Hybrid wireless access system with unique addressing (SAWHAU)
Project financed from „PNCDI-2”
Contract: 12-126 / 01.10.2008
Contractor: CENTRUL NATIONAL DE MANAGEMENT PROGRAME (CNMP)
Coordinator: Universitatea POLITEHNICA din Bucuresti
Duration: 2008 – 2011
ABSTRACT
The project aims to design, develop and test a hybrid wireless access solution based on the convergence of IP-based wireless technologies (WiFi, WiMax) and IP compatible cellular systems (GPRS / UMTS) likely to allow implementation of Voice over IP (VoIP) type solutions and data transfer and allowing also reduced access costs.
The project takes into account a comparative analysis of implementation modalities such as:
1. Using of Media Independent Handover (MIH) procedures for connection transfer in order to reduce costs and maintain continuity of access to the VoIP service;
2. Using of location procedures (based on GPS or other alternative solution) for directing the transfer in order to reduce costs.
Comparative analysis is considering both technological and market availability of the necessary equipment and general price control implementation and operation of such a hybrid system.
We propose to use authentication and authorization procedures for access to each network separately and validate the transfer. The project also proposes an experimental model for testing and validating at least one solution of the types described above.
The main goal of the project is to develop a solution of voice and data communication at small or medium company level, based on optimizing access costs, which is why the project will develop a communications application for voice and data, representative in order to test the experimental model.
OBJECTIVES
This project proposes a solution of developing local wireless networks of small and medium dimension ( like the internal networks of a company) for voice applications and data in some cases of mobile users. The network selection will be made based on the degree of coverage and costs of access, the routing will be made through MIH, in accordance with the standard 802.21.
The main contribution of the project is the development of the functions of interoperability, based on the Resource Management System (RMS), in accordance with the standard 802.21. As this standard is still being defined, the choice of the ways of selection and use of the equipment is very important for maintain the systems costs at a lowest level.
An alternative solution is to simplify the functions of interoperability using operations of tracking of the user and re-routing of the connexion in his area of cover. The use of some MIH procedures based on tracking represents another major contribution of the project in the domain of research regarding interoperability of wireless networks.
The general objective of the project consists in the development and validation of an experimental model for the communication system described above.
Our first technical-scientific objective consists in defining the Resource Management System for creating a wireless network at small or medium level in order to minimise the costs of access.
The second technical- scientific objective is defining the Modules of Interoperability between the different wireless access networks (both at mobile level terminal as at central unit level) in order to achieve a correct routing of data, using only one access address, and ensuring a minimisation of costs at the level of every user.
These objectives are being defined in conformity with the 802.21 standard, based on the use of MIH concept and of the associated systems, Resource Management System and Interoperability Modules, which are going to be developed in a unitary manner.
Our projects technical objective is to specify and implement at experimental level the unique addressing hybrid wireless access system, composed of a central module and terminal modules, obtained by including sub0modules of interoperability and administration of resources and particular functions.
ACTIVITIES
2008 Stage 1
• Define requirements for hybrid wireless access system with unique addressing
• Define system requirements
o Define general technical requirements and interconnection between access systems
o Define requirements for application data
o Define business model
o Define technical aspects on location
o Define requirements for voice application
• Achievement Project web site
2009 Stage 2
• System architecture and define the characteristics of the main components
• Analysis of wireless access technologies and requirements on standard 802.21 MIH
o General analysis of wireless access technologies and the MIH 802.21 standard requirements
o Analysis of technological requirements for access UMTS / 3G
o Technological requirements analysis for WiFi and DECT
o WiMAX access technology requirements analysis
o Requirements analysis technology for real-time applications
o Study the usage of MIH function in a hybrid wireless system for reducing access costs
• Study the usage tracking procedures in a wirelesss hybrid system for reducing access costs
o Study procedures location in hybrid systems based on MIH cellular systems
o Study the possibility of implementing procedures at the terminal location
o Cost analysis of access
o Study procedures satellite-based location
o Study the possibility of implementing the procedures leading network location / hub
• Comparative analysis of solutions decrease the cost of access and system architecture definition
o Comparative analysis solutions decrease overall costs of access and system architecture definition
o Comparative analysis of solutions implementation
• Hw and Sw Specifying modules experimental model system
o General Specification HW and SW modules of the experimental model of the system and interconnection functions MIH
o Specifying Authentication and Security
o Specification of functions associated charging,
o Specify specific functions related to localization subsection
o Specifying functions on conversational type transmissions
• Dissemination of research results
2010 Stage 3
• Designing the experimental model
• Design modules experimental model of hybrid wireless access system with unique address
o Designing interconnection modules and functions and associated access MIH
o Designing specific functions of authentication and security
o Designing specific functions osociate charging,
o Designing specific functions related to localization
o Designing specific functions conversational type transmissions
• Defining and designing applications for voice and data transmission representative validate system performance
o Specifying ways experimental model validation and definition of data transmission applications
o Design of data transmission applications
o Defining how to integrate applications into the system
o Defining and designing VoIP applications
• Simulation experimental model
o Access network simulation experimental model
• Dissemination of research results
• Organization seminar (with participation of partners in the project RIWCoS)
o Participation seminar
2011 Stage 4
• Developing and testing an experimental model system to address unique
• Developed and tested primary system modules
o Developing and testing functions switching, access and location
o Integration and testing of primary terminal module
o Integration and testing of primary central module
o Testing primary function of location
• Refining system modules and test experimental model system to address unique
o Refining and testing functions switching, access and location
o Integration and testing of terminal module
o Central module integration and testing
o Testing functions localization
• Developing and testing applications including voice and data transmission representative validate system performance
o Testing data transmission applications
o Development of data transmission applications
o Integration of VoIP and data transmission
o Developing and testing VoIP
• Dissemination of research results
• Organization roundtable with the participation of potential beneficiaries (TIB2010, Day of Polytechnic)
o Governance Roundtable
o Participation Roundtable
2011 Stage 5
• Optimization and system validation
• Development and optimization of wireless access system model with unique address
o Developing and testing the switching function, localization and implementation of access
o Integration and testing of primary terminal module; Implement security features
o Integration and testing of primary central module; Implementation charging function
o Testing primary functions localization model
• Optimization and implementation of the representative system
o Testing data transmission applications
o Application development and data transmission security
o Integration of VoIP and data transmission
o Developing and testing VoIP
• Demonstration and validation system
o Testarea de ansamblu si demonstrarea functionala a sistemului
o Authentication and Security Testing
o Testing functions associated charging
o Testing functions associated location
o Testing functions on conversational type transmissions
• Dissemination of research results and the identification of priority technology
CONSORTIA
- Universitatea Politehnica Bucuresti (UPB)
prof.dr.ing. Octavian FRATU Facultatea de Electronica, Telecomunicatii si Tehnologia Informatiei, Centrul de Cercetare pentru Comunicatii si Prelucrarea Semnalelor, Spl. Independentei 313, 060042 Bucuresti
ofratu (at) elcom.pub.ro - Universitatea din Pitesti (UPIT)
prof.dr.ing. Gheorghe GAVRILOAIA Targul din Vale 1, Pitesti, Judet Arges
ggavriloaia (at) gmail.com - BEIA Consult International (BEIA)
ec.ing. Marius ENACHE BEIA Consult International, Str. Peroni, Sector 4, Bucuresti
marius.enache (at) beia.ro - Agentia Spatiala Romana (ROSA)
drd.ing. Ion NEDELCU Agentia Spatiala Romana, Str. Mendeleev 21-25, Sector 1, Bucuresti
sorin.andrei (at) rosa.ro - Institutul National de Cercetare Dezvoltare in Informatica ICI Bucuresti (ICI)
drd.mat. Emil STANESCU ICI, Str. Maresal Averescu 8-10, Sector 1, Bucuresti
stanescu (at) ici.ro