Invention Grant
- Patent Title: Orthogonal frequency-division multiplexing system capable of optimizing channel estimation and method for optimizing channel estimation for orthogonal frequency-division multiplexing system
- Patent Title (中): 能够优化信道估计的正交频分复用系统和用于正交频分复用系统优化信道估计的方法
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Application No.: US13545760Application Date: 2012-07-10
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Publication No.: US08699374B2Publication Date: 2014-04-15
- Inventor: Chih-Peng Li , Wei-Chieh Huang , Chin-Liang Wang
- Applicant: Chih-Peng Li , Wei-Chieh Huang , Chin-Liang Wang
- Applicant Address: TW Hsinchu
- Assignee: National Tsing Hua University
- Current Assignee: National Tsing Hua University
- Current Assignee Address: TW Hsinchu
- Agency: Muncy, Geissler, Olds & Lowe, P.C.
- Priority: TW101108904A 20120315
- Main IPC: H04L12/28
- IPC: H04L12/28
Abstract:
The present invention discloses a channel estimation method for an orthogonal frequency-division multiplexing system with cyclic-delay diversity. The method makes pilots have the same amplitude and equally partitions the pilots into a number of pilot groups. In addition, the method equally spaces the pilots of each group in a frequency domain and determines the pilot locations and cyclic-delay coefficient of each pilot group in order to optimize the channel estimation of a receiver. The method can perform the channel estimation by using just one OFDM symbol.
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