Invention Grant
US08130851B2 Bandwidth efficient coding for an orthogonal frequency multiplexing OFDM system
有权
正交频分复用OFDM系统的带宽高效编码
- Patent Title: Bandwidth efficient coding for an orthogonal frequency multiplexing OFDM system
- Patent Title (中): 正交频分复用OFDM系统的带宽高效编码
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Application No.: US12236840Application Date: 2008-09-24
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Publication No.: US08130851B2Publication Date: 2012-03-06
- Inventor: Chuanhui Ma , Ting Wang
- Applicant: Chuanhui Ma , Ting Wang
- Applicant Address: US NJ Princeton
- Assignee: NEC Laboratories America, Inc.
- Current Assignee: NEC Laboratories America, Inc.
- Current Assignee Address: US NJ Princeton
- Agent Joseph Kolodka
- Main IPC: H04B15/00
- IPC: H04B15/00 ; H04K1/02 ; H04L25/03 ; H04L25/49
Abstract:
A method for encoding an OFDM signal includes pairing two adjacent subcarriers of an OFDM signal as a group, changing a modulated symbol set of the OFDM signal to a modified symbol set for coding the OFDM signal, and providing a modified baseband OFDM signal with an increased frequency separation between the subcarriers and reducing the total number of subcarriers being used for transmission over each OFDM symbol interval.
Public/Granted literature
- US20090080551A1 Bandwidth Efficient Coding for an Orthogonal Frequency Multiplexing OFDM System Public/Granted day:2009-03-26
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