FPGA-Based Channel Simulator for a Wireless Network Emulator
FPGA-Based Channel Simulator for a Wireless Network Emulator
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用于无线网络仿真器的基于 FPGA 的通道仿真器
DOI：
10.1109/vetecs.2009.5073565
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发表时间：
2009
期刊：
影响因子：
--
通讯作者：
P. Steenkiste
中科院分区：
文献类型：
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作者：
Kevin C. Borries;Glenn Judd;D. Stancil;P. Steenkiste
无线信道仿真器是测试无线电设备的重要工具，尤其是在移动的环境中。无线网络仿真器为测试无线电网络系统提供了与传统信道仿真器为点对点无线电链路提供的相同的精度和控制。网络仿真器比传统的通道仿真器需要更多的独立通道。这个问题对于仿真器中的真实的时间信道仿真器来说尤其具有挑战性。讨论了无线网络信道模拟器设计的挑战，并在Xilinx Virtex-II Pro FPGA上进行了设计。该信道模拟器可以模拟15个节点之间的210个独立信道，带宽为90 MHz。通过测量802.11b无线电通过信道模拟器传输之间的传输层吞吐量，验证了设计的性能。
Wireless channel emulators are important tools for testing radio devices, especially in mobile environments. Wireless network emulators give the same accuracy and control for testing radio network systems that traditional channel emulators give to point to point radio links. Network emulators require many more independent channels than traditional channel emulators. This problem is particularly challenging for the real time channel simulator in the emulator. The challenges of designing a wireless network channel simulator are discussed and a design is presented on a Xilinx Virtex-II Pro FPGA. This channel simulator can model 210 independent channels between 15 nodes with a bandwidth of 90MHz. The performance of the design was verified by measuring transport-layer throughput between 802.11b radios transmitting through the channel simulator.