Performance analysis of Wireless Internet system employing joint adaptive array antennas 


Vol. 32,  No. 5, pp. 433-440, May  2007


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  Abstract

In this paper, we have proposed WiBro receiver structure employing joint adaptive antenna scheme at the base station (BS) and the mobile station (MS) and evaluated its performance. In WiBro system, the joint use of transmit beamforming at BS and receive beamforming at MS can improve the SINR significantly and increase the capacity compared to the conventional system. Moreover, power allocation level can be decreased because channel variation can be reduced by using the jointly updated weight. However, it needsthe calculation of the antenna weights in every subcarrier for performance improvement. This could imply an enormous computational burden. However, the computational complexity can be reduced significantly by using the same set of the antenna weights for the adjacent subcarriers instead of calculating antenna weights for every subcarrier. We have analyzed the impact of subcarrier grouping for weight calculation on the system performance.

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  Cite this article

[IEEE Style]

H. Park and J. Kim, "Performance analysis of Wireless Internet system employing joint adaptive array antennas," The Journal of Korean Institute of Communications and Information Sciences, vol. 32, no. 5, pp. 433-440, 2007. DOI: .

[ACM Style]

Hyun-Hwa Park and Jeong-ho Kim. 2007. Performance analysis of Wireless Internet system employing joint adaptive array antennas. The Journal of Korean Institute of Communications and Information Sciences, 32, 5, (2007), 433-440. DOI: .

[KICS Style]

Hyun-Hwa Park and Jeong-ho Kim, "Performance analysis of Wireless Internet system employing joint adaptive array antennas," The Journal of Korean Institute of Communications and Information Sciences, vol. 32, no. 5, pp. 433-440, 5. 2007.

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pISSN : 1226 - 4717
eISSN : 2287 - 3880