Technology for providing electromagnetic compatibility requirements for mobile wireless systems
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Abstract
The subject of study is the process of ensuring electromagnetic compatibility requirementsof mobile wireless communication systems. The goal is the development of ultra-wideband communication technology, which provides a reduction in the level of interference electromagnetic environment of mobile devices, occupying a random position relative to each other. The technology is based on the principle of direct transmission of low-power encoded pulses in a very wide frequency band without a carrier frequency. The task is to reduce the level of interference electromagnetic environment and compensate for distortions of the information signal caused by intersymbol interference and multipath radio wave propagation. Methods used: methods of analytical, simulation and temporary positional-pulse coding. The following results are obtained. A technology has been developed to ensure the electromagnetic compatibility requirements of mobile wireless communication systems, which includes the method of temporary position-pulse coding and the method of shimmering polarization of information signals. The minimum required number of pulses encoding an information bit is proved, which ensure its recovery. A technical solution is proposed for the design of the antenna system for signals with shimmering polarization. The possibility of joint noiseless operation in the same frequency range of both traditional communication systems and systems using ultra-wideband signals is shown. Conclusions. The use of the proposed technology of ultra-wideband signals, shimmering polarization of signals and the antenna system with the communication systems of mobile devices allows increasing the signal-to-noise ratio at the receiver input, which reduces the level of electromagnetic radiation, thus providing the electromagnetic compatibility requirements of mobile wireless communication systems. Efficiency of the developed technology application is conditioned by the possibility of realizing a high density of communication channels per square meter of the working area. By reducing the level of the information signal relative to white noise in the operating frequency range, simultaneous noise-free operation of both narrow-band traditional communication systems and communication systems using ultra-wideband signals is carried out. Implementation of the technology for ensuring the electromagnetic compatibility requirements of mobile wireless communication systems makes it possible to ensure their implementation at all stages of the development and implementation of mobile wireless communication systems.
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References
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