Steiner Tree Problem with Minimum Number of Steiner Points and Bounded Edge-Length
نویسندگان
چکیده
In this paper, we study the Steiner tree problem with minimum number of Steiner points and bounded edge-length (STPMSPBEL), which asks for a tree interconnecting a given set of n terminal points and a minimum number of Steiner points such that the Euclidean length of each edge is no more than a given positive constant. This problem has applications in VLSI design, WDM optimal networks and wireless communications. We prove that this problem is NF’-complete and present a polynomial time approximation algorithm whose worst-case performance ratio is 5.
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عنوان ژورنال:
- Inf. Process. Lett.
دوره 69 شماره
صفحات -
تاریخ انتشار 1999