Cellular Structuring and Clustering for Distributed Antenna Systems

Denser deployment of base stations (BSs) and higher frequency bands are inevitable in 5G-advanced systems with ever growing mobile data traffic. Due to the rectilinear propagation nature of high frequency radio signals and the limited signal processing power, cellular structured distributed antenna system with clustered multi-user multi-input multi-output (MU-MIMO) is considered attractive. Cellular structure and cluster structure (in each cell) greatly affect the system performance. We propose modified K-means based cellular structuring and clustering. The modified K-means based cellular structuring is compared by computer simulation with original K-means based one and the simple square division in terms of user capacity, fairness of user capacity and computational complexity of MU-MIMO processing.