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CROSSNET Técnicas de Cross-layer e Planeamento de Redes em Sistemas B3G (Cross-layer and Network Planning for B3G Systems). Fernando J. Velez IT / DEM, Universi ty of Beira Interior Covilhã, Portugal http://www.demnet.ubi.pt/~velez http://www.e-projects.ubi.pt fjv@ubi.pt
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CROSSNET Técnicas de Cross-layer e Planeamento de Redes em Sistemas B3G (Cross-layer and Network Planning for B3G Systems) Fernando J. Velez IT / DEM, University of Beira Interior Covilhã, Portugal http://www.demnet.ubi.pt/~velez http://www.e-projects.ubi.pt fjv@ubi.pt Kick-off meeting, IT/DEM-UBI, 30th June 2005.
Agenda 11.00 Recepção e boas vindas. 11.10 Início dos trabalhos: _ Apresentação das equipas _ Motivação e razão de ser do CROSSNET. _ Objectivos e áreas chave; estrutura e gestão do projecto (3 áreas chave de I&D mais a área chave de gestão). _ Prazos para a conclusão das várias sub-tarefas; deliverables e relatórios anuais. 12.30 A L M O Ç O
Agenda (tarde) 14.15 Apresentação detalhada de cada tarefa, prazos, relatórios, etc: 0 - Gestão 1 - Modelação de tráfego e QoS, 2 - Definição do MAC e técnicas de “cross-layer” 3 - Planeamento celular e optimização 15.50 Disseminação dos resultados: _ conferências, revistas e possibilidades para a realização dum Workshop do projecto _ página Web 16.00 Reunião de Gestão (recursos humanos, equipamento, bolsas e estágios, reuniões e outras missões, outros gastos; projectos final de curso e teses) 16.40 Conclusão da reunião
We-Move@Covilhã - Motivation • Nowadays, research on mobile and wireleess communications has a large margin for expansion • Institute for Telecommunication (IT) – Covilhã Laboratory follows this evolution with the participation of their members in European projects since 1992/93: • RACE-MBS, Mobile Broadband System • ACTS-SAMBA, System for Advanced Mobile Applications • IST-SEACORN, Simulation of Enhanced UMTS Access and Core Networks • SAMURAI, MULTIPLAN, CROSSNET, MobileMAN • Several COST (259, 273 e 290) EXPO’ 98
RACE-MBS (Mobile Broadband System): Demonstrator at 60 GHz and cellular planning tool
ACTS-SAMBA (System for Advanced Mobile Applications) Services and applications
WE-MOVE@Covilhã.it.pt.europe A Team for Wireless Planning for Mobile and Vehicular Technologies Mission • Help people on better communications • Contribute for the development of science and teaching through mobile telecommunicatioons
IST-SEACORN (Simulation of Enhanced UMTS Access and Core Networks)
Services Classification (new simuation scenarios) • Conversational • Voice • Video-telephony • HD Video-telephony • Interactive / Streaming • Multimedia Web browsing • Assistance in Travel • Interactive / Background • Instant Messaging Multimedia • Multi-class • Wireless LAN-Interconnection
Vehicular Office Environments and mobility
BHCA for Office environment VOI Voice VTE Video-telephony MWB Multimedia web browsing IMM Instant Messaging for Multimedia WLI Wireless LAN Interconnection average traffic per user 0< f <1
System Level Simulations hipothesis • Fraction of active users, f = 3 % • BCC Manhattan geometry with Node Bs, placed on crosses, spaced 230 m between eachother • 25 micro cells with sectorisaton • Gos thresholds: • (Pb)max = 2-3 % - blocking • (Pd)max = 1 % - call-dropping (Phf)max = 0.15 % (BCC) • Max. end-to-end delay = 150 ms.
System Level Simulations Initial Results: Blocking and SHO Failure Probability
System Level Simulations Initial Results: Throughput and delay (BCC)
Conclusions on IST-SEACORN (WP1) • Future 3.5 G systems have to be able to support nowadays applications and new ones, with different capacity and requirements • A set of scenarios was drawn by associating values of service usage with each of the eight deployment scenarios • Responding to the necessity of diminishing the burden on simulation work, a set of three simpler scenarios was produced • A traffic generation model was described in order to allow quantification and description of traffic offered to the E-UMTS network • This model is based on population and service penetration values in order to determine call generation rates for the constituent services within each of the selected scenarios
Conclusions (cont.) • For each service an activity model was presented, and the ON and OFF states were characterised by appropriate statistical distributions for source traffic • Application QoS and GoS requirements were addressed, including the impact of mobility • This completed the basic output to the SEACORN simulation work, whose objective was to determine the E-UMTS network behaviour and QoS response under these service assumptions • A glimpse on simulation results was presented
http://www.ubi.pt samurai@demnet.ubi.pt http://www.demnet.ubi.pt/~velez/Samurai.htm http://www.e-projects.ubi.pt/samurai http://www.formare.pt/samurai
Ergonomy -> VABAMPAC • VABAMPAC - Validation using bar code of the Administration of Medication to Patients
MULTiPLAN (Multi-service Cellular Plannning for Mobile Communication Systems Beyond 3G)
MULTIPLAN (http://www.e-projects.ubi.pt) • The project focus is multi-service cellular planning for mobile communication systems beyond 3G • It covers • Classification and characterisation of services and applications • Resource re-use, interference, and tele-traffic • System capacity and optimisation (system level simulation) • Costs and revenues
Outline • Motivation • Office scenario • Topology • Cell structure • Mobility model • Radio propagation model • The simulator • QoS measures • Capacity estimation • Cost/Revenue Model • Economic impact • Assumptions • Optimisation and profit • Conclusions
Motivation • WCDMA systems are interference limited, and there is an inter-dependence between capacity and coverage which causes the cell size to decrease when the traffic load carried by the cell increases • Traffic peaks generated by hot spots, such as highly crowded offices with high data rate services can run into coverage problems for macro and micro outdoor coverage, and they can jeopardise the entire network quality
The need for cost/revenue functions • In order to optimise E-UMTS networks and make simulation-based cellular planning tools available for network design, economic aspects, in the form of cost/revenue functions, are an essential issue • QoS and the expected net revenue are dependent • Therefore results for system capacity are important • Acceptable values are obtained in order to have an acceptable GoS (Grade of Service)
Impact of the throughput in revenues • A function for the throughput, having in consideration the QoS, as function of the radius of each cell is obtained • Using this function and the costs, a cost/revenue model is formulated • The main measures of the QoS considered are the call blocking probability, handover failure probability and delay.
Scenario • From the IST-SEACORN scenarios, only the office scenario and classes of service up to wideband are taken into consideration in this study.
Office scenario • Topology • Floor with 140 m x 60 m, and 1260 users (corresponding to a density factor of 0.15 user/m2).
y 60 140 x Office scenario (cont.) • Pico-Cellular structure • Small cells, low transmition powers (3dBW), indoor • E.g., users at home, office, commercial centres, theatres, airports. • Mobility model • Reference Point Group Mobility
Radio Propagation Model • Radio Propagation Model (COST 231) • Office Environment • Indoor Office • L = 37 + 30log10(R) + 18.3n((n+2)(n+1)-0.46) • L is path loss, R is the transmitter – receiver separation [m], and n is the number of floors in the path.
The simulator • The SEACORN simulator is a System Level Simulator (SLS) that captures the dynamic end-to-end behaviour of the all network, including • the dynamic user behaviour (e.g., mobility and variable traffic demands), • radio interface, • radio access network, • and core network • The SLS is separated into three parts • mobile environment, • control mechanisms, • performance evaluation.