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All Journal International Journal of Informatics, Information System and Computer Engineering (INJIISCOM)
Muhammed Abudu Aniru
Department of Electrical/Electronic Engineering, University of Benin, Benin City, Nigeria
Computer Science & IT Electrical & Electronics Engineering Engineering Industrial & Manufacturing Engineering Mechanical Engineering

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Testing and Analysis of PIM Performance in a Passive DAS Network - Experimental Approach Muhammed Abudu Aniru; Emagbetere Joy Omoavowere
International Journal of Informatics, Information System and Computer Engineering (INJIISCOM) Vol. 6 No. 1 (2025): INJIISCOM: VOLUME 6, ISSUE 1, JUNE 2025
Publisher : Universitas Komputer Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.34010/injiiscom.v6i1.12700

Abstract

This study investigates Passive Intermodulation (PIM) levels within a passive distributed antenna system (DAS) for cellular networks across a multi-floor building. PIM significantly degrades network performance if unaddressed during deployment. Using an experimental approach, on-site testing was conducted on a multicarrier system (700–2600MHz) using Kaelus PIM analyzers. Tests strictly followed industry standards with high RF power configurations. Test points included vertical and horizontal cabling against a -150dBc baseline. Analysis focused on time-domain PIM traces and the impact of altering two-tone signal frequencies on the IM3 component. The findings emphasize selecting frequencies away from band edges to avoid interference. Resolution measures based on pass/fail outcomes effectively mitigated PIM, ensuring optimal signal integrity and network reliability
Co-Authors Emagbetere Joy Omoavowere