PT Unknown AU Reichelt, D TI Kommunikationsnetzwerkplanung unter Kosten- und Zuverlässigkeitsgesichtspunkten mit Hilfe von evolutionären Algorithmen PD April PY 2006 WP https://www.db-thueringen.de/receive/dbt_mods_00005635 LA de DE Genetische Algorithmen; Reparaturheuristik; Netzwerkplanung; Evolutionäre Algorithmen; All-Terminal Reliability AB Within the last 10 years business-to-business telecommunication gets a key success factor for many companies. The reliability of network topologies becomes a major design issue for modern communication network topologies. Furthermore, a network designer is faced by economic aspects. This thesis investigates the design of economic and reliable communication network topologies. Due to complexity of the design problem decision support systems are appropriated tools to support the network design process. This thesis proposes methods for decision support systems for the design of reliable and economic network topologies. This thesis investigates furthermore the combinatorial network design problem with the objectives reliability and network setup cost. The reliability of a network topology is evaluated by the all-terminal reliability. Several methods for calculating the all-terminal reliability by an empirical comparison are examined. Design problems with identical link reliabilities and design problems with different link options are investigated further on. The metaheuristic Genetic Algorithms (GA) is proposed to solve the combinatorial network design problem. First, GAs for single objective problems with constraints are proposed. Furthermore, multiobjective approaches optimizing both objectives in parallel are presented. An experimental comparison investigates the new GAs for common test problems and compares the results with existing approaches from literature. ER