室外时变异构信道MIMO硬件模拟器设计

B. Habib, G. Zaharia, G. El Zein
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引用次数: 1

摘要

介绍了一种多输入多输出(MIMO)传播信道的硬件模拟器。硬件模拟器再现了所需的无线电信道,并使测试“在表上”不同的MIMO系统成为可能。提出了模拟器数字模块的具体架构,以表征长期演进(LTE)系统的户外场景。提出了一种脉冲响应切换算法,并对时延的时变进行了控制。新架构是在Xilinx Virtex-IV现场可编程门阵列(FPGA)上设计的。分析了其精度、对FPGA的占用和时延。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
MIMO hardware simulator design for outdoor time-varying heterogeneous channels
This paper presents a hardware simulator of Multiple-Input Multiple-Output (MIMO) propagation channels. The hardware simulator reproduces a desired radio channel and makes it possible to test “on table” different MIMO systems. A specific architecture of the digital block of the simulator is presented to characterize an outdoor scenario for Long Term Evolution (LTE) systems. An algorithm is introduced to switch between the impulse responses and to control the time variation of the delays. The new architecture is designed on a Xilinx Virtex-IV Field Programmable Gate Array (FPGA). Its accuracy, occupation on the FPGA and latency are analyzed.
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