TY - CHAP AU - Cinkler, Tibor AU - Ladányi, Ákos AU - Béres, R AU - Mitcsenkov, Attila Demeter AU - Paksy, Géza AU - Molnár, B AU - Andó, R TI - Energy-availability-QoS trade-off for future converged fixed-mobile networks T2 - 4th IEEE International Conference on Cognitive Infocommunications PB - Institute of Electrical and Electronics Engineers (IEEE) CY - New York, New York CY - Piscataway (NJ) SN - 9781479915460 PY - 2013 SP - 533 EP - 536 PG - 4 DO - 10.1109/CogInfoCom.2013.6719305 UR - https://m2.mtmt.hu/api/publication/2699237 ID - 2699237 LA - English DB - MTMT ER - TY - CHAP AU - Mitcsenkov, Attila Demeter AU - Bakos, Péter AU - Paksy, Géza AU - Cinkler, Tibor TI - Technology-independent Topology Design Heuristics for Point-to-Multipoint Optical Access Networks T2 - 2013 17TH INTERNATIONAL CONFERENCE ON OPTICAL NETWORKING DESIGN AND MODELING (ONDM) SN - 9781479904914 PY - 2013 SP - 298 EP - 303 PG - 6 UR - https://m2.mtmt.hu/api/publication/2693053 ID - 2693053 LA - English DB - MTMT ER - TY - CONF AU - Bakos, Péter AU - Katzenberger, Péter AU - Mitcsenkov, Attila Demeter AU - Paksy, Géza AU - Cinkler, Tibor TI - Topology Optimization for Next Generation Access Networks: Algorithmic Overview T2 - MACRo 2011 PY - 2011 SP - 107 EP - 119 PG - 13 UR - https://m2.mtmt.hu/api/publication/2663329 ID - 2663329 LA - English DB - MTMT ER - TY - CONF AU - Mitcsenkov, Attila Demeter AU - Katzenberger, Péter AU - Bakos, Péter AU - Paksy, Géza TI - Automatic map-based FTTx access network design T2 - European Regional ITS Conference PB - International Telecommunications Society (ITS) C1 - Budapest PY - 2011 SP - 1 EP - 12 PG - 12 UR - https://m2.mtmt.hu/api/publication/2673943 ID - 2673943 AB - Several mature and standardized optical access network technologies are available for network operators providing broadband services, being now in deployment phase; therefore cost estimation, business analysis, efficient deployment strategies, network and topology design issues for FTTx access networks play an increasingly important role regarding profitability and market success. In a competitive environment, techno-economic evaluation supports the optimal choice among available technologies. Even the tradeoff between future proof technical superiority and short term investment minimization requires a farseeing decision. In our point of view, cost estimation and techno-economic evaluation is strongly related to strategic network design: among others the uneven population density, irregular street system or infrastructure have significant impact on the network topology, thus the deployment costs as well. In order to deal with these aspects, a high- level, strategic network design is necessary that adapts to geospatial characteristics of the services area, providing accurate and detailed network information for the techno- economic evaluation [1]. We have developed a topology designer methodology that supprts the above requirements, providing (near) optimal topology of the fully or partially optical access network, based on the geospatial information about the service area: digital maps, existing infrastructure and subscriber database. Automatic topology design for large-scale service areas, with 10.000s of subsribers is a highly complex mathematical problem. The tough algorithms for a near optimal, yet efficient solution. The developed algorithms were evaluated regarding their speed and accuracy. Based on topology design results, a detailed and flexible techno-economic comparison is carried out, since the framework handles various broadband access network technologies, as presented in a case study. LA - English DB - MTMT ER - TY - JOUR AU - Mitcsenkov, Attila Demeter AU - Paksy, Géza AU - Cinkler, Tibor TI - Geography- and infrastructure-aware topology design methodology for broadband access networks (FTTx) JF - PHOTONIC NETWORK COMMUNICATIONS J2 - PHOTONIC NETW COMMUN VL - 21 PY - 2011 IS - 3 SP - 253 EP - 266 PG - 14 SN - 1387-974X DO - 10.1007/s11107-010-0297-4 UR - https://m2.mtmt.hu/api/publication/1789267 ID - 1789267 AB - We present topology design methodology for broadband (FTTx) access networks. The calculations are based on real geographic data (digital maps) and infrastructural information of the targeted area, using detailed and realistic cost models in order to provide results of practical interest. The developed heuristics offer low time consumption and nearly optimal solutions for the highly complex problem of minimal cost network deployment, due to the properly chosen and customized heuristic algorithms for the various network technologies. We review the specific properties of the FTTx network technologies, present a formal representation of the problem including a detailed cost function and network model, discuss complexity issues. The various solution techniques are presented along with case studies of real-life scenarios, in order to show potential of the methodology. The developed heuristic algorithms offer approximation of the optimum within 10-15%, while time consumption remains in the range of a few minutes even for large-scale scenarios with 10.000s of customers. Beyond topology design, the results provided by these methods are useful for preliminary CAPEX estimation and techno-economic comparison. LA - English DB - MTMT ER - TY - CONF AU - Paksy, Géza AU - Mitcsenkov, Attila Demeter AU - Máthé, Dániel TI - Távközlési hálózatok stratégiai tervezése térinformatikai adatok alapján T2 - Műszaki Térinformatika Konferencia PY - 2011 SP - 1 EP - 9 PG - 9 UR - https://m2.mtmt.hu/api/publication/2663331 ID - 2663331 LA - Hungarian DB - MTMT ER - TY - CONF AU - Mitcsenkov, Attila Demeter AU - Katzenberger, Péter AU - Bakos, Péter AU - Paksy, Géza AU - Cinkler, Tibor TI - Computer-aided, automatic design of FTTx access networks T2 - BONE Summer School 2010 PY - 2010 SP - 29 EP - 31 PG - 3 UR - https://m2.mtmt.hu/api/publication/2663326 ID - 2663326 LA - English DB - MTMT ER - TY - CONF AU - Mitcsenkov, Attila Demeter AU - Paksy, Géza AU - Cinkler, Tibor TI - Topology Design and Capex Estimation for Passive Optical Networks T2 - BroadNets 2009 - Sixth International ICST Conference on Broadband Communications, Networks, and Systems SN - 9789639799493 PY - 2009 SP - 1 EP - 8 PG - 8 DO - 10.4108/ICST.BROADNETS2009.7245 UR - https://m2.mtmt.hu/api/publication/2647844 ID - 2647844 AB - Several optical access network technologies are available for network operators providing broadband services (FTTx: Fiber-to-the-X solutions). These technologies are now in deployment phase, therefore network and topology design issues play an increasingly important role. In this paper we address broadband optical access network design minimizing deployment costs, taking operation issues into account, using detailed cost and network models of the above listed FTTx technologies that suit best to actual networks due to detailed cost metrics used instead of just minimizing fiber lengths. We present a heuristic solution that works fast even for large problem instances, providing results with a difference less than approximately 10-20% from the computed ILP (Integer Linear Programming) optimum for smaller cases where ILP could be used. Along with these algorithms we present case studies of real-life network and service requirement instances (number of customers ranging from 400 to 20.000). LA - English DB - MTMT ER - TY - CHAP AU - Mitcsenkov, Attila Demeter AU - Paksy, Géza AU - Cinkler, Tibor ED - I, de Miguel ED - R M, Lorenzo ED - D W, Faulkner ED - R, Neat TI - Efficient heuristic methods for FTTx topology optimization and architecture cost minimization T2 - NOC/OC&I 2009 Proceedings PB - Universidad de Valladolid CY - Valladolid SN - 9788469229439 PY - 2009 SP - 495 EP - 502 PG - 8 UR - https://m2.mtmt.hu/api/publication/2645050 ID - 2645050 AB - Next generation access networks will be based on the Fiber-to-the-X (FTTx) paradigm, since optical transmission provides the required bandwidth for future services and triple play architecture. FTTx technologies are now mature and standardized; network deployment phase has already started in many areas around the world. The profitability of such an optical broadband access technology strongly depends on the design of optimal topologies, minimizing initial investments (CapEx). The network planning problem itself is difficult (NP-hard), however close to optimal topologies are required even for large data sets, for city-scale service areas. Therefore efficient heuristic approximations are needed, like the Branch Contracting Algorithm (BCA) presented in this paper. It can handle real problem instances, provides close to optimal solution, and works fast enough to support economic comparison of different architectures, supporting decisions of a network operator. LA - English DB - MTMT ER - TY - JOUR AU - Paksy, Géza AU - Jakab, Tivadar TI - Hullámhossz-multiplexálás alapú optikai transzporthálózatok tervezése JF - MAGYAR TÁVKÖZLÉS: A MAGYAR TÁVKÖZLÉSI VÁLLALAT LAPJA J2 - MAGYAR TÁVKÖZLÉS VL - 11 PY - 2000 IS - 3 SP - 3 EP - 11 PG - 9 SN - 0865-9648 UR - https://m2.mtmt.hu/api/publication/2652744 ID - 2652744 LA - Hungarian DB - MTMT ER -