COMMUNICATION SYSTEM USING INTERFERENCE ALIGNMENT IN MULTI-CELL ENVIRONMENT

摘要

The present invention relates to the selection of a terminal, which transmits data using an interference alignment scheme, from among a plurality of terminals. A base station transmits a null-space matrix to a terminal, and the terminal generates interference amount information which the terminal transmits to other cells using the null-space matrix. The base station selects a data transmitting terminal on the basis of the interference amount information of each terminal, and receives data from the selected data transmitting terminal using the interference alignment scheme. According to the present invention, inter-cell interference can be reduced.