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Development of a Channel Emulator for Evaluation of MIMO-OFDM and SC-FDMA Systems

机译：开发用于评估MIMO-OFDM和SC-FDMA系统的信道仿真器

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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.
机译：本文介绍了宽带无线信道仿真器的硬件设计，该硬件设计用于评估两个现代通信系统的误码率（BER）性能。此处描述的主要系统应用是具有波束成形的多输入多输出-正交频分复用（MIMO-OFDM）系统。 MIMO系统的性能取决于通道之间的空间相关性，这可以使用Cholesky因子分解进行仿真，以计算具有所需相关性的实时通道。该仿真器实现了各种现代无线电信道模型（例如，高斯，杰克和郑）。对于4×4 MIMO系统，最多可以编程16个独立通道。第二个应用是单载波频域均衡。单载波频分多址（SC-FDMA）部署在3GPP长期演进（LTE）系统的上行链路中，并使用单输入单输出（SISO）信道。描述了现场可编程门阵列（FPGA）上的系统开发。

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