STO-Activities: (no title)
Activity title:
Cosite-Interference Cancellation for Military Systems and Defence Applications
Activity Reference:
IST-222
Panel:
IST
Security Classification:
NATO UNCLASSIFIED
Status:
Proposed
Activity type:
RTG
Start date:
2024-09-01T00:00:00Z
Actual End date:
2027-09-01T00:00:00Z
Keywords:
Collocation, Cosite, Electromagnetic Spectrum, Electronic Warfare, FullDuplex, KnownInterference Cancellation, oufofband, SelfInterference Cancellation, Wireless Communications
Background:
IST-175-RTG has already emphasized that similar cancellation concepts might also be applicable to cope with cosite-interferences. Cosite-interference denotes any type of interference that one can observe in case of several collocated radio transceivers either on a single host platform (e.g., a military vehicle) or stand-off within radio range. Besides self-interference it can also be known-interference, co-channel interference, adjacent channel interference etc.
While self-interference occurs in a single transceiver, all the other types of interferences typically appear across multiple transceivers. In known-interference cancellation the transmitted information is known to the receiver in digital form. The transmitter needs not to be at the same location. Co-channel or adjacent channel interference denote interferences that are caused by other transceivers in radio range using the same or an adjacent frequency channel, respectively. The information transmitted by these interfering transceivers is typically unknown.
In a follow-on activity to IST-175-RTG it shall be assessed to which extent the IBFD technology can also be used for coping with all the other types of interferences besides self-interference. By the generalization from self-interference (caused on the same transceiver) to other types of interferences (caused across multiple transceivers) new scientific challenges need to be solved. For instance, when using multiple transceivers, possible offsets in carrier and/or sampling frequencies need to be minimized.
In addition, the assessment shall also include out-of-band full-duplex scenarios. While in in-band full-duplex scenarios self-interference occurs within the same frequency channel which is used for transmit and receive operations at the same time, in out-of-band full-duplex scenarios interference occurs between different channels in the same frequency band or even between different frequency bands with larger separation. Such aspects are of relevance, e.g., because of intermodulation products or harmonics.
Objectives:
This RTG will address the following scientific objectives:
• identify cosite challenges in communication, radar, navigation and electromagnetic warfare scenarios
• provide definitions for the different types of cosite interferences (known-interference, co-channel, etc.)
• classify in-band and out-of-band interference cancellation problems
• develop interference cancellation methods for suppression of interference in co-site radio configurations for improving connectivity
• generate and suppress interference for securing wireless communications at the physical layer
- e.g., for preventing malicious use of the spectrum while allowing authorized use (e.g., operating malicious drones is restricted but not authorized drones)
• potentially, characterize the technical and tactical advantages of cosite-interference cancellation in larger networks/systems
Topics:
The RTG will focus on the following scientific topics:
• solutions for cosite-interference cancellation
- both, in analog and in digital domain
- with or without prior knowledge of transmitted signals
- ensuring low latency, but not excluding higher latency solutions
- solutions for high, medium and low levels of interference
• considering intentional (e.g., jamming) and unintentional interference
- possibly also including multi-antenna designs
• potentially, tactical/operational aspects of cosite-interference cancellation in military systems and defence applications
Contact:
Open2Partners:
Title:
Created at 29/04/2024 12:00 by System Account
Last modified at 16/05/2024 10:00 by System Account
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