发明名称 |
APPARATUS AND METHOD OF TRANSMITTING AND RECEIVING DATA FOR IMPROVING TRANSMISSION RATE |
摘要 |
A data transmitter and receiver for improving a data rate, and more particularly, to an apparatus and method of transmitting and receiving an orthogonal frequency division multiplexing (OFDM) symbol in which a pilot signal is added to a data signal is provided. The apparatus includes a transmitter including: a pilot adder to add a pilot signal to a data signal; and a guard interval inserting unit to insert a guard interval to the data signal with the added pilot signal, and a receiver including: a guard interval removal unit to remove a guard interval in a received time domain signal; a fast Fourier transform (FFT) unit to transform the time domain signal in which the guard interval is removed to a frequency domain signal; a channel estimator to estimate a channel value from the time domain signal in which the guard interval is removed; an equalizer to equalize the frequency domain signal based on the estimated channel value; and a pilot signal removal unit to remove the pilot signal in the equalized frequency domain signal. |
申请公布号 |
US2011167321(A1) |
申请公布日期 |
2011.07.07 |
申请号 |
US20080809392 |
申请日期 |
2008.02.29 |
申请人 |
ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTITUTE;SUNGKYUNKWAN UNIVERSITY FOUNDATION FOR CORPORATE COLLABORATION |
发明人 |
HWANG SUNG-HYUN;UM JUNG SUN;SONG MYUNG SUN;KIM CHANG-JOO;IM SE-BIN;YOON TAE-WOONG;CHOI HYUNG-JIN |
分类号 |
H04L27/28;G06F11/10;H03M13/23;H04B17/00 |
主分类号 |
H04L27/28 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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