JIANG Ting-yao, LI Qing-hua. A Corrigendum to the Time Complexity of Multicast Routing Algorithm MPH[J]. Acta Electronica Sinica, 2004, 32(10): 1706-1708.
JIANG Ting-yao, LI Qing-hua. A Corrigendum to the Time Complexity of Multicast Routing Algorithm MPH[J]. Acta Electronica Sinica, 2004, 32(10): 1706-1708.DOI:
Multicasting is a communication service that allows a source to efficiently transmit copies of data packet to a set of destination nodes.The run time of multicast routing algorithm is a key problem in real time applications since finding a minimum cost multicast tree is NP-completeness.MPH(Minimum Path Cost Heuristic)algorithm is a famous heuristic solution to multicast routing.In this paper
we show that the
O(nm
2
+e)
time complexity of MPH in previous literatures is not correct by theory analysis and extensive simulation
where n is number of network nodes
m is number of destination nodes and e is number of network edges.Furthermore