Abstract
The article discusses the technology of forming signals used in mobile, information and telecommunication systems, and also provides an analysis of promising technologies that can be used in wireless communication systems of broadband access. It is shown that the widely used modulation scheme with orthogonal frequency division (OFDM) has a number of drawbacks, which can lead to a decrease in system performance. Alternative technologies for generating signals are presented, in particular, a technology based on windowed signal processing (W-OFDM), a technology based on time division (w-OFDM); UFMC technology and others to eliminate the disadvantages of OFDM technology. New points of view are proposed on the use of multi-carrier transmission technology in the form of multiplexing with orthogonal frequency division (in order to increase the security of modern wireless broadband access communication systems from external and internal threats), a class of non-linear discrete cryptographic sequences to form a physical data carrier – signal.
Highlights
Modern wireless systems belong to multiuser systems
The article discusses the technology of forming signals used in mobile, information and telecommunication systems, and provides an analysis of promising technologies that can be used in wireless communication systems of broadband access
Alternative technologies for generating signals are presented, in particular, a technology based on windowed signal processing (W-orthogonal frequency division multiplexing (OFDM)), a technology based on time division (w-OFDM); UFMC technology and others to eliminate the disadvantages of OFDM technology
Summary
Modern wireless systems (for example, satellite systems, mobile telephony systems) belong to multiuser systems. In order to achieve the above objectives for 5G networks, the following are considered: use of the spectrum in the millimeter range [5]; new types of signal modulation and coding methods; multiple access methods; improved technologies for building antennas and networks architecture [5,6]. It is worth pointing out studies devoted to: orthogonal frequency division multiplexing with filtering (F-OFDM) [7,8,9]; spatial diversity technologies (MIMO) [10]; radiocommunication cloud networks (C-RAN) [11], orthogonal frequency division technology with coding (C-OFDM) [12] and many others
Sign-in/Register to view highlights & summary Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
