by Madeira, Edmundo R. M.; Magedanz, Thomas; Dini, Petre

DOI: 10.1007/s10922-005-9009-2
Online Date: 3/29/2006
Print publication date: 6/1/2006
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by Bush, Stephen F.; Kalyanaraman, Shivkumar

DOI: 10.1007/s10922-005-9011-8
Online Date: 3/22/2006
Print publication date: 3/1/2006
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by Kramer, Gerhard; Savari, Serap A.

Active networks are network architectures with processors that are capable of executing code carried by the packets passing through them. A critical network management concern is the optimization of such networks and tight bounds on their performance serve as useful design benchmarks. A new bound on communication rates is developed that applies to network coding, which is a promising active network application that has processors transmit packets that are general functions, for example a bit-wise XOR, of selected received packets. The bound generalizes an edge-cut bound on routing rates by progressively removing edges from the network graph and checking whether certain strengthened d-separation conditions are satisfied. The bound improves on the cut-set bound and its efficacy is demonstrated by showing that routing is rate-optimal for some commonly cited examples in the networking literature.

DOI: 10.1007/s10922-005-9019-0
Online Date: 3/15/2006
Print publication date: 3/1/2006
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by Brauckhoff, Daniela; Bossardt, Matthias; Plattner, Bernhard

This paper presents a flexible service deployment architecture for the automated, on-demand deployment of distributed services in programmable networks. The novelty of our approach is (a) the customization of the deployment protocol by utilizing modular building blocks, namely navigation patterns, aggregation patterns, and capability functions, and (b) the definition of a corresponding service descriptor. A customizable deployment protocol has several important advantages: It supports a multitude of services, and it allows for an ad hoc optimization of the protocol according to the specific needs of a service and the current network conditions. Moreover, our architecture provides an environment for studying new patterns which aim at reducing deployment latency and bandwidth for certain services. We demonstrate how the developed architecture can be used to setup a virtual private network, and we present measurements conducted with our prototype in the PlanetLab test network. Furthermore, a comparison of a distributed pattern with a centralized pattern illustrates the performance trade-off for different deployment strategies.

DOI: 10.1007/s10922-005-9014-5
Online Date: 3/13/2006
Print publication date: 3/1/2006
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by Hershey, John E.; Bush, Stephen F.; Hoctor, Ralph T.

We present a simple distributed concept that appears to insinuate SWARM behavior in a collection of mobile platforms. The control is based on the inter-mobile platform communication links’ signal-to-noise ratio. This double use of communications is a natural linkage for SWARM behavior.

DOI: 10.1007/s10922-005-9010-9
Online Date: 3/13/2006
Print publication date: 3/1/2006
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by

DOI: 10.1007/s10922-005-9022-5
Online Date: 3/1/2006
Print publication date: 12/1/2005
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