In this article, three new dynamic, low delay multicast routing algorithms
based on the greedy tree technique are proposed; Source Optimised Tree (SOP
T), Topology based Optimisation Tree (TOPT) and Minimum Diameter Tree (MDT)
. A simulation analysis is presented showing the various performance aspect
s of the algorithms, in which a comparison is made with the greedy and Core
Based Tree (CBT) techniques. The effects of the tree source location on dy
namic membership change are also examined. The simulations demonstrate that
the SOFT algorithm achieves a significant improvement in terms of delay an
d link usage when compared to the CBT, and the greedy algorithm. (C) 1999 E
lsevier Science B.V. All rights reserved.