ABSTRACT This paper presents numerical simulation results to study the impact of the co-existence between a fixed service (FS) system and 5G small cell networks at 28-, 38-, and 60-GHz millimeterwave (mmWave) frequency bands. For this paper, two scenarios are considered: aggregation of interference from small cells into an FS receiver from base stations (BSs) to their associated user equipment (UE) (downlink) and the aggregation of cellular interference at the FS receiver from UEs to their associated BSs (downlink). Moreover, mmWave-specific propagation characteristics and attenuation factors are considered for a more precise simulation study. The simulation results determine how much interference rejection is required to protect the operation of FS. In addition, currently available mmWave modular antenna array (MAA) architectures are introduced. Based on the information, additional mmWave frequency sharing study is performed using the realistic MAA radiation patterns. Last, we compare and analyze the performance differences between ITU standard models and MAA solutions. INDEX TERMS Millimeter-wave, frequency sharing study, 28 GHz, 38 GHz, 60 GHz, 5G, modular antenna array.
Using the Monte Carlo (MC) simulation, Kim et al. REF computed the amount of interference rejection that is required to protect a fixed service system from 5G small cell networks at millimeter wave frequency bands, where at least 8.6 km, 5.5 km, and 1 km separation are respectively required for 28 GHz, 38 GHz, and 60 GHz 5G systems.
Numerical Simulation Study for Frequency Sharing Between Micro-Cellular Systems and Fixed Service Systems in Millimeter-Wave Bands
IEEE Access
IEEE Access
Computer Science