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In order to improve the negative effect of increasing transformation cost of pseudo-Boolean Satisfiability algorithm in the routing process, a new routing algorithm was proposed for FPGA, which combined advantages of pseudo-Boolean Satisfiability and geometric routing algorithm. In the routing process, one of geometric routing algorithm-PathFinder was chosen firstly for FPGA routing. If not successful,...
For wireless mesh networks has no support infrastructure and shows a highly dynamic feature, routing becomes a key problem to be solved. Data packets are transmitted on a path that had least hops in AODV protocol. It couldn't consider the path stability. When the node of wireless mesh networks moved quickly and the path had short lifetime, the path recovery and routing again is caused. It is a lot...
This paper proposes an algorithm for estimating available bandwidth of network nodes. The algorithm, based on statistical information of the network nodes, calculates link utilization and estimates the available bandwidth through the exponentially weighed moving average (EWMA) filter, and can thereby estimate precisely the available bandwidth of the link in the next time interval. Compared with conventional...
The Border Gateway Protocol (BGP), which is used to distribute routing information between autonomous systems, is an important component of the Internet's routing infrastructure. However, due to the lack of the mechanism the BGP is highly vulnerable to a variety of attacks. Many solutions have been proposed by some corporations or individual. But the current propositions either were difficult in operation,...
In order to improve the survivability of IP networks, this paper presents a fast self-healing mechanism for distance vector routing protocol called FS-DVP.(Fast Self-healing distance vector protocol). The mechanism can dealing with network failures effectively through the precomputed multiple feasible next hops per destination. This local rerouting scheme guarantee the forwarding continuity in the...
Aiming at the RIP (routing information protocol) canpsilat dealing with network failures effectively, causing significant forwarding discontinuity after a failure. The drawback with this protocol is that it need to trade off routing stability and forwarding continuity. To improve failure resiliency without jeopardizing routing stability, we propose a fast local rerouting based on RIP called FR-RIP...
A mobile ad hoc network (MANET) is a collection of mobile nodes that forms a provisional network dynamically without the aid of any predetermined infrastructure. In particular, the route security is more important. In order to solve the problem several route discovery protocols have been proposed such as ARAN and SRP ect. But those protocols suffer from two problems: (1) difficult in operation, (2)...
An autonomous iteration-based approach is proposed to identify faulty links for LEO satellite systems employing intersatellite links (ISLpsilas). A designed network satellite with management responsibilities collects the routing information of communication itself with other satellites, based on which a fault diagnosis model is introduced. Then the most likely faulty link is identified by using an...
Currently, a lot of studies on network fault management have focused on the terrestrial network, which appears to not easily be applied to satellite networks. An autonomous iteration-based algorithm is proposed to identify faulty links for LEO satellite systems employing intersatellite links (ISL's). A designed network satellite with management responsibilities collects the routing information of...
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