Cell Range Extension Adaptation in Coordinated LTE-A Network

Deployment of small cells in heterogeneous network is directly related to the problem of right user association between macro- and small-cell base station. In order to force just selection of appropriate base station, additional component is added to the measured path loss (signal strength) in order to modify, i.e. virtually extend or squeeze, the cell radius. In this short paper, the authors present the concept of using the Cell Range Extension parameter in coordinated LTE-A networks. Within the coordination area that covers numerous base stations, the values of CRE are tuned in such a way that the achieved network throughout is improved. It is to improve network throughput by proper user assignment to the BS.