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reinforcement learning
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maximum likelihood method
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Hyunkee Min, Jihyung Kim, Sungeun Lee, Kyungchul Kwak, Keukjoon Bang and Daesik Hong, "A New Timing Offset Estimation Algorithm Using Phase Difference between Adjacent Subcarriers in Interleaved OFDMA Uplink Systems", WCNC 2007, Mar. 2007
[IEEE WCNC]
조회 81720
Status : | Presented |
---|---|
Date : | 2007-03 |
Title : | A New Timing Offset Estimation Algorithm Using Phase Difference between Adjacent Subcarriers in Interleaved OFDMA Uplink Systems |
Authors : | Hyunkee Min, Jihyung Kim, Sungeun Lee, Kyungchul Kwak, Keukjoon Bang and Daesik Hong |
Conference : | IEEE Conference Wireless Communications and Networking |
Abstract : | A new timing estimator using phase difference between adjacent subcarriers is proposed for interleaved orthogonal frequency-division multiple access (OFDMA) uplink systems. The phase difference of adjacent subcarriers is represented as the summation of the information of timing offset which we want to estimate and the phase difference of channel frequency responses which can cause performance degradation. Thus, a method to reduce the phase difference of channel frequency responses is applied in time domain, and then timing offset information is estimated from phase difference in frequency domain. Simulation results confirm that the proposed estimator can decrease the mean square error (MSE) compared with channel impulse response (CIR) based method when the information of channel length is unknown. |
URL : | http://ieeexplore.ieee.org/xpl/articleDe...nk+Systems |
Download : | http://mirinae.yonsei.ac.kr/?module=file...8b1baefe37 |
Hyunkee Min; Jihyung Kim; Sungeun Lee; Kyungchul Kwak; Keuk-Joon Bang; Daesik Hong; , "A New Timing Offset Estimation Algorithm Using Phase Difference Between Adjacent Subcarriers in Interleaved OFDMA Uplink Systems," Wireless Communications and Networking Conference, 2007.WCNC 2007. IEEE , vol., no., pp.2431-2435, 11-15 March 2007
doi: 10.1109/WCNC.2007.453
URL: http://ieeexplore.ieee.org/stamp/stamp.jsp?tp=&arnumber=4224698&isnumber=4224245
doi: 10.1109/WCNC.2007.453
URL: http://ieeexplore.ieee.org/stamp/stamp.jsp?tp=&arnumber=4224698&isnumber=4224245
Related Publications
- International Journals Myounghee Park, Kyunbyoung Ko, Byungjoon Park, and Daesik Hong, "Effects of asynchronous MAI on average SEP performance of OFDMA uplink systems over frequency-selective Rayleigh fading channels," IEEE Trans. Commun., Feb 2010
- International Conference Seokjung Kim, Youngho Choi, Kyungchul Kwak, Keuk-Joon Bang and Daesik Hong, "A Robust Timing Recovery Algorithm for OFDM Systems", IEEE Globecom 2008, Dec. 2008
- International Conference Byungjoon Park, Hyunsoo Cheon, Changeon Kang and Daesik Hong, "A Simple Preamble for OFDM Timing Offset Estimation", IEEE VTC, Sep. 2002
- International Conference Byungjoon Park, Eunseok Ko, Hyunsoo Cheon, Changeon Kang and Daesik Hong, "A Blind OFDM Synchronization Algorithm Based on Cyclic Correlation", IEEE GLOBECOM, Nov. 2001
- International Conference Taekwan Kim, Namshin Cho, Jaehee Cho, Keukjoon Bang, Kwangchul Kim, Hynchoil Park and Daesik Hong, "A Fast Burst Synchronization for OFDM Based wireless asynchronous transfer mode systems", IEEE GLOBECOM, Dec. 1999
- International Journals Junghoon Lee, Sungeun Lee, Keukjoon Bang, Sungkeun Cha and Daesik Hong, "Carrier Frequency Offset Estimation Using ESPRIT for Interleaved OFDMA Uplink Systems", IEEE Trans. Veh. Technol., Sep 2007
- International Journals Jeongho Park, Jihyung Kim, Myonghee Park, Kyunbyoung Ko, Changeon Kang and Daesik Hong, "Performance analysis of channel estimation for OFDM systems with residual timing offset", IEEE Trans. WComm., Jul 2006
- International Journals Byungjoon Park, Hyunsoo Cheon, Eunseok Ko, Changeon Kang and Daesik Hong, "A blind OFDM synchronization algorithm based on cyclic correlation", IEEE SP Letters, Feb 2004
- International Journals Byungjoon Park, Hyunsoo Cheon, Changeon Kang and Daesik Hong, "A novel timing estimation method for OFDM systems", IEEE Comm. Letters, May 2003
- International Journals Keukjoon Bang, Namshin Cho, Jaehee Cho, Heeyoung Jun, Kwangchul Kim, Hyuncheol Park and Daesik Hong, "A Coarse Frequency Offset Estimation in an OFDM System Using the Concept of the Coherence Phase Bandwidth", IEEE Trans. Comm., Aug 2001
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