Proceedings of the IEEK Conference (대한전자공학회:학술대회논문집)

The Institute of Electronics and Information Engineers (대한전자공학회)
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A MIMO-OFDM System Based on Beamforming with Antenna Selection

안테나 선택을 이용한 Beamforming 기반의 MIMO-OFDM 시스템

  • Park, Dae-Jin (School of Electronic Engineering, Soongsil University) ;
  • Yang, Suck-Chel (School of Electronic Engineering, Soongsil University) ;
  • Shin, Yo-An (School of Electronic Engineering, Soongsil University)
  • 박대진 (숭실대학교 정보통신전자공학부) ;
  • 양석철 (숭실대학교 정보통신전자공학부) ;
  • 신요안 (숭실대학교 정보통신전자공학부)
  • Published : 2006.06.21
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Abstract

In this paper, to reduce uplink feedback information for the beam weight and simultaneously maintaining the performance, we propose a MIMO-OFDM (Multi Input Multi Output-Orthogonal Frequency Division Multiplexing) system based on beamforming with antenna selection. In the proposed system, to perform the beamforming with more useful transmit antennas, the optimal combination of transmit antennas with maximum MRT (Maximum Ratio Transmission) beamforming gain is selected. Simulation results reveal that the proposed MIMO-OFDM system adopting the beamforming with antenna selection can reduce the feedback information for the beam weights as compared to the system using all the transmit antennas without serious degradation of system performance.

Keywords