Blind multiuser detector based on orthogonal projection [for CDMA] |
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Authors: | Qingyang Wang Gang Wei |
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Affiliation: | Dept. of Electron. Eng., South China Univ. of Technol., Guangzhou; |
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Abstract: | A new stable blind multiuser detector based on signal subspace orthogonal projection is presented. By carrying out a pseudoeigendecomposition (PED) analysis, a technique proposed for the first time, the signal of the interested user can be approximated by the orthogonal projection of a received multiuser signal onto the related subspace of the interested user. Simulations show that compared with the previous subspace-based MMSE blind multiuser detector, the new detector offers better performance without leading to an increase in the computational complexity |
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