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최소 단어 이상 선택하여야 합니다.
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선택한 단어 수는 30입니다.
최대 10 단어까지만 선택 가능합니다.
최대 10 단어까지만 선택 가능합니다.
제안 방법
- In this paper, we propose a user selection algorithm based on the SINR of the receiving user terminal, which is approximated at the transmit BS using the SINR shown in (4).
- In this paper, we proposed a novel user selection method based on the SINR approximation through limited feedback in MU-MIMO systems. The SINR approximation is obtained from a linear combination of the vectors that are orthonormal to the precoding vectors of the previously selected users.
- The proposed method modifies the procedure of SINR approximation on the basis of the features mentioned above, while it still makes use of (5) for selecting the first user. The proposed method can be summarized as follows.
- Furthermore, the quantization error cannot be considered in the SINR approximation after selecting the first user. The proposed method resolves the problems of all of the conventional techniques to enhance the sum rate performance of the MU-MIMO system.
이론/모형
- In addition, uniform transmit power is assigned to all of the transmit data streams. Due to the fact that the interference among users cannot be completely removed in the limited feedback signal environment, the SINR-based methods, that is, the proposed method and the methods in [6] and [7], outperform the well-known SUS method. Furthermore, the proposed method and the method in [7], which computes the SINR with the quantization error feedback from the user terminal, are better than the successive scheduling [6], which is based on the SLNR.
- Obtain Q(m) from Q(m-1) by generating #, …,# that are orthonormal to tπ(1), …, tπ(m-1) using the Gram-Schmidt procedure.
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