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Equivalence of two linear programming relaxations for broadcast scheduling
Authors:Samir Khuller  Yoo-Ah Kim
Affiliation:Algorithms and Theory Group, Department of Computer Science and Institute for Advanced Computer Studies, University of Maryland, A.V. Williams Building, Room 3369, College Park, MD 20742, USA
Abstract:A server needs to compute a broadcast schedule for n pages whose request times are known in advance. Outputting a page satisfies all outstanding requests for the page. The goal is to minimize the average waiting time of a client. In this paper, we show the equivalence of two apparently different relaxations that have been considered for this problem.
Keywords:Scheduling   Broadcasting   Approximation algorithms   Linear programming
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