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COOPERATIVE RECEPTION DIVERSITY APPARATUS AND METHOD BASED ON SIGNAL POINT REARRANGEMENT OR SUPERPOSITION MODULATION IN RELAY SYSTEM
COOPERATIVE RECEPTION DIVERSITY APPARATUS AND METHOD BASED ON SIGNAL POINT REARRANGEMENT OR SUPERPOSITION MODULATION IN RELAY SYSTEM
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机译:继电器系统中基于信号点重排或叠加调制的协同接收多样性装置及方法
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摘要
Disclosed is an apparatus and method for cooperative reception diversity based on signal point rearrangement or superposition modulation in a relay system, the method includes receiving a superposition-modulated symbol from a transmitting unit, demodulating the received symbol and decoding the demodulated symbol, modulating the received symbol using superposition modulation different from the superposition modulation used in the transmitting unit, and then relaying the modulated symbol to a reception unit, calculating an LLR of the symbol when a certain superposition-modulated symbol is received from a transmitting unit, calculating an LLR of a symbol modulated using superposition modulation different from the superposition modulation used in the transmitting unit when the symbol modulated using the different superposition modulation is received from a relay station, and summing and combining an LLR of each symbol received through the transmitting unit and relay station.
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