Abstract
The failure of the strong cover of wifi signals in building L floors 1, 2, 3, and 4 occurred due to the lack of installation of AP on each floor. The research was conducted by surveying and taking direct measurements in the coverage area (coverage area) that has been determined, namely in building L floors 1, 2, 3, and 4 at the Technical Faculty of HKBP Nommensen University Medan. Measurement data was obtained using measurement instruments, namely inSSIDer software, Acer Aspire 4736Z laptop with windows 7 ultimate SP 1 32 bit operating system. Survey data produces parameters that will be processed using RSSI calculations (Received Signal Strength Indicator). Using the RSSI calculation model (Received Signal Strength Indicator). RSSI measurements in the field are directly influenced by the conditions around them with different contours and densities.
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