|Bibliography||Rizou, Stamatia; Dürr, Frank; Rothermel, Kurt: Solving the Multi-operator Placement Problem in Large-Scale Operator Networks. |
In: Proceedings of the 19th International Conference on Computer Communication Networks.
University of Stuttgart : Collaborative Research Center SFB 627 (Nexus: World Models for Mobile Context-Based Systems).
pp. 1-6, english.
Zurich, Switzerland: IEEE Communications Society, August 6, 2010.
Article in Proceedings (Conference Paper).
|CR-Schema||C.2.4 (Distributed Systems)|
Processing streams of data in an overlay network of operators distributed over a wide-area network is a common idea shared by different applications such as distributed event correlation systems and large-scale sensor networks. In order to utilize network resources efficiently and allow for the parallel deployment of a large number of large-scale operator networks, suitable placement algorithms are vital that place operators on physical nodes. In this paper, we present a distributed placement algorithm that minimizes the bandwidth-delay product of data streams between operators of the network in order to reduce the induced network load. Since the fundamental optimization problem is NP-hard, we propose a heuristic solution. First, we calculate an optimal solution in an intermediate continuous search space, called latency space. Subsequently the continuous solution is mapped to the physical network. Our evaluations show that this algorithm reduces the resulting network load significantly compared to state of the art algorithms and achieves results close to the optimum.
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|Department(s)||University of Stuttgart, Institute of Parallel and Distributed Systems, Distributed Systems|
|Project(s)||SFB-627, E3 (University of Stuttgart, Institute of Parallel and Distributed Systems, Distributed Systems)|
|Entry date||June 22, 2010|