نتایج جستجو برای: network routing
تعداد نتایج: 698545 فیلتر نتایج به سال:
Opportunistic networks are challenging types of networks where network connections are imminent. Network topologies are dynamic and can rapidly change. A path between a source node and a destination node may or may not exist, the network can be disconnected. This type of behavior observed under opportunistic networks makes classical networking solutions impractical. Thus, traditional routing al...
In large networks, maintaining precise global network state information is almost impossible. Many factors, including non-negligible propagation delay, infrequent link state update due to overhead concerns, link state update policy, resource reservation, and hierarchical topology aggregation, have impacts on the precision of the global network state information. To achieve efficient Quality of ...
Energy efficient routing protocols for Mobile Ad hoc Network (MANET) and Wireless Sensor Network is a challenging task. Many different routing protocols based on different features have been proposed to the IETF. Performances of many of these routing protocols have been evaluated focusing on metrics such as delay, routing overhead, and packet delivery. Thus, this paper will discuss about the po...
In ad-hoc networks, routing is one of the most important issues, and various protocols are proposed. However, as situations and topologies of an ad-hoc network are various and dynamic, it is difficult for a single fixed protocol to perform well for all occasions. Therefore, some dynamic and adaptive mechanism in routing protocols is necessary. In this paper, we propose an adaptive routing syste...
Adaptive routing can improve network performance and fault-tolerance by providing multiple routing paths. However, the implementation complexity of adaptive routing can be signiicant, discouraging its use in commercial massively parallel systems. In this paper, we introduce Hierarchical Adaptive Routing (HAR), a new adaptive routing framework, which provides a uni-ed framework for simple and hi...
As routing takes place in an entirely distributed system where local routers have no direct access to globally consistent network state information, a routing algorithm has to make uncertain forwarding decisions. As the network state may change, due to failures or new adoptions of networks, routing algorithms have to adapt themselves to the new situation. This network convergence phase should b...
Ad hoc networks are characterized by multihop wireless connectivity, frequently changing network topology and the need for efficient dynamic routing protocols. We compare the performance of three routing protocols for mobile ad hoc networks: Dynamic Source Routing (DSR) , Ad Hoc On-Demand Distance Vector Routing (AODV), location-aided routing(LAR1).The performance differentials are analyzed usi...
In this paper we present an all-optical network architecture and a systolic routing protocol for it. An -dimensional optical fat tree network ( ) consists of routing nodes and processing nodes deployed at the leaf nodes of the network. In our construction packets injected into the carry no routing information. Routing is based on the use of a cyclic control bit sequence and scheduling. The syst...
We describe active routing as a mechanism that can be used by individual network users, network managers, or network owners. Active routing is related to, and compared with, the current work on label switching. We address several implementation issues including the evolution from our current network structure and the distributed sand boxes. Sand boxes are used to control the resources that the ...
A mobile ad-hoc network is an autonomous collection of mobile nodes that communicate over bandwidth constrained wireless links. Due to nodal mobility, the network topology may change rapidly and unpredictably over time. The routing protocols meant for wired network cannot be used for mobile ad-hoc network because of mobility of network. A number of routing protocols like Destination-Sequenced D...
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