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We present a heuristic algorithm for k-broadcasting in an arbitrary network. This heuristic generates optimal k-broadcast time in grid graph when k≥2. In two-dimensional torus graph, it also generates optimal k-broadcast time when k≥3, while giving a bound of └m/2┘+└n/2┘+1 when k=2, where m and n are the number of rows and columns in the graph. In practice, the new heuristic outperforms best known 1-broadcast algorithm for three different network design models. The new algorithm runs fast. The time complexity of the algorithm is O(R · m), where R represents the rounds of broadcasting, and m stands for the total number of edges in the graph.
Date of Conference: 16-18 July 2003