The problem of minimizing the maximum edge congestion in a multicast communication network generalizes the well-known -hard multicommodity flow problem. We give the presently best theoretical approximation results as well as efficient implementations. In particular we show that for a network with edges and multicast requests, an -approximation can be computed in time, where bounds the time for computing an -approximate minimum Steiner tree. Moreover, we present a new fast heuristic that outperforms the primal-dual approaches with respect to both running time and objective value.
Mots clés : combinatorial optimization, approximation algorithms
@article{RO_2004__38_4_319_0, author = {Baltz, Andreas and Srivastav, Anand}, title = {Fast approximation of minimum multicast congestion - {Implementation} versus theory}, journal = {RAIRO - Operations Research - Recherche Op\'erationnelle}, pages = {319--344}, publisher = {EDP-Sciences}, volume = {38}, number = {4}, year = {2004}, doi = {10.1051/ro:2004028}, zbl = {1114.90101}, language = {en}, url = {http://www.numdam.org/articles/10.1051/ro:2004028/} }
TY - JOUR AU - Baltz, Andreas AU - Srivastav, Anand TI - Fast approximation of minimum multicast congestion - Implementation versus theory JO - RAIRO - Operations Research - Recherche Opérationnelle PY - 2004 SP - 319 EP - 344 VL - 38 IS - 4 PB - EDP-Sciences UR - http://www.numdam.org/articles/10.1051/ro:2004028/ DO - 10.1051/ro:2004028 LA - en ID - RO_2004__38_4_319_0 ER -
%0 Journal Article %A Baltz, Andreas %A Srivastav, Anand %T Fast approximation of minimum multicast congestion - Implementation versus theory %J RAIRO - Operations Research - Recherche Opérationnelle %D 2004 %P 319-344 %V 38 %N 4 %I EDP-Sciences %U http://www.numdam.org/articles/10.1051/ro:2004028/ %R 10.1051/ro:2004028 %G en %F RO_2004__38_4_319_0
Baltz, Andreas; Srivastav, Anand. Fast approximation of minimum multicast congestion - Implementation versus theory. RAIRO - Operations Research - Recherche Opérationnelle, Tome 38 (2004) no. 4, pp. 319-344. doi : 10.1051/ro:2004028. http://www.numdam.org/articles/10.1051/ro:2004028/
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