RF beamforming considering RF characteristics in MIMO system

Kyung Tae Jo, Young Chai Ko, Hong Chuan Yang

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

We propose the multiple-antenna RF beamforming scheme. The proposed scheme adopts the phase shifters and gain controllers in RF domain to compensate the wireless fading channels which is usually operated on the digital domain in the conventional beamforming scheme. Accordingly, the pro- posed scheme can have only single analog-to-digital/digital-to-analog (ADC/DAC) since the signals from multiple antennas are beamformed in the RF domain. Also, we propose the codebook search algorithm based on the codebook switching for the channel estimation and apply it to the phase shifter and the gain controller for the beamforming in the RF domain. Based on the analysis of output SNR of the proposed scheme and the simulations we show that the deterioration of BER performance compared to the optimal baseband beamforming techniques in MIMO-MRC [2] is not significant, while the power consumption is much reduced and the requirement of the digital hardware for baseband MODEM is much relaxed owing to the single ADC/DAC both at the transmitter and the receiver.

Original languageEnglish
Title of host publication2010 International Conference on Information and Communication Technology Convergence, ICTC 2010
Pages403-408
Number of pages6
DOIs
Publication statusPublished - 2010
Event2010 International Conference on Information and Communication Technology Convergence, ICTC 2010 - Jeju, Korea, Republic of
Duration: 2010 Nov 172010 Nov 19

Publication series

Name2010 International Conference on Information and Communication Technology Convergence, ICTC 2010

Other

Other2010 International Conference on Information and Communication Technology Convergence, ICTC 2010
CountryKorea, Republic of
CityJeju
Period10/11/1710/11/19

ASJC Scopus subject areas

  • Information Systems
  • Computer Networks and Communications

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  • Cite this

    Jo, K. T., Ko, Y. C., & Yang, H. C. (2010). RF beamforming considering RF characteristics in MIMO system. In 2010 International Conference on Information and Communication Technology Convergence, ICTC 2010 (pp. 403-408). [5674816] (2010 International Conference on Information and Communication Technology Convergence, ICTC 2010). https://doi.org/10.1109/ICTC.2010.5674816