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The widespread use of wireless technologies leads to an ever-increasingnumber of users and permanently functioning devices. However, the growth of thenumber of wireless users in a limited space and a limited frequency range leadsto an increase in their mutual influence, which ultimately affects thethroughput of wireless channels and even the performance of the system as awhole. The article presents the statistics and tendencies of the distributionof wireless networks of the IEEE 802.11 standard systems, as well as analyzesthe main problems that arise during the expansion of their use. Substantiationand choice of ways to overcome these difficulties largely depends on theobjective control of radiation parameters of access points and subscriber fundsin a particular environment. The review of the state control facilitiesprovided by the developers of the equipment is presented, and author's variantsof experimental measuring complexes are offered, allowing to control signal andinformation parameters of Wi-Fi systems. The experimental results obtained withthe use of the indicated means, obtained using the accelerating metal-platelens as an additional autonomous element for focusing the field, including forMIMO systems, the effect of the accelerating metal-plate lens on the spatialdistribution of the field, on the spectral structure of the signal arepresented. In addition, polarization effects were investigated. Possible waysto further increase the availability, integrity of information and energyefficiency of wireless access systems are discussed. The authors proposesimpler and less costly options for increasing the direction of radiation onthe basis of an accelerating metal-plate lens, experimentally tested, as wellas the use of zone zoning on the path of the computer.

Results and Tools for Evaluating the Effectiveness of Focusing Systems to Improve Accessibility in Wireless Networks