Evaluation of adjacent channel interference from land-earth station in motion to 5G radio access network in the Ka-frequency band
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2021
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Heliyon
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2405-8440 (Print) 2405-8440
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As the fifth-generation (5G) mobile communication service is expected to operate in one of the 11 candidate frequency bands of 24.25-27.5 GHz, compatibility and coexistence with other adjacent wireless applications must be evaluated. In this paper, the adjacent channel interference (ACI) between Land-Earth Station in Motion (L-ESIM), 5G base station (BS), and user equipment (UE) operating in the adjacent frequency bands is assessed. The minimum coupling loss (MCL) method is used by considering the worst-case scenario to evaluate the effect of geostationary orbit-fixed satellite service's (GSO-FSS) frequency band of 27.5-29.5 GHz on the 5G radio access network (BS and UE) from L-ESIM. From the numerical simulations, minimum separation distances of 35 km and 12 km were recorded for the BS and UE to meet the maximum acceptable interference of -147 dBW/MHz. The obtained results will protect the 5G RAN from harmful interference by ensuring adjacent channel compatibility and coexistence with L-ESIM in their future deployment.
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5G RADIO ACCESS NETWORK, ADJACENT CHANNEL, INTERFERENCE COMPATIBILITY, LAND-MOBILE EARTH STATION IN MOTION, MINIMUM COUPLING LOSS