TY - JOUR
T1 - On distributed antenna systems with limited feedback precoding
T2 - Opportunities and challenges
AU - Chen, Xiaoming
AU - Zhang, Zhaoyang
AU - Chen, Hsiao Hwa
N1 - Funding Information:
This work was supported by Grants from National Science Foundation of China (no. 60972057), National Hi-Tech Research and Development Program (863 Program) of China (no. 2007AA01Z257), National Key Basic Research Program (973 Program) of China (no. 2009CB320405), and the National Science Council of Taiwan (NSC 98-2219-E-006-011).
PY - 2010/4
Y1 - 2010/4
N2 - The distributed antenna system is a promising technique to enhance system performance in next-generation broadband wireless mobile communications. The application of linear precoding with space time codeword based on channel state information can further enhance the link quality and reduce the receiver complexity in DASs. However, designing the optimal codebook for DAS to convey the precoding information remains an open issue. This article provides a tutorial addressing various issues of DASs with limited feedback, focusing on the challenges in its codebook design. A suboptimal codebook design is then proposed, suitable for DAS. Furthermore, an effective feedback reduction strategy without performance loss is presented by exploiting the channel correlation property. Numerical results are given to demonstrate the effectiveness of the proposed scheme.
AB - The distributed antenna system is a promising technique to enhance system performance in next-generation broadband wireless mobile communications. The application of linear precoding with space time codeword based on channel state information can further enhance the link quality and reduce the receiver complexity in DASs. However, designing the optimal codebook for DAS to convey the precoding information remains an open issue. This article provides a tutorial addressing various issues of DASs with limited feedback, focusing on the challenges in its codebook design. A suboptimal codebook design is then proposed, suitable for DAS. Furthermore, an effective feedback reduction strategy without performance loss is presented by exploiting the channel correlation property. Numerical results are given to demonstrate the effectiveness of the proposed scheme.
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U2 - 10.1109/MWC.2010.5450664
DO - 10.1109/MWC.2010.5450664
M3 - Article
AN - SCOPUS:77951525553
SN - 1536-1284
VL - 17
SP - 80
EP - 88
JO - IEEE Wireless Communications
JF - IEEE Wireless Communications
IS - 2
M1 - 5450664
ER -