High throughput concurrent lookahead adaptive decision feedback equaliser

被引：17
|
作者：
Lin, Y. -C. [1 ]
Jou, S. -J. [2 ]
Shiue, M. -T. [1 ]
机构：
[1] Natl Cent Univ, Dept Elect Engn, Chungli 320, Taiwan
[2] Natl Chiao Tung Univ, Dept Elect Engn, Hsinchu 300, Taiwan
来源：
IET CIRCUITS DEVICES & SYSTEMS | 2012年 / 6卷 / 01期
关键词：
DESIGN;
D O I：
10.1049/iet-cds.2010.0445
中图分类号：
TM [电工技术]; TN [电子技术、通信技术];
学科分类号：
0808 ; 0809 ;
摘要：
A time-domain adaptive decision feedback equaliser (ADFE) for multi-gigabit wire-line 2-pulse amplitude modulation (PAM) communication systems is proposed. The throughput rate of a conventional ADFE is limited by the loops in the circuit. This investigation develops two methods for breaking or virtually breaking these loops. The first is the method of batch mode coefficient updating (BMCU), and the second is the concurrent lookahead (CLA) method. Since the loops are broken or virtually broken, a pipeline and/or a parallel method can be applied to design a throughput-rate-unlimited ADFE. The results of a simulation of the 10GBASE-S system reveal that the proposed BMCU-based CLA ADFE has the same average signal-to-noise ratio (SNR) as the original sequential ADFE for multi-mode fibres of length 30-90 m.
引用
收藏
页码：52 / 62
页数：11
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