Precoder distribution and adaptive codebook in wideband precoding

Long, Hang, Kim, Kyeong Jin, Xiang, Wei, Wang, Jing, Liu, Yuanan, and Wang, Wenbo (2012) Precoder distribution and adaptive codebook in wideband precoding. ETRI Journal, 34 (5). pp. 655-665.

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Based on wideband precoding (WBP) in the multiple-input multiple-output orthogonal frequency division multiplexing system, an adaptive nonuniform codebook is presented in this paper. The relationship between the precoder distribution and spatial correlation is analyzed at first. A closed-form expression based on overlapped isosceles triangles is proposed as an approximation of the precoder distribution. Then, the adaptive codebook design is derived with the approximate distribution to minimize quantization errors. The capacity and bit error rate performance demonstrate that the adaptive codebook with WBP outperforms the conventional fixed uniform codebook.

Item ID: 43325
Item Type: Article (Research - C1)
ISSN: 2233-7326
Keywords: MIMO, OFDM, precoding, spatial correlation, quantization
Date Deposited: 24 Feb 2016 07:47
FoR Codes: 09 ENGINEERING > 0906 Electrical and Electronic Engineering > 090699 Electrical and Electronic Engineering not elsewhere classified @ 100%
SEO Codes: 89 INFORMATION AND COMMUNICATION SERVICES > 8901 Communication Networks and Services > 890199 Communication Networks and Services not elsewhere classified @ 100%
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