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Efficient Implementation of the MIMO Sphere Detector: Architecture and Complexity Analysis

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3 Author(s)
Chang, R.Y. ; Res. Center for Inf. Technol. Innovation, Acad. Sinica, Taipei, Taiwan ; Sian-Jheng Lin ; Wei-Ho Chung

An efficient implementation strategy for the multiple-input-multiple-output (MIMO) sphere detector (SD) is proposed and analyzed in this paper. The proposed method incorporates a dynamic information storage-and-retrieval mechanism to avoid repetitive computation of previously processed results. A memory-access architecture is devised to facilitate the implementation. The proposed method remarkably benefits the depth-first SD and its variants, as verified by a detailed complexity analysis and experimental results.

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Vehicular Technology, IEEE Transactions on  (Volume:61 ,  Issue: 7 )