摘要： 为满足千兆位以太网1000Base-T在5类线上传输1Gbps数据的要求,介绍了千兆以太网收发器物理编码子层的编码算法,并给出了ASIC实现方案。使用递归式系统卷积码和网格编码,可以达到约6dB的编码增益。用Verilog语言完成发送模块设计,仿真结果表明该设计完全符合802.3ab协议规范,能够满足千兆位以太网的传输要求。

关键词: 千兆位以太网, 物理编码子层, 递归式系统卷积码, 网格编码

Abstract: For the purpose of transmitting data on UTP category 5 at 1Gbps rate, as perceived as gigabit ethernet (GbE) 1000Base-T, this paper introduces the coding algorithm in the physical coding sublayer (PCS) as well as the ASIC implementation. The recursive systematic conventional code (RSC) and trellis code are applied, providing an asymptotic coding gain of 6dB. With the completion of transmit module by Verilog HDL, the simulation result affirms that the design well conforms to the specification of 802.3ab and thus meets the requirement of gigabit ethernet.

中图分类号: 

• TP393.11