Radio communication system with а high degree of protection of information against non-allowed access

Valentina Hristova; Galina Cherneva; Denitsa Borisova

doi:10.1117/12.2600499

12 September 2021 Radio communication system with а high degree of protection of information against non-allowed access

Valentina Hristova, Galina Cherneva, Denitsa Borisova

Proceedings Volume 11866, Electro-Optical and Infrared Systems: Technology and Applications XVIII and Electro-Optical Remote Sensing XV; 1186612 (2021) https://doi.org/10.1117/12.2600499
Event: SPIE Security + Defence, 2021, Online Only

Conference Poster

Abstract

A characteristic feature of the modern level of development of radio communication systems is the problem of increasing their security and resilience in transmitting information. There are increasing requirements for the secrecy of transmitted information, both for military and civilian radiocommunication systems. The protection of information from unauthorized access and the security of the connection are based on many different methods of hiding messages so that they are incomprehensible to a eavesdropper who has intercepted a hidden message. The paper presents a method of an improved information protection against non-allowed access by scrambling and descrambling on two levels. On the first level this process directly concerns the primary signal, which is a carrier of information in digital kind. The second level has controlling functions in regard to the random sequences. They change in time according to a given dependency defined by a code combination. The input information spectrum expands by switching a number of pseudo random sequences. Switching is controlled by another similar sequence, the symbols of which last much longer. The proposed method is characterized by advantages in relation to the already-known methods of protection against the non-allowed access with information transmitting in the expanded spectrum systems. The disadvantage of the system is the necessity of elements for coordinating and synchronizing the information and control components of the system. The method can be applied to the modern telecommunication systems of expanded spectrum with high requirements related to the protection of information against non-allowed access. One possible application is in remote sensing in terms the acquired data requiring protection against non-allowed access. This work is supported by Bulgarian National Science Fund under Contract number KP-06-M27/2 (КП-06-М27/2).

Conference Presentation

Citation Download Citation

Valentina Hristova, Galina Cherneva, and Denitsa Borisova "Radio communication system with а high degree of protection of information against non-allowed access", Proc. SPIE 11866, Electro-Optical and Infrared Systems: Technology and Applications XVIII and Electro-Optical Remote Sensing XV, 1186612 (12 September 2021); https://doi.org/10.1117/12.2600499

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