کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
9663821 | 1446244 | 2005 | 19 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Two new algorithms for UMTS access network topology design
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کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه
مهندسی کامپیوتر
علوم کامپیوتر (عمومی)
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چکیده انگلیسی
Present work introduces two network design algorithms for planning UMTS (Universal Mobile Telecommunication System) access networks. The task is to determine the cost-optimal number and location of the Radio Network Controller nodes and their connections to the Radio Base Stations (RBS) in a tree topology according to a number of planning constraints. First, a global algorithm to this general problem is proposed, which combines a metaheuristic technique with the solution of a specific b-matching problem. It is shown how a relatively complex algorithm can be performed within each step of a metaheuristic method still in reasonable time. Then, another method is introduced that is able to plan single RBS-trees. It can also be applied to make improvements on each tree created by the first algorithm. This approach applies iterative local improvements using branch-and-bound with Lagrangian lower bound. Eventually, it is demonstrated through a number of test cases that these algorithms are able to reduce the total cost of UMTS access networks, also compared to previous results.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: European Journal of Operational Research - Volume 164, Issue 2, 16 July 2005, Pages 456-474
Journal: European Journal of Operational Research - Volume 164, Issue 2, 16 July 2005, Pages 456-474
نویسندگان
Alpár Jüttner, András Orbán, Zoltán Fiala,