Browse > Article

A downlink beam synthesized method considering phase matching between common overhead channel and traffic channel in FDD/CDMA systems  

이준성 (연세대학교 전기전자공학과)
이충용 (연세대학교 전기전자공학과)
Publication Information
Journal of the Institute of Electronics Engineers of Korea TC / v.41, no.11, 2004 , pp. 67-72 More about this Journal
Abstract
In this paper, we propose a downlink beamforming method which is considered common pilot channel for coherent detection and dedicated traffic channel for desired user in FDD/CDMA systems. The existing downlink beamforming system produces phase mismatch between traffic and pilot signals at desired mobile as well as interference to other mobiles. A new downlink beamforming method can solve above problem based on least squares method between reference function and beamforming function. A numerical analysis shows that the proposed downlink beamforming method matches well and gives low BER performance.
Keywords
Downlink beamforming; common pilot beam; coherent detection; FDD/CDMA;
Citations & Related Records
연도 인용수 순위
  • Reference
1 Seungchul Yang, Dae-Hee Youn and Chungyong Lee 'LMS based forward-link beamforming using reverse-link channel estimator in FDD /CDMA system' VTC2001 fall   DOI
2 Joseph C. Liberti and Theodore S. Rappaport, Smart Antennas for Wireless Communications. Prentice Hall, 1999
3 D. Gerlach and A. Paulraj, 'Base-station transmitter antenna arrays with mobile to base feedback', Conference on Signals, Systems and Computers, vol.2, pp.1432-1436, 1993   DOI
4 Simon Hakin, Adaptive Filter Theory, Prentice Hall, 1996