Presentation 2014-10-16
Tomlinson-Harashima Precoding with Cholesky Decomposition for Multi-user MIMO
Tatsuya ITAKURA, Satoshi DENNO,
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Abstract(in English) Multi-user Multiple Input Multiple Output (MIMO) is regarded as one of key techniques to increase system throughput in cellular systems and wireless local area networks. This report proposes a new multi-user MIMO system. It is a downlink multi-user MIMO system in which receivers have a number of antennas. In the proposed systems, cholesky decomposition is introduced to apply Tomlinson-Harashima Precoding (THP) based on MMSE. We show two actual configurations of the proposed multi-user MIMO systems. One is a multi-user MIMO system to multiply a unitary matrix by received signal. The other is that to detect a desired signal with successive interference cancellation (SIC). We evaluated the BER performance and the frequency utilization efficiency of proposed systems by computer simulation.
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Keyword(in English) Multi-user MIMO / Tomlinson-Harashima Precoding / MMSE / cholesky decomposition
Paper # RCS2014-157
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Committee RCS
Conference Date 2014/10/9(1days)
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Registration To Radio Communication Systems (RCS)
Language JPN
Title (in Japanese) (See Japanese page)
Sub Title (in Japanese) (See Japanese page)
Title (in English) Tomlinson-Harashima Precoding with Cholesky Decomposition for Multi-user MIMO
Sub Title (in English)
Keyword(1) Multi-user MIMO
Keyword(2) Tomlinson-Harashima Precoding
Keyword(3) MMSE
Keyword(4) cholesky decomposition
1st Author's Name Tatsuya ITAKURA
1st Author's Affiliation Graduate School of Natural Science and Technology, Okayama University()
2nd Author's Name Satoshi DENNO
2nd Author's Affiliation Graduate School of Natural Science and Technology, Okayama University
Date 2014-10-16
Paper # RCS2014-157
Volume (vol) vol.114
Number (no) 254
Page pp.pp.-
#Pages 5
Date of Issue