S-Space College of Engineering/Engineering Practice School (공과대학/대학원) Dept. of Electrical and Computer Engineering (전기·정보공학부) Others_전기·정보공학부
Transmit Beamforming with Reduced Channel Information in OFDM Based Wireless Systems
- Yang, Seung-Hyeon; Ko, Jae-Yun; Lee, Yong-Hwan
- Issue Date
- 제20회 신호처리합동학술대회논문집, 2007년 10월
- In this paper, we consider transmit beamforming that works with reduced channel state information in OFDM based multiple-input single-output (MISO) wireless systems. The proposed scheme significantly reduces the amount of feedback signaling burden by generating beamforming weights using information on the previous beamforming weights and channel correlation. The feedback signaling overhead is further reduced with the use of clustering and interpolation techniques. Simulation results show that the proposed scheme outperforms conventional beamforming techniques, while using the same amount of feedback signaling overhead.
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