Invention Grant
US07664192B2 Apparatus and method for minimizing a PAPR in an OFDM communication system
失效
用于使OFDM通信系统中的PAPR最小化的装置和方法
- Patent Title: Apparatus and method for minimizing a PAPR in an OFDM communication system
- Patent Title (中): 用于使OFDM通信系统中的PAPR最小化的装置和方法
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Application No.: US11247787Application Date: 2005-10-11
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Publication No.: US07664192B2Publication Date: 2010-02-16
- Inventor: Sung-Ryul Yun , Chan-Byoung Chae , Hong-Sil Jeong , Dong-Seek Park , Won-Il Roh , Jae-Yoel Kim , Pan-Yuh Joo , Jeong-Tae Oh , Kyun-Byoung Ko
- Applicant: Sung-Ryul Yun , Chan-Byoung Chae , Hong-Sil Jeong , Dong-Seek Park , Won-Il Roh , Jae-Yoel Kim , Pan-Yuh Joo , Jeong-Tae Oh , Kyun-Byoung Ko
- Applicant Address: KR
- Assignee: Samsung Electronics Co., Ltd
- Current Assignee: Samsung Electronics Co., Ltd
- Current Assignee Address: KR
- Agency: The Farrell Law Firm, LLP
- Priority: KR10-2004-0080905 20041011
- Main IPC: H04B7/02
- IPC: H04B7/02
Abstract:
A transmitter for minimizing a PAPR in OFDM communication system. The transmitter includes: a precoder for coding input symbols so that a signal rotation is generated, and generating a complex vector including the coded symbols; an encoder for performing a frequency-space mapping for the symbols generated as the complex vector according to a predetermined scheme; a random mapper for randomly mapping the symbols for which the frequency-space mapping has been performed on a frequency plane through at least one transmit antenna; an Inverse Fast Fourier Transform (IFFT) unit for performing an IFFT for the symbols for which the frequency-space mapping has been performed; and a gradient algorithm unit for receiving IFFTed signals from the IFFT unit and reducing the PAPR.
Public/Granted literature
- US20060078066A1 Apparatus and method for minimizing a PAPR in an OFDM communication system Public/Granted day:2006-04-13
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