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In multicast group planning in Tactical Networks (TNs), one of the most important challenges is to maximize the efficient use of network and end-user resources. Hence, multicast groups should be planned cleverly such that the total shared link capacity in a multicast distribution tree is increased and the reception of unwanted traffic at receiver nodes is reduced to a maximum extent. In this paper, the authors propose a technique to generate a group configuration by estimating the link capacity shared by any two users in a shortest-path multicast tree to improve the branching characteristics such as height and breadth of the tree while reducing the unwanted traffic by considering overlapping user interests.
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