TY - GEN A1 - Eisenblätter, Andreas A1 - Fügenschuh, Armin A1 - Geerdes, Hans-Florian A1 - Junglas, Daniel A1 - Koch, Thorsten A1 - Martin, Alexander T1 - Optimization Methods for UMTS Radio Network Planning N2 - The UMTS radio network planning problem poses the challenge of designing a cost-effective network that provides users with sufficient coverage and capacity. We describe an optimization model for this problem that is based on comprehensive planning data of the EU project MOMENTUM. We present heuristic mathematical methods for this realistic model, including computational results. T3 - ZIB-Report - 03-41 Y1 - 2003 U6 - http://nbn-resolving.de/urn/resolver.pl?urn:nbn:de:0297-zib-7637 ER - TY - GEN A1 - Geerdes, Hans-Florian A1 - Karl, Holger T1 - The Potential of Relaying in Cellular Networks N2 - Relaying is a protocol extension for cellular wireless computer networks; in order to utilize radio resources more efficiently, several hops are allowed within one cell. This paper investigates the principle potential of relaying by casting transmission scheduling as a mathematical optimization problem, namely, a linear program. We analyze the throughput gains showing that, irrespective of the concrete scheduling algorithm, performance gains of up to 30\% on average for concrete example networks are achievable. T3 - ZIB-Report - 03-42 KW - Wireless ad hoc networks KW - Resource Allocation KW - Integer Programming KW - Routing KW - Scheduling KW - Operation Research KW - Network Performance Y1 - 2003 U6 - http://nbn-resolving.de/urn/resolver.pl?urn:nbn:de:0297-zib-7641 ER - TY - GEN A1 - Geerdes, Hans-Florian T1 - Assessing Capacity Improvements by Relaying in Cellular Networks N2 - Relaying -- allowing multiple wireless hops -- is a protocol extension for cellular networks conceived to improve data throughput. Its benefits have only been quantified for small example networks. For assessing its general potential, we define a complex resource allocation\slash{}scheduling problem. Several mathematical models are presented for this problem; while a time-expanded MIP approach turns out intractable, a sophisticated column generation scheme leads to good computational results. We thereby show that for selected cases relaying can increase data throughput by 30\% on the average. T3 - ZIB-Report - 03-43 KW - Wireless ad hoc networks KW - Resource Allocation KW - Integer Programming KW - Routing KW - Scheduling KW - Operation Research KW - Network Performance Y1 - 2003 U6 - http://nbn-resolving.de/urn/resolver.pl?urn:nbn:de:0297-zib-7651 ER - TY - GEN A1 - Eisenblätter, Andreas A1 - Fügenschuh, Armin A1 - Geerdes, Hans-Florian A1 - Koch, Thorsten A1 - Türke, Ulrich A1 - Meijerink, Ellen T1 - XML Data Specification and Documentation Y1 - 2003 PB - IST-2000-28088 MOMENTUM Technical Report ER - TY - CHAP A1 - Eisenblätter, Andreas A1 - Fügenschuh, Armin A1 - Geerdes, Hans-Florian A1 - Junglas, Daniel A1 - Koch, Thorsten A1 - Martin, Alexander ED - Ahr, Dino ED - Fahrion, Roland ED - Oswald, Marcus ED - Reinelt, Gerhard T1 - Optimisation Methods for UMTS Radio Network Planning T2 - Operation Research Proceedings 2003 Y1 - 2003 U6 - https://doi.org/10.1007/978-3-642-17022-5_5 SP - 31 EP - 38 PB - Springer ER - TY - RPRT A1 - Eisenblätter, Andreas A1 - Geerdes, Hans-Florian A1 - Koch, Thorsten A1 - Türke, Ulrich T1 - Describing UMTS Radio Networks using XML Y1 - 2003 PB - MOMENTUM ER - TY - RPRT A1 - Eisenblätter, Andreas A1 - Geerdes, Hans-Florian A1 - Koch, Thorsten A1 - Türke, Ulrich T1 - MOMENTUM Public Planning Scenarios and their XML Format Y1 - 2003 IS - TD(03) 167 PB - COST 273 CY - Prague, Czech Republic ER - TY - JOUR A1 - Eisenblätter, Andreas A1 - Fügenschuh, Armin A1 - Fledderus, E. A1 - Geerdes, Hans-Florian A1 - Heideck, B. A1 - Junglas, Daniel A1 - Koch, Thorsten A1 - Kürner, T. A1 - Martin, Alexander ED - Martin, Alexander T1 - Mathematical Methods for Automatic Optimization of UMTS Radio Networks Y1 - 2003 UR - http://momentum.zib.de/paper/momentum-d43.pdf IS - D4.3 PB - IST-2000-28088 MOMENTUM ER - TY - JOUR A1 - Eisenblätter, Andreas A1 - Geerdes, Hans-Florian A1 - Junglas, Daniel A1 - Koch, Thorsten A1 - Kürner, T. A1 - Martin, Alexander T1 - Final Report on Automatic Planning and Optimisation Y1 - 2003 UR - http://momentum.zib.de/paper/momentum-d47.pdf IS - D4.7 PB - IST-2000-28088 MOMENTUM ER -