Precoder distribution and adaptive codebook in wideband precoding
Article
Article Title | Precoder distribution and adaptive codebook in wideband precoding |
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ERA Journal ID | 4412 |
Article Category | Article |
Authors | Long, Hang (Author), Kim, Kyeong Jin (Author), Xiang, Wei (Author), Wang, Jing (Author), Liu, Yuanan (Author) and Wang, Wenbo (Author) |
Journal Title | ETRI Journal |
Journal Citation | 34 (5), pp. 655-665 |
Number of Pages | 11 |
Year | 2012 |
Place of Publication | Korea |
ISSN | 1225-6463 |
2233-7326 | |
Digital Object Identifier (DOI) | https://doi.org/10.4218/etrij.12.0112.0072 |
Web Address (URL) | https://koreascience.kr/article/JAKO201254059648733.view |
Abstract | 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. |
Keywords | MIMO; OFDM; precoding; spatial correlation; quantization |
ANZSRC Field of Research 2020 | 460609. Networking and communications |
400901. Analog electronics and interfaces | |
461301. Coding, information theory and compression | |
Public Notes | File reproduced in accordance with the copyright policy of the publisher/author. |
Byline Affiliations | Beijing University of Posts and Telecommunications, China |
Inha University, Korea | |
Department of Electrical, Electronic and Computer Engineering | |
Institution of Origin | University of Southern Queensland |
https://research.usq.edu.au/item/q18zy/precoder-distribution-and-adaptive-codebook-in-wideband-precoding
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