DATA TRANSMISSION SYSTEM FOR FORWARDING DATA USING A PLURALITY OF ANTENNAS

摘要

PURPOSE: A data transmission system capable of forwarding data using a plurality of antennas is provided to enhance the data transmission efficiency by eliminating the Interference between signals which are transmitted by antennas. CONSTITUTION: A channel estimator(520) presumes the wireless channel condition to a receiving antenna of relay from a transmission antennas of base station, and generates the channel state matrix based on the presumed radio channel. A transmitting terminal selecting unit(540) selects at least one transmitting terminal among the terminals connected to relay based on the channel condition matrices. A receiver(510) generates a receiving vector including a terminal data and a base station data. A decoder(550) decodes the sum of base station data and terminal data based on the channel condition matrices.