Dynamic Spectrum Access System based on Geolocation Databases
The main scope of the GeoSpectrum project is to develop a system that allows dynamic access of secondary (unlicensed) radio equipment to radio frequency spectrum, based on accessing spectrum geolocation databases that contain information regarding the availability of different frequency bands depending on the geographic location. The designed and implemented system will be flexible and scalable, allowing the addition of new services/information and the extension of the covered geographical area. Three pilot areas (an urban, a suburban and a rural one) will be chosen as target for the envisioned system, to illustrate its feasibility in different environments. The radio coverage for different primary (licensed) radio networks (DVB-T2, 2G/3G/4G/5G) will be estimated using the HTZ Communications software and several propagation models. For validating and optimizing the estimations, measurement campaigns will be conducted in all the pilot areas. Afterwards, the spectrum geolocation databases will be designed and implemented, using spectrum availability data extracted from the coverage maps. Blockchain-based mechanisms for accessing the databases will also be developed. Moreover, hybrid spectrum sensing methods will be developed, which combine local sensing with data read from the spectrum geolocation databases. The GeoSpectrum system will be tested in several different use cases and scenarios, for all the pilot areas, to validate its performance and robustness.
WP 1. System architecture design and specification and building and optimization of coverage maps
Act. 1.1 System requirement specifications
Act. 1.2 Database structure design
Act. 1.3 Definition of use cases and scenarios
Act. 1.4 Overall architecture design
Act. 1.5 Build DVB-T2 coverage maps for urban, suburban and rural areas
Act. 1.6 Optimize the DVB-T2 coverage maps by tuning various propagation models
Act. 1.7 Build 2G/3G/4G/5G coverage maps for urban, suburban and rural areas
Act. 1.8 Optimize 2G/3G/4G/5G the coverage maps by tuning various propagation models
Act. 1.9 Dissemination of results
WP 2. Implementation of spectrum geolocation databases and design and implementation of hybrid spectrum sensing methods
Act. 2.1 Integrate the information from the DVB-T2 coverage maps into the spectrum geolocation databases
Act. 2.2 Integrate the information from the 2G/3G/4G/5G coverage maps into the spectrum geolocation databases
Act. 2.3 Design and implement differentiated database access mechanisms
Act. 2.4 Develop hybrid spectrum sensing algorithms that combine traditional spectrum sensing methods with information from the spectrum geolocation database
Act. 2.5 Implement and optimize the developed hybrid spectrum sensing algorithms
Act. 2.6 Develop and implement blockchain-enabled spectrum sharing mechanisms
Act. 2.7 Dissemination of results
WP 3. Testing and validation of the GeoSpectrum system
Act. 3.1 Testing and validating the functionality of the GeoSpectrum system in use cases and scenarios corresponding to urban areas
Act. 3.2 Testing and validating the functionality of the GeoSpectrum system in use cases and scenarios corresponding to suburban areas
Act. 3.3 Testing and validating the functionality of the GeoSpectrum system in use cases and scenarios corresponding to rural areas
Act. 3.4 Dissemination of results
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