MIMO SYSTEM, RECEIVING APPARATUS AND METHOD FOR RECEIVING SIGNAL

摘要

PURPOSE: A MIMO system, receiving apparatus, and signal receiving method are provided to increase signal transmission ratio and link level performance and to reduce the complexity of a receiver. CONSTITUTION: A QR decomposition unit(300) converts a receiving signal into a receiving vector. The QR decomposition unit decomposes the channel matrix vector of the received vector to a single matrix vectors and an upper triangular matrix vector. A first estimation unit(302) estimates a symbol through the decomposed vectors. The first estimation unit calculates an LLR(Log Likelihood Ratio). A second estimation unit(304) estimates the symbol in a DFE(Determination Feedback Equalizer) method.