Descrizione del progetto
Risolvere le interferenze in ambienti congestionati spettralmente oltre il 5G
Frequenze sempre più grandi vengono utilizzate per i sistemi di comunicazione wireless. Di conseguenza, i servizi di comunicazione wireless si stanno avvicinando molto alle bande di frequenza radar a corto raggio, che comprendono radar sia per auto che per interni. La coesistenza di radar e dispositivi di comunicazione nello stesso spettro nelle reti di prossima generazione potrebbe quindi portare a interferenze reciproche che comprometteranno la sicurezza e la velocità di comunicazione dei radar. Pertanto, il progetto OTFS-RADCOM, finanziato dall’UE, mira a risolvere il problema delle interferenze negli ambienti wireless congestionati spettralmente. A tal fine, svilupperà un’innovativa co-progettazione di sistemi radar e di comunicazione attraverso una forma d’onda ortogonale congiunta tempo-frequenza-spazio. Ciò consentirà di implementare entrambe le funzionalità su un singolo hardware. Il lavoro del progetto potrebbe anche avanzare oltre le tecnologie 5G.
Obiettivo
Wireless communication systems are using increasingly larger carrier frequencies, from 900 MHz for 2G cellular, over 2 GHz for 3G, 2.5 GHz for 4G/LTE, and leaping to 28 GHz in 5G. Similar trends are visible for WiFi-based communication, with the 802.11ad standard operating at 60 GHz. This places wireless communication services very close to short range radar frequency bands. Such radars operate at frequencies around 24 GHz, 63 GHz, as well as at 76-81 GHz, and include both automotive radars and indoor personal radars. In next-generation networks, a large number of spectrally coexistent radars and communication devices can thus bring up the problem of mutual interference, which threatens radar safety and communication throughput. The objective of this action is to provide a new and industrially relevant solution to the problem of interference in spectrally congested wireless environments. To this aim, we propose a novel co-design of radar and communications (RadCom) systems via a joint Orthogonal Time-Frequency-Space (OTFS) waveform, which enables both functionalities to be implemented on a single hardware. By multiplexing symbols in the delay-Doppler domain, the OTFS can overcome major limitations of the Orthogonal Frequency Division Multiplexing (OFDM) waveform (the de-facto standard for downlink communications), such as high peak-to-average-power ratio (PAPR), small channel coherence time and inter-carrier interference. The OTFS has recently been proposed for communication and we believe it holds great potential for radar as well. In close collaboration with local industry (Volvo, Ericsson), we propose to (i) derive and experimentally validate OTFS received signal models, (ii) design OTFS radar signal processing chain, and (iii) design an integrated OTFS RadCom solution. If successful, the project results can be employed in a wide range of applications (e.g. high-speed automated vehicles, dual-functional radar base stations) and contribute to beyond 5G standards.
Campo scientifico
- engineering and technologyelectrical engineering, electronic engineering, information engineeringinformation engineeringtelecommunicationstelecommunications networksmobile network5G
- engineering and technologyelectrical engineering, electronic engineering, information engineeringelectronic engineeringsignal processing
- engineering and technologyelectrical engineering, electronic engineering, information engineeringinformation engineeringtelecommunicationstelecommunications networksmobile network4G
- engineering and technologyelectrical engineering, electronic engineering, information engineeringinformation engineeringtelecommunicationsradio technologyradar
Parole chiave
Programma(i)
Argomento(i)
Meccanismo di finanziamento
MSCA-IF - Marie Skłodowska-Curie Individual Fellowships (IF)Coordinatore
412 96 GOTEBORG
Svezia