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DC25_PAPER_Track09_PostFECBERAnalysisof200Gbs_Barrie_V2.pdf

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1、 Post-FEC BER Analysis of 200 Gb/s Wireline Systems using an FPGA Platform Richard Barrie,University of Toronto richard.barrieisl.utoronto.ca Ming Yang,University of Toronto/Alphawave Semi ming.yangisl.utoronto.ca Hossein Shakiba,Huawei Technologies Canada Anthony Chan Carusone,University of Toronto

2、/Alphawave Semi tony.chan.carusoneisl.utoronto.ca Abstract As wireline communication links transition from 100 Gb/s to 200 Gb/s per lane,new and complex forward error correction(FEC)architectures have been adopted to achieve low bit error ratios(BERs).It is essential to understand how these architec

3、tures impact link performance under various channel conditions.However,software-based time-domain simulations are incapable of demonstrating sufficiently low post-FEC BERs in a reasonable amount of time,and existing statistical BER analysis techniques are incapable of accurately modeling the complex

4、 FEC architecture proposed for 200 Gb/s wireline systems.This paper presents a flexible platform for field-programmable gate array(FPGA)-accelerated time-domain BER simulations.The platform includes functionality to model wireline systems relevant to the upcoming 200 Gb/s Ethernet standard that incl

5、ude multi-part links,concatenated FEC,soft-decision(SD)decoding,and convolutional interleaving.This FPGA platform can accurately demonstrate post-FEC BERs at the 10-12 level within a day of simulation time,a speed improvement by a factor of at least 10,000 over software-based simulation platforms.Au

6、thors Biography Richard Barrie received his M.A.Sc.degree from the University of Toronto in 2024.His research interests are in system modeling and design for high-speed communications.Ming Yang received his Ph.D.from the University of Toronto in 2024.He works as a systems engineer at Alphawave Semi.

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1. **研究背景**:200Gb/s有线系统需采用级联FEC架构(内码为扩展汉码,外码为KP4码)以满足低误码率(CER<1.45×10⁻¹¹)要求,但软件仿真速度慢,统计模型无法准确建模复杂架构。 2. **FPGA平台优势**:基于Xilinx VCU108 FPGA,支持多链路、软判决解码、卷积交织等模块,仿真速度达1.2-30Gb/s,比软件快至少10,000倍,可在1天内实现10⁻¹²级CER仿真。 3. **关键性能**: - 软判决内码+交织方案较仅KP4码提升2dB SNR(AWGN信道)。 - 多分段链路中,内码可优化光学链路误码分配,外码应对突发错误。 4. **应用价值**:平台可验证200Gb/s以太网标准设计,如误码分配方案(图18显示内码可降低0.3dB性能损失)。
**FEC如何加速仿真?** **200Gb/s链路如何纠错?** **软判决解码有何优势?**
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