristics of the datagram and the traditional virtual circuit, orientable complete path (OCP) is put forward. OCP can be used to solve the problem of source IP address forgery, to track attack source,...
It has been widely recognized that the current Internet routing system is facing serious scaling problem. Several efforts argue that the routing scaling problem necessitates architectural changes. In this paper, we propose a scalable routing architecture for future Internet. Our proposal goes along the ideas of inter-domain/intra-domain routing separation and provider/customer networks separation,...
Different dynamic routing and wavelength assignment algorithms for WDM optical networks are described in this paper. A new dynamic algorithm based on the layered graph model and called Multi-object Optimal Algorithm (MOA) is proposed. A distinguished feature of MOA algorithm is that it employs more accurate network information than the existing algorithms on the availability of both the number of...
Admission control and routing are two key mechanisms for advanced Quality of Service (QoS) and Traffic engineering (TE) support in the data networks. However, traditional QoS and TE solutions usually focus exclusively on routing to achieve network resource usage optimization, while often neglect to give adequate attention to admission control. To provide a more comprehensive solution, a novel approach...
Generalized Multi-Protocol Label Switching (GMPLS) based optical networks are viewed as a promising network infrastructure for the next generation network (NGN) development. By pre-configuring the resources of dynamic optical networks, we can reconstruct the physical topology, thus increase the number of direct routes between potentially heavily loaded physical node pairs and optimize the performance...
Router has acted as more and more important role in the large-scale network. In the meantime, the security of the router become more seriously. In this paper, we propose a new algorithm to decide a credential routing path from the start router to the end one based on the trust theory that considers the trustworthy of link, the cost of link and the trustworthy of router as the critical factors so as...
In this paper, we propose a method to save energy consumption for the rejoin procedure of ZigBee networks. By skipping the active scan process, a rejoining node and its neighbors are able to save a large amount of energy. In addition, the rejoining node chooses the suitable potential parent by reserving and utilizing original neighbor table. This method is capable of reducing the number of rejoin...
In most of existing routing protocols of wireless sensor networks (WSNs), a route is set up through broadcasting the route request (RREQ) messages throughout the entire network, which often brings broadcast storm. In this paper, we propose a new gradient-based micro sensor routing protocol (GMSRP) to alleviate the broadcast storm. With the GMSRP, during the network initialization, the sink node broadcasts...
A new traffic-balanced adaptive routing algorithm is proposed for 2-dimensional torus with only four virtual channels, the deadlock avoidance technique is presented based on two levels odd-even turn model scheme. Unlike the previous virtual network routing schemes, virtual channel resource are not equally distributed to the packets, the new method allows all packets have the equal chances to share...
The hierarchical routing and wavelength assignment problem in Automatic Switched Optical Network (ASON) is researched. Based on our analysis, three adaptive algorithms called MLLR (Multi-Layer Least Loaded Routing Algorithm), WMLCR (Wavelength-graph-based Multi-Layer Least Congestion Routing Algorithm) and BMR (Backtracking-based Multi-Layer Routing Algorithm) are proposed. A platform named AHORSP...
The fatal weakness of wireless sensor is the problem of energy consumption. The AODV protocol is based on the minimum number of hops. However, it may not be the optimal routing. Considering from the perspective of remaining energy of nodes, we found this protocol is more likely to result in the death of nodes. In order to solve this problem, we divided the nodes into three stages according to the...
A novel two end-nodes initiating restoration scheme for optical networks is proposed to further reduce the restoration time, which focuses on the defect resulted by only single end-node initiating restoration in the most of current restoration schemes. Under the proposed scheme using pre-computed route, the fault indication messages trigger the source and the destination respectively, and then initiates...
The efficiency of routing algorithms has always been an open question accompanied with the evolving history of routing problems. Message storm could easily be found in today's Internet routing infrastructure, especially in the context of distance-vector like algorithm, requiring each node affected by network anomalies to send requests to all its neighbors and wait for response. Through in-depth analysis,...
As the traditional GEAR protocols are lack of enough topology information of the network, routing void and holes diffusion will be appeared. This paper puts forward advanced GEAHAR routing mechanism, which has taken the information of second-hop nodes into consideration, consequently reducing the probabilities of the occurrence of routing void. Moreover, the article discusses the relationship between...
With continuously development of the ad hoc network technology, integrating with other networks becomes one of the trends. Due to the involvement of other networks, routing strategy needs to change with the development. To considerate the key factors whose influence are serious comprehensively is needed. For those reasons, this paper proposes a novel concept of the optimal routing function, which...
In order to achieve the access of massive high-dimensional data on P2P network efficiently, we present a distributed similarity retrieval system named R-Chord using modified iDistance based on relative position code (RPCID). RPCID calculates the lower bound distance between the query point and the data point using relative position code (RPC). RPC is a data object encoding method based on spatial...
Wireless sensor networks together hundreds or thousands of sensor nodes to accurately monitor a remote environment. Considering severe resources constraints, it requires robust wireless communication protocols that are energy efficient and can provide longer lifetime, especially for routing protocol. In this paper, a balanced-clustering, energy-efficient hierarchical routing protocol is proposed,...
It is a challenge to thwart both the passive attacks and active attacks in mobile ad hoc networks for their unique characteristics. The improvement of security often sacrifices the delivery rate or other QoS. We propose secure multipath routing scheme based on modified secret sharing as an effective mechanism to protect data confidentiality and simultaneously enhance data delivery rate in mobile ad...
Anycast is a new service of IPv6. How to guarantee its quality of service(QoS) has become an important subject. An anycast QoS routing algorithm supporting traffic engineering(ART) in multi-protocol label switching(MPLS) networks is proposed. In order to select a QoS path for client's bandwidth request, information regarding the source-destination pairs is used to reduce the interference between current...
In this paper, we studied the multi-hop broadcast algorithms for delivery of safety message in inter vehicle communication environment. In MANET environment, there are three multi-hop broadcasting schemes such as probability based methods, area based methods and topology based methods. We simulate MANET based multi-hop broadcasting schemes and evaluate the performance of our work in order to analyze...
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