METHOD FOR DESIGNING TWO-WAY RELAY BROADCASTING COMMUNICATION SYSTEM

摘要

Disclosed is a method for designing a two-way relay broadcasting communication system. The disclosed method is a method for designing a transmitter precoder and a relay receiving filter at a mode in which a transmitter and a plurality of receivers transmit a signal to a relay in a broadcast system to relay a signal by a two-way relay. The method includes: (a) randomly setting a receiver precoder; (b) setting virtual signal-to-noise ratios (SINRs) of links between a relay and receivers; (c) determining a power loading part of the receiver precoder so that all of the virtual SINRs have an equal value; (d) determining a transmitter precoder based on the power loading part of the transmitter precoder; and (e) determining a relay receiving filter based on the transmitter precoder. According to the disclosed method, a minimum transmission rate may be maximized with the two-way relay, so that designing a satisfactory broadcast system is possible.