Precoder distribution and adaptive codebook in wideband precoding

Long, Hang and Kim, Kyeong Jin and Xiang, Wei and Wang, Jing and Liu, Yuanan and Wang, Wenbo (2012) Precoder distribution and adaptive codebook in wideband precoding. ETRI Journal, 34 (5). pp. 655-665. ISSN 1225-6463

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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.

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Item Type: Article (Commonwealth Reporting Category C)
Refereed: Yes
Item Status: Live Archive
Additional Information: Open Access journal. Copyright of ETRI Journal is the property of Electronics & Telecommunications Research Institute and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use.
Faculty/School / Institute/Centre: Historic - Faculty of Engineering and Surveying - Department of Electrical, Electronic and Computer Engineering
Date Deposited: 24 Jan 2013 07:05
Last Modified: 18 Aug 2014 06:06
Uncontrolled Keywords: MIMO; OFDM; precoding; spatial correlation; quantization
Fields of Research : 08 Information and Computing Sciences > 0805 Distributed Computing > 080503 Networking and Communications
10 Technology > 1006 Computer Hardware > 100602 Input, Output and Data Devices
08 Information and Computing Sciences > 0804 Data Format > 080401 Coding and Information Theory
Socio-Economic Objective: E Expanding Knowledge > 97 Expanding Knowledge > 970108 Expanding Knowledge in the Information and Computing Sciences
Identification Number or DOI: 10.4218/etrij.12.0112.0072

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