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article-T-Comm-3-10-2019

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ESTIMATION OF THE EFFICIENCY OF JOINT USE OF RADIO FREQUENCY SPECTRUM WITH MODERN WIFI RADIO ACCESS SYSTEMS AND MULTIFREQUENCY ULTRA WIDEBAND RADIO ACCESS SYSTEMS

Alexey A. Frolov, Moscow Technical University of Communications and Informatics, frolovrt0601@yandex.ru

 

Abstract
When introducing new radio access systems and their operation on public networks, it is necessary to evaluate the effectiveness of the implementation of these radio access systems and the efficiency of their use of the radio frequency spectrum. Sharing the radio frequency spectrum is one of the methods to increase the efficiency of using the frequency resource. One of the technical solutions to the problem of increasing the efficiency of spectrum use is the use of multi-frequency ultra-wideband (UWB) radio access systems that work together with modern radio access systems in the same frequency range. This article proposes a method for assessing the effectiveness of the use of the radio frequency spectrum by several radio access systems operating in the same frequency range: known systems and implemented radio access systems. The evaluation of the effectiveness of the use of the radio frequency spectrum is considered using an example of a multi-frequency UWB system combining OFDM technology and code separation of subscribers, as well as a multi-frequency UWB system with discrete frequency signals in conjunction with modern narrow-band and wideband radio access systems of IEEE 802.11 standard in the 5 GHz band. The estimation of the gain obtained from the sharing of the radio frequency spectrum by the known and implemented radio access systems considered in this paper is made. In the case of used high-speed UWB radio communication network operator significantly increases the scope of services, increasing the efficiency of the space division multiplexing access network that accelerates the transition to micro and femto-combs and allows you to expand the possibility of building the infrastructure «Internet of Things» and machine to machine.

Keywords:multi-frequency UWB systems, the influence of interference, narrow-band systems, WiFi systems, the deficit of the RF system, the joint use of the RF system.

References

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Information about authors:
Alexey A. Frolov, Senior Lecturer of the Department of RTS, Moscow Technical University of Communications and Informatics, Moscow, Russia