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This paper focuses on efficient protocols that enhance a network with topology awareness. This paper discusses centralized algorithms with provable performance, and introduces decentralized asynchronous heuristics that use only local information and local computations. These algorithms are based on distributed solutions of convex programs expressing optimization of various spectral properties of the matrix associated with the graph of the network topology. For example, these algorithms assign special weights to links crossing or directed towards small cuts by minimizing the second eigenvalue. The main technical ingredient is to perform the decentralized asynchronous computations in a manner that preserves critical invariants of the exact second eigenvalue of the adjacency matrix associated with the network topology.

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Format:PDFSize:220 KB
Date:Jan 2007
Pages:5

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