Encoding and compensation schemes using improved pre-equalization for the 64B/66B Encoder

Kthik Balasubramanian, Sedig Salem Agili, Aldo W. Morales

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

This paper proposes an improved pre-equalization approach for the transmitter in the new high speed communication IEEE 802.3ba 40G/100G Ethernet standards. It is noted that the new 64b/66b encoder, for the above standards, causes a shift in the signal's power spectral density. Preliminary results show that the power shift is not uniform. Depending of the bit rate, in some cases the encoder shifts the spectrum from the low frequency to the high frequency region of the spectrum; at other bit rates is the opposite. This problem is compounded by the attenuation of the signal caused by the frequency response of a typical physical channel. In this paper, a transmitter pre-equalizer is proposed that compensates for this spectrum shift. In addition, this approach is aimed at emerging high speed data standards which are transmitting at 25 Giga bits per second (Gbps) on a single trace using the 64b/66b encoder. Based on our previous experience, a receiver equalizer will be proposed to enhance the performance legacy backplanes so that they can work up to the 25 Gbps speeds.

Original languageEnglish (US)
Title of host publication2012 IEEE International Conference on Consumer Electronics, ICCE 2012
Pages361-363
Number of pages3
DOIs
StatePublished - Mar 29 2012
Event2012 IEEE International Conference on Consumer Electronics, ICCE 2012 - Las Vegas, NV, United States
Duration: Jan 13 2012Jan 16 2012

Publication series

NameDigest of Technical Papers - IEEE International Conference on Consumer Electronics
ISSN (Print)0747-668X

Other

Other2012 IEEE International Conference on Consumer Electronics, ICCE 2012
CountryUnited States
CityLas Vegas, NV
Period1/13/121/16/12

All Science Journal Classification (ASJC) codes

  • Industrial and Manufacturing Engineering
  • Electrical and Electronic Engineering

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  • Cite this

    Balasubramanian, K., Agili, S. S., & Morales, A. W. (2012). Encoding and compensation schemes using improved pre-equalization for the 64B/66B Encoder. In 2012 IEEE International Conference on Consumer Electronics, ICCE 2012 (pp. 361-363). [6161902] (Digest of Technical Papers - IEEE International Conference on Consumer Electronics). https://doi.org/10.1109/ICCE.2012.6161902