Passive Mobile Cellular Network Infrastructure Sharing: An Analysis of Wind Loading on a Multi-Operator Telecommunication Tower

Abstract

In order to overcome challenges militating against the rapid deployment of mobile cellular infrastructure, it is technically and economically crucial for a number operators to share mobile cellular infrastructure such as power supply, base station (BTS) cabin and telecommunication tower. For an efficient tower sharing, an analysis of tower’s wind loading and the tower bending moment have to be performed. In this work, we performed wind loading analyses for a multi-operator mobile cellular network. It was verified that as the number of operators increase, the wind loading value also increases. This work further observed that as the value of the antenna tilt increases, the tower wind loading proportionately increases. However, as the wind direction deviates from the normal, the wind loading reduces slightly. Finally, for six mobile cellular network operators, with total tower height set at 55m, the bending moment at a rare wind speed of up to 67 m/s was evaluated to be. It is vital that the bending moment of the telecommunication tower be lesser than the manufacturer’s specified tower bending moment limit. The results obtained from this research can be used to tighten tower survivability criterion. It will also serve as a useful tool to mobile cellular equipment designers and installers.

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Keywords

GSM, wind loading, telecommunication tower, multi-operator base station, bending moment, infrastructure sharing, collocation

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