Projects

Quality of service management for the UMTS mobile communication system

Data Start Project

Dec-2001

UPC Project Responsible

Ferran Casadevall

Data End Project

Dec-2004

UPC Project Researchers

Ramon Agusti
Ramon Ferrus
Antoni Gelonch
Jordi Perez-Romero
Oriol Sallent
Anna Umbert

In any wireless system there is clearly a very scarce resource, which is the available bandwidth. 3G mobile Communications Systems intend to provide several classes of services at different bit rates while assuring a Quality of Service (QoS) for each one. The only way to harmonise these two contradictory points (scarce bandwidth and a stringent QoS) is with a proper management of the available radio resources. This project aims at providing advanced Quality of Service (QoS) management solutions for the support of integrated voice and data services within the context of Universal Mobile Telecommunication System (UMTS). Even thought, the first implementations of UMTS are mainly focused on an efficient provision of circuit switched services (Release 99 of 3GPP specs), and packet switched services are still considered as complementary, future evolutions in UMTS system (Release 2000 and further) are focusing in an all-IP end to end architecture, and consequently the packet switched services in the air interface will gain momentum. In that context, the optimisation of capacity in a multiservice environment is going to be faced definitively and the intelligent management of the radio resources is essential in order to fulfil the required QoS. To asses the project objectives, three complementary and at the same time concurrent approaches have been selected, namely: 

  •  Analysis of All-IP architectures for the UMTS Terrestrial Radio Access Network (UTRAN)  
  • Evaluation of the QoS algorithms performances by means of simulations
  • Validation of the benefits of the developed QoS algorithms by means of a testbed able to manage multimedia IP based applications.

Publications Glamour

Anna Umbert, Pilar Díaz , Estudio del impacto de la compresión de cabeceras en enlaces radio para el sistema de 3G UMTS , 14a Jornadas TELECOM I+D , Madrid-Barcelona ,
23/Nov/2004 to 25/Nov/2004


J. Sánchez-González, J. Pérez-Romero, O.Sallent, R.Agustí , Metodología Combinada de Planificación y Gestión de Recursos Radio para el Despliegue de Redes 3G W-CDMA , XIII Jornadas Telecom I+D 2003 , Madrid(Spain) ,
31/Oct/2004 to 02/Nov/2004


J. Pérez-Romero, O. Sallent, R. Agustí , A novel approach for multicell load control in W-CDMA , 5th International Conference on 3G Mobile Communications Technologies , London(England) ,
18/Oct/2004 to 20/Oct/2004


J. Perez-Romero, O. Sallent, R. Agusti , On the Capacity Degradation in W-CDMA Uplink/Downlink due to Indoor Traffic , IEEE Semiannual Vehicular Technology Conference (VTC 2004-Fall) ,
26/Sep/2004 to 29/Sep/2004


J. Sánchez-González, O. Sallent, J. Pérez-Romero, R. Agustí , Improved 3G W-CDMA Network Deployment combining Radio Resource Management and Radio Network Planning Techniques , 7th International Symposium on Wireless Personal Multimedia Communications (WPMC 2004) , Abano Terme(Italy) ,
12/Sep/2004 to 15/Sep/2004


A. Umbert, P. Díaz , On the importance of error memory in UMTS Radio Channel emulation using Hidden Markov Models (HMM) , 15th IEEE International Symposium on Personal, Indoor and Mobile Radio Communications (PIMRC 2004) , Barcelona (Spain) ,
05/Sep/2004 to 08/Sep/2004


J. Pérez-Romero, O. Sallent, R. Agustí , Impact of indoor traffic on W-CDMA capacity , 15th IEEE International Symposium on Personal, Indoor and Mobile Radio Communications (PIMRC 2004) , Barcelona (Spain) ,
05/Sep/2004 to 08/Sep/2004


J. Pérez-Romero, O. Sallent, R. Agustí , On dimensioning UTRA-FDD Downlink Shared Channel , 15th IEEE International Symposium on Personal, Indoor and Mobile Radio Communications (PIMRC 2004) , Barcelona (Spain) ,
05/Sep/2004 to 08/Sep/2004


R. Ferrús, J. Rendon, A. Sfairopoulou, X. Revés, F. Casadevall , On the Impact of Prioritised Radio Resource Control on TCP Connections in a Downlink UMTS Channel , Proceedings of 15th IEEE International Symposium on Personal, Indoor And Mobile Radio Communications (PIMRC04) , Barcelona (Spain) ,
05/Sep/2004 to 08/Sep/2004


J. Perez-Romero, O. Sallent, D. Ruiz, R. Agusti , An Admission Control Algorithm to Manage High Bit Rate Static Users in W-CDMA Systems , 13th IST Mobile & Wireless Communications Summit 2004 , Lion(France) ,
27/Jun/2004 to 29/Jun/2004


J. Rendon, R. Ferrús, F. Casadevall, A. Sfairopoulou , Experimental analysis of TCP behaviour over a downlink UMTS channel under different scheduling strategies , 13th IST Mobile & Wireless Communications Summit 2004 , Lion(France) ,
27/Jun/2004 to 29/Jun/2004


J. Pérez-Romero, O. Sallent, D. Ruiz, R. Agustí , PLEBAC: A New Downlink Admission Control for UTRAN-FDD , Mobile Venue 2004 , Athens( Greece) ,
27/May/2004 to 28/May/2004


F. Adelantado, O. Sallent, J. Pérez-Romero, R. Agustí , Impact of Traffic Hotspots in 3G W-CDMA Networks , Proceedings of the 59Th Vehicular Technology Conference (VTC2004-Spring) , Milan (Italy) ,
17/May/2004 to 19/May/2004
, ISBN: 0-7803-8256-0/04


J. Sánchez-González, J. Pérez-Romero, O. Sallent, R. Agustí , Downlink Radio Resource Management Approach for 3G W-CDMA Networks , Proceedings of the 59Th Vehicular Technology Conference (VTC2004-Spring) , Milan (Italy) ,
17/May/2004 to 19/May/2004
, ISBN: 0-7803-8256-0/04


M. Portolés, J. L. Valenzuela, D. Pérez, O. Sallent , Link recovery in IEEE 802.11 WLAN using WDS' , Proceedings of the 59Th Vehicular Technology Conference (VTC2004-Spring) , Milan (Italy) ,
17/May/2004 to 19/May/2004
, ISBN: 0-7803-8256-0/04


O. Sallent, J. Pérez-Romero, R. Agustí , UMTS Radio Interface Management: A Downlink Case Study , 6th International Symposium on Wireless Personal Multimedia Communications (WPMC 2003) , Yokohama(Japan) ,
21/Oct/2003 to 22/Oct/2003


L. Alonso, R. Ferrus, R. Agustí , MAC-PHY Enhancement for 802.11b WLAN Systems via Cross-layering , IEEE 57th Vehicular Technology Conference (VTC 2003-Fall) , Orlando(USA) ,
06/Oct/2003 to 09/Oct/2003


O. Sallent, J. Pérez-Romero, R. Agustí , Optimizing Statistical Uplink Admission Control for W-CDMA , IEEE 57th Vehicular Technology Conference (VTC 2003-Fall) , Orlando(USA) ,
06/Oct/2003 to 09/Oct/2003


J. Pérez-Romero, O.Sallent, R.Agustí, F.Casadevall , Performance Analysis of Radio Resource Management Strategies in UTRAN W-CDMA , 1st International Working Conference on Performance Modelling and Evaluation of Heterogeneous Networks (HET-NETs’03) , Ilkley(UK) ,
24/Sep/2003 to 25/Sep/2003


J. Pérez-Romero, O.Sallent, G.Parés, R.Agustí , Power and Code Shortage in UTRA-FDD Downlink Dedicated Channels , 14th IEEE International Symposium on Personal, Indoor and Mobile Radio Communications (PIMRC 2003) , Beijing(China) ,
07/Sep/2003 to 11/Sep/2003


J. Pérez-Romero, O. Sallent, N. García, R. Agustí , On Managing Uplink Videophone and Web Browsing Traffic in UTRA W-CDMA , 14th IEEE International Symposium on Personal, Indoor and Mobile Radio Communications (PIMRC 2003) , Beijing(China) ,
07/Sep/2003 to 11/Sep/2003


A. Hernandez, A. Valdovinos, F. Casadevall , Uplink Call Admission Control Techniques for Multimedia Packet Transmission in UMTS WCDMA System , IEEE Wireless Communications and Networking Conference (WNCN2003) , New Orleans(USA) ,
12/Jul/2003 to 20/Jul/2003


A. Hernandez, A. Valdovinos, F. Casadevall , Capacity Analysis and Performance Evaluation of Call Admission Control for Multimedia Packet Transmission in UMTS WCDMA System , 5th IEE European Personal Mobile Communications Conference (EPMCC'03) , Glasgow(Scotland) ,
22/Apr/2003 to 25/Apr/2003
, ISBN: 0-7803-7589-0/02


L. Almajano, J. Perez-Romero , Packet scheduling algorithms for interactive and streaming services under QoS guarantee in a CDMA system , IEEE Vehicular Technology Conference (fall) , Vancouver (Canada) ,
24/Sep/2002 to 29/Sep/2002


A. Hernández, A. Valdovinos, F. Casadevall , Capacity analysis for uplink connection admission control in CDMA packet transmission systems , 13th IEEE International Symposium on Personal, Indoor and Mobile Radio Communications(PiMRC 2002) , Lisboa(Portugal) ,
16/Sep/2002 to 18/Sep/2002
, ISBN: 0-7803-7589-0/02


A.Umbert, P. Diaz , URAE: a Tool to Analyze Packet Services BasedApplications in UMTS , 13th IEEE International Symposium on Personal, Indoor and Mobile Radio Communications(PiMRC 2002) , Lisboa(Portugal) ,
16/Sep/2002 to 18/Sep/2002
, ISBN: 0-7803-7589-0/02


J. Bada, F. Casadevall , Service disciplines performance for GPRS with link adaptation and heterogeneous traffic , 13th IEEE International Symposium on Personal, Indoor and Mobile Radio Communications(PiMRC 2002) , Lisboa(Portugal) ,
16/Sep/2002 to 18/Sep/2002
, ISBN: 0-7803-7589-0/02


J. Perez-Romero, O. Sallent, R. Agusti, J. Sanchez , Average and Peak interference Management in W-CDMA , 13th IEEE International Symposium on Personal, Indoor and Mobile Radio Communications(PiMRC 2002) ,
16/Sep/2002 to 18/Sep/2002


J.Rendon, F. Casadevall, J. Carrasco , Wireless TCP proposals with proxy servers in the GPRS network , 13th IEEE International Symposium on Personal, Indoor and Mobile Radio Communications(PiMRC 2002) ,
16/Sep/2002 to 18/Sep/2002
, ISBN: 0-7803-7589-0/02


A. Hernandez, A. Valdovinos, F. Casadevall , Capacity Analysis and Call Admission Techniques for CDMA Packet Transmission Systems , IEEE International Workshop on Mobile and Wireless Communications Network (WMWC2002) , Stockholm (Sweden) ,
09/Sep/2002 to 11/Sep/2002
, ISBN: 0-7803-7605-6/02


J. Perez-Romero, O. Sallent, R. Agusti, G. Pares , A downlink admission control algorithm for UTRA-FDD' , 4th IEEE Conference on Mobile and Wireless Communications Networks (MWCN 2002) , Stockholm (Sweden) ,
09/Sep/2002 to 11/Sep/2002


J. Sanchez, J. Perez-Romero, O. Sallent, R. Agusti , Mixing Conversational and Interactive Traffic in the UMTS Radio Access Network , 4th IEEE Conference on Mobile and Wireless Communications Networks (MWCN 2002) , Stockholm (Sweden) ,
09/Sep/2002 to 11/Sep/2002


J. Perez-Romero, O. Sallent, R. Agusti , Impact of User Location in W-CDMA Downlink Resource Allocation , IEEE International Symposium on Spread Spectrum Techniques and Applications (ISSSTA 2002) , Prague (Czech Republic) ,
02/Sep/2002 to 05/Sep/2002


R. Agusti, J. Perez-Romero, S. Ruiz, O. Sallent , Simulation tool to evaluate Radio Resource Management algorithms for UMTS , OPNETWORK 2002 Conference , Whasington D.C(USA) , 25/Aug/2002


J. Bada, F. Casadevall, J. Jiménez and E. Medrano , Radio resource management in GPRS with Quality of Service , IST Mobile & Wireless Telecommunications Summi , Thessaloniki(Greece) ,
16/Jun/2002 to 19/Jun/2002


J. Perez-Romero, O. Sallent, R. Agusti , Downlink Packet Scheduling for a Two-Layered Streaming Video Service in UMTS , IST Mobile & Wireless Telecommunications Summit , Thessaloniki(Greece) ,
16/Jun/2002 to 19/Jun/2002


A. Umbert, P. Diaz , Packet Data Services over Wireless Connections Study , Proceedings of the IEEE Vehicular Technology Conference 2002 Spring , Birmingham, Alabama (USA) ,
06/May/2002 to 09/May/2002


J. Pérez-Romero, R. Agustí, O. Sallent , Analysis of a Type II Hybrid ARQ Strategy in DS/CDMA Packet Transmission Environment , IEEE Transactions on Communications , Aug-2003 , Vol: 51 , Nº: 8 , pp: 1249 - 1253 , ISSN: 0090-6778/03


L. Alonso, R. Ferrus, R. Agustí , WLAN Throughput Improvement via Distributed Queuing MAC , IEEE Communications Letters , Apr-2005 , Vol: 9 , Nº: 4 , pp: 310 - 312 , ISSN: 1089-7798/05


Departament de Teoria del Senyal i Comunicacions. TSC.
UPC . Universitat Politècnica de Catalunya BarcelonaTech