Single-carrier Transmission Frequency-domain Equalization Based on a Wiener Filter for Broadband Wireless Communications
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概要
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Recently, frequency-domain equalization for single-carrier transmission (SC-FDE) has been given much attention. For example, the enhanced mobile phone system, a SC-FDMA (Single-carrier frequency division multiple access) method using SC-FDE and multiple access will be adopted. However in previous research, there are many papers describing the features and advantages of SC-FDE based on a comparison of SC-FDE and orthogonal frequency-division multiplexing (OFDM) systems. In this technical note, we discuss single-carrier transmission equalization in the time-domain (SC-TDE) and SC-FDE in a unified way centered on the Wiener filter based on the minimum mean square error (MMSE) criterion. The reason to take up a Wiener Filter is that it is a basic filter based on the MMSE criterion. Also, we explain the basic principle of the SC-FDE and SC-FDMA in an organized and systematic way. Moreover, we point out the physical meaning of the Wiener solution in SC-FDE and relationship between SC-TDE and SC-FDE Wiener solutions. As a result, we show useful information and pointers, especially for when we want to replace existing SC-TDE technology with SC-FDE technology.
- 2011-07-01
著者
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Asano David
Department Of Information Engineering Shinshu University
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Yamazaki Satoshi
The Interdisciplinary Graduate School of Science and Technology, Department of Mathematics and Syste
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Yamazaki Satoshi
The Interdisciplinary Graduate School of Science and Technology, Department of Mathematics and System Development, Shinshu University
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ASANO David
Department of Computer Science and Engineering, Shinshu University
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- Single-carrier Transmission Frequency-domain Equalization Based on a Wiener Filter for Broadband Wireless Communications