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IEICE TRANSACTIONS on Information

A Reduced MIMO Detector Using Post SNR Ordering

Hye-Yeon JEONG, Hyoung-Kyu SONG

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Summary :

In this letter, a novel adaptive detector that combines DFE and QRD-M is proposed for MIMO-OFDM system. QR decomposition (QRD) is commonly used in many MIMO detection algorithms. In particular, sorted QR decomposition (SQRD) is an advanced algorithm that improves MIMO detection performance. The proposed detector uses SQRD to achieve better performance. To reduce the computational complexity, the received layers of each subcarrier are ordered by using the post SNR and are detected by DFE and QRD-M detector based on the order. Therefore, the proposed detector structure is varied according to the channel state. In other words, the proposed detector achieves a good tradeoff between complexity and performance. A simulation confirms the substantial performance improvements of the proposed adaptive detector with only slightly greater complexity than the conventional detector.

Publication
IEICE TRANSACTIONS on Information Vol.E96-D No.6 pp.1398-1401
Publication Date
2013/06/01
Publicized
Online ISSN
1745-1361
DOI
10.1587/transinf.E96.D.1398
Type of Manuscript
LETTER
Category
Information Network

Authors

Hye-Yeon JEONG
  Sejong University
Hyoung-Kyu SONG
  Sejong University

Keyword