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A New Detection Scheme for MIMO-BLAST Systems

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1 Author(s)
Wang Zhongpeng ; Sch. of Inf. Technol. & Electron. Eng., Zhejiang Univ. of Sci. & Technol., Hangzhou

The VBLAST architecture has been proposed as an extremely spectral efficient tool for wireless communications. However, owing to the error propagation, the performance of VBLAST is constrained by the accuracy of the symbols recovered in the previous layer when the traditional detection successive interference cancellation (SIC) algorithm is applied. The performance of VBLAST depends on the performance of the first detected layer. So we proposed a new scheme that the first layer is detected with iterative method and others layers is detected using parallel interference cancellation (PIC) detection. . The proposed algorithm reduces the error propagation, and the performance of the first detected layer is improved. Simulation result states that proposed scheme outperform to MMSE-VBLAST about 1.6 dB at 10-3 BER for first detected layer

Published in:

2006 International Conference on Wireless Communications, Networking and Mobile Computing

Date of Conference:

22-24 Sept. 2006