东南大学学报（自然科学版）2017，Vol.47Issue(1)：6-11,6.DOI:10.3969/j.issn.1001-0505.2017.01.002
应用于高速串行链路的噪声预测部分响应最大似然均衡
Noise prediction partial response maximum likelihood equalization for high speed serial link
摘要
Abstract
To solve the problem of signal integrity of high speed serial signal transmission in the backplane channels at or above 25 Gbit/s,the partial response maximum likelihood (PRML)equali-zation scheme,which can achieve a tradeoff between the high speed and the low bit error rate (BER),is studied.The noise prediction PRML equalization,which can effectively reduce the hard-ware cost,is derived based on the noise prediction method.The BER performance and the hardware complexity are analyzed by the decision feedback equalization (DFE),the PRML equalization and the noise prediction PRML equalization,respectively,in the backplane channels with different atten-uation characteristics and on the different modulation modes.The results show that for the 25 Gbit/s non return zero (NRZ)signal,the BER performance of the noise prediction PRML equalization is better than those of the DFE and the PRML equalization.For the 12.5 Gbit/s 4 level pulse ampli-tude modulation (4PAM)signal,the PRML equalization can obtain better BER performance than the DFE.The hardware complexity of the noise prediction PRML equalization is better than that of the PRML equalization,making it more suitable for high speed serial link.关键词
信号完整性/噪声预测/硬件复杂度/串行链路Key words
signal integrity/noise prediction/hardware complexity/serial link分类
信息技术与安全科学引用本文复制引用
张银行,胡庆生..应用于高速串行链路的噪声预测部分响应最大似然均衡[J].东南大学学报（自然科学版）,2017,47(1):6-11,6.基金项目
国家自然科学基金资助项目（61471119）． （）
