Development of a Channel Emulator for Evaluation of MIMO-OFDM and SC-FDMA Systems
This paper describes the hardware design of a wideband radio channel emulator for evaluating the bit error rate (BER) performances of two modern communications systems. The main system application described here is a multiple input multiple output - orthogonal frequency division multiplexing (MIMO-OFDM) system with beamforming. The performance of MIMO systems are dependent on the spatial correlation between channels and this is emulated using Cholesky factorization to compute real-time channels with a desired correlation. The em- ulator implements various contemporary radio channel models (e.g. Gaussian, Jakes, and Zheng). Up to sixteen independent channels are programmable for a 4 × 4 MIMO system. The sec- ond application is single-carrier frequency domain equalization. Single carrier frequency division multiple access (SC-FDMA) is deployed in the uplink of 3GPP long term evolution (LTE) systems and uses a single-input single-output (SISO) channel. The system development on a field programmable gate array (FPGA) is described.
Julian Webber Toshihiko Nishimura Takeo Ohgane Yasutaka Ogawa
Graduate School of Information Science and Technology, Hokkaido UniversityKita 14, Nishi 9, Kita-ku, Graduate School of Information Science and Technology, Hokkaido University Kita 14, Nishi 9, Kita-ku
国际会议
2011亚太信号与信息处理协会年度峰会(APSIPAASC 2011)
西安
英文
1-4
2011-10-18（万方平台首次上网日期，不代表论文的发表时间）