| 한글제목(Korean Title) |
A Frequency-Domain Selection Combining Technique for an OFDM System |
| 영문제목(English Title) |
A Frequency-Domain Selection Combining Technique for an OFDM System |
| 저자(Author) |
Won Gi Jeon
Hyeok Koo Jung
Yong Soo Cho
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| 원문수록처(Citation) |
VOL 13 NO. 01 PP. 2C ~ 0001 (2003. 04) |
한글내용
(Korean Abstract) |
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영문내용
(English Abstract) |
In this paper, a simple subcarrier selection combining technique is proposed for orthogonal frequency-division multiplex-ing (OFDM) systems with multiple receive antennas. The subcarrier-based selection algorithm is developed in the fre-quency domain to achieve an optimal selection combining gain for OFDM systems, instead of the antenna-based selec-tion algorithms in the time domain or frequency domain. The proposed technique selects an optimal subcarrier with a maximum channel gain among all the receive antennas with the same subcarrier position, based on the estimated channel frequency response during the training period. Hardware complexity for the proposed technique is minimal since it re-quires single front-end with multiple receive antennas and single baseband demodulator. It is shown by computer simula-tion that a significant gain can be achieved by the proposed technique over the conventional selection combining tech-nique for OFDM systems in practical situations.
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