Descripción del proyecto
Resolución de interferencias en entornos espectralmente congestionados más allá de la 5G
Los sistemas de comunicación inalámbrica utilizan un rango de frecuencias cada vez mayor. Como resultado, los servicios de comunicación inalámbrica están aproximándose mucho a las bandas de frecuencia de radar de corto alcance, que incluyen radares de corto alcance para automóviles y sistemas personales de posicionamiento en interiores. Por lo tanto, la coexistencia de radares y dispositivos de comunicación en el mismo espectro en las redes de nueva generación puede derivar en interferencias mutuas que afectarán la seguridad del radar y el rendimiento de la comunicación. Así, el objetivo del proyecto financiado con fondos europeos OTFS-RADCOM es resolver el problema de las interferencias en entornos inalámbricos espectralmente congestionados. Para ello, desarrollará un codiseño innovador de sistemas de radar y comunicaciones a través de una forma de onda ortogonal conjunta de tiempo, frecuencia y espacio, que permitirá poner en práctica ambas funcionalidades en un solo «hardware». El trabajo del proyecto también podría avanzar más allá de las tecnologías 5G.
Objetivo
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.
Ámbito científico
- 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
Palabras clave
Programa(s)
Régimen de financiación
MSCA-IF - Marie Skłodowska-Curie Individual Fellowships (IF)Coordinador
412 96 GOTEBORG
Suecia