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Current network infrastructures exhibit poor power efficiency, running network devices at full capacity all the time regardless of the traffic demand and distribution over the network. Most research on router power management are at component level or link level, treating routers as isolated devices. A complementary approach is to facilitate power management at network level by routing traffic through...
Mobile ad hoc networks are a set of wireless mobile devices that communicate without fixed infrastructure, forming temporary networks dynamically. Each node in such a network is more than a data receiver/sender, it is also a router that forwards data packets to its proper destination. The main characteristics of ad hoc networks are frequent change in the network topology, limited power of its links...
In this paper we address the issue of designing multi-path routing algorithms. Multi-path routing has the potential of improving the throughput but requires buffers at the destination. Our model assumes a network with capacitated edges and a delay function associated with the network links (edges). We consider the problem of establishing a specified throughput from source to destination in the network,...
We present a complete scenario driven component based analytic model of 802.11 MAC and OLSR routing protocols in MANETs. We use this model to provide a systematic approach to study the network performance and cross-layer analysis and design of routing, scheduling, MAC and PHY layer protocols. The routing protocol is divided into multiple components. Componentization is a standard methodology for analysis...
In this paper, we consider the important aspect of quality of service (QoS) in wireless mesh networks, focusing on packet delays and packet drops. We observe that the options of solely focusing on throughput, and of only depending on the QoS type characterization by the application level protocol is not sufficient. We propose the use of multiple queues to hold the packets based on their QoS requirement...
Two classic categories of models exist for computer networks: network information flow and network of queues. The network information flow model appropriately captures the multi-hop flow routing nature in general network topologies, as well as encodable and replicable properties of information flows. However, it assumes nodes in the network to be infinitely powerful and therefore does not accurately...
Finding the optimum path or routing always is an important and difficult issue in a practical dynamic network. In this paper, a new routing approach that due to multiple requirements in the reconfigurable network is briefly discussed. In order to obtain the optimum path between two nodes, we use the ant algorithm with which the problem can be attached to select the path. Simulation results shows that,...
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