Project description
Solving interference in spectrally congested environments beyond 5G
Increasingly larger frequencies are being used for wireless communication systems. As a result, wireless communication services are getting very close to short-range radar frequency bands, which include both automotive and indoor personal radars. The coexistence of radars and communication devices in the same spectrum in next-generation networks may therefore lead to mutual interference that will compromise radar safety and communication throughput. The EU-funded OTFS-RADCOM project therefore aims to solve the problem of interference in spectrally congested wireless environments. To this end, it will develop an innovative co-design of radar and communications systems via a joint orthogonal time–frequency–space waveform. This will make it possible to implement both functionalities on a single hardware. The project's work could also advance beyond-5G technologies.
Objective
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.
Fields of science
- 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
Keywords
Programme(s)
Funding Scheme
MSCA-IF - Marie Skłodowska-Curie Individual Fellowships (IF)Coordinator
412 96 GOTEBORG
Sweden