Sistem Pemetaan Sinyal Tiga Dimensi Wi-Fi Berbasis Android

Elviawan Riyani Septima Hardiyanto (Magister Informatika, Fakultas Komunikasi dan Informatika, Universitas Muhammadiyah Surakarta)
Jihan Aulia Sashiomarda (Universitas Muhammadiyah Surakarta, Surakarta, Indonesia)
Andia Enggar Mayasari (Universitas Muhammadiyah Surakarta, Surakarta, Indonesia)
Ianatush Sholihah (Universitas Muhammadiyah Surakarta, Surakarta, Indonesia)
Yusuf Sulistyo Nugroho (Universitas Muhammadiyah Surakarta, Surakarta, Indonesia)

JASIEK (Jurnal Aplikasi Sains, Informasi, Elektronika dan Komputer)
Vol. 7 No. 2 (2025): Desember 2025

The demand for stable Wi-Fi access continues to rise, but changes in room layouts often lead to degraded signal quality, necessitating efficient detection solutions. This research aims to develop an Android-based application for three-dimensional (3D) Wi-Fi signal mapping, leveraging smartphones as affordable devices to identify problematic areas. The software development employed the Agile methodology, with key features including 3D grid clustering, color-based visualization according to signal strength (-30 dBm to -100 dBm), and multi-SSID support. Evaluation was conducted in two stages: functional testing using the Black Box Testing method, and usability testing using the System Usability Scale (SUS) instrument. Evaluation results showed a usability score of 77.22 (categorized as "Good"), with 44.4% of users willing to recommend the application. This application proved effective for rapid mapping in various environments, particularly in multi-story buildings and for incidental events, offering advantages such as low cost, an intuitive interface, and comprehensive spatial visualization.