COMPENSATIVE METHODS OF HINDRANCES PROTECTING IN WIRELESS LOCAL NETWORK
Journal Title: Телекомунікаційні та інформаційні технології - Year 2017, Vol 117, Issue 4
Abstract
To solve the problem of protecting the wireless network from interference, the sources of which are separated with the source of the useful signal, the method of amplitude compensation is developed. The levels of the useful signal are calculated taking into account the noise in the channels and the degree of compensation of interferences, depending on the magnitude of the angular diversity of the sources. With the unchanging spatial orientation of the antenna pattern, this dependence is considered for two cases. In the first case, the degree of compensation of interference is analysed at the unchanged position of its source and the displacement of the source of the useful signal. In the second case, the analysis of the degree of compensation of the interference in the direction of change (azimuth and angle of the place) of the arrival of the interference is conducted, when the reception of a useful signal is made at the maximum of the antenna direction diagram on the main channel. In the second case, the compensation is achieved by adjusting the transmission rates of the channels. At the same time, at low angular diversity of sources, the level of the useful signal is reduced in comparison with its nominal value. The results of the work can be used to select the most effective compensation regime.
Authors and Affiliations
Ivan Shvets
Keywords
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