A Direction-of-Arrival Estimation Based Adaptive Beamforming Algorithm for OFDMA Smart Antenna Systems 


Vol. 31,  No. 12, pp. 1214-1222, Dec.  2006


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  Abstract

In this paper, an efficient direction-of-arrival based adaptive beamforming algorithm for orthogonal frequency-division multiple-access smart antenna systems is proposed. The proposed algorithm provides a high performance by steering main beams to the directions of a desired signal, whereas steering nulls to the directions of the interference, using the estimated directions. The beamforming outputs obtained by steering the main beams to the distinct directions of resolvable multipath signals are combined in a maximal ratio manner to exploit angular diversity gain. The performance of the proposed algorithm is finally evaluated in cellular mobile environments to verify its efficiency and is compared with that of least-squares beamforming algorithm, by taking the WiBro system as a target system.

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  Cite this article

[IEEE Style]

Y. Yun, Y. Park, H. Park, "A Direction-of-Arrival Estimation Based Adaptive Beamforming Algorithm for OFDMA Smart Antenna Systems," The Journal of Korean Institute of Communications and Information Sciences, vol. 31, no. 12, pp. 1214-1222, 2006. DOI: .

[ACM Style]

Young-Ho Yun, Yoon-Ok Park, and Hyung-Rae Park. 2006. A Direction-of-Arrival Estimation Based Adaptive Beamforming Algorithm for OFDMA Smart Antenna Systems. The Journal of Korean Institute of Communications and Information Sciences, 31, 12, (2006), 1214-1222. DOI: .

[KICS Style]

Young-Ho Yun, Yoon-Ok Park, Hyung-Rae Park, "A Direction-of-Arrival Estimation Based Adaptive Beamforming Algorithm for OFDMA Smart Antenna Systems," The Journal of Korean Institute of Communications and Information Sciences, vol. 31, no. 12, pp. 1214-1222, 12. 2006.

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pISSN : 1226 - 4717
eISSN : 2287 - 3880