TY - GEN
T1 - Forward error correction for high-speed I/O
AU - Narasimha, Rajan Lakshmi
AU - Shanbhag, Naresh
PY - 2008
Y1 - 2008
N2 - Modern state-of-the-art high-speed (Gb/s) I/O links today rely exclusively upon an equalization-based transceiver to achieve a bit error-rate (BER) of 10-15. This paper explores the potential of applying forward error-correction (FEC) in such links to reduce power and BER. The FEC coding gain can be employed to lower the power consumed in the analog components (e.g., transmit driver, clock recovery unit (CRU)) since these do not scale with process technology. A BER improvement of six orders-of-magnitude and ten orders-of-magnitude is demonstratedfor a 20" FR4 channel operating at 10 Gb/s with a LE and a DFE, respectively, using a BCH code. Savings in the encoderdecoder power overhead of up to 50% is demonstrated for a (63, 36, 11) BCH code using a novel gated decoder architecture.
AB - Modern state-of-the-art high-speed (Gb/s) I/O links today rely exclusively upon an equalization-based transceiver to achieve a bit error-rate (BER) of 10-15. This paper explores the potential of applying forward error-correction (FEC) in such links to reduce power and BER. The FEC coding gain can be employed to lower the power consumed in the analog components (e.g., transmit driver, clock recovery unit (CRU)) since these do not scale with process technology. A BER improvement of six orders-of-magnitude and ten orders-of-magnitude is demonstratedfor a 20" FR4 channel operating at 10 Gb/s with a LE and a DFE, respectively, using a BCH code. Savings in the encoderdecoder power overhead of up to 50% is demonstrated for a (63, 36, 11) BCH code using a novel gated decoder architecture.
UR - http://www.scopus.com/inward/record.url?scp=70349693961&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=70349693961&partnerID=8YFLogxK
U2 - 10.1109/ACSSC.2008.5074674
DO - 10.1109/ACSSC.2008.5074674
M3 - Conference contribution
AN - SCOPUS:70349693961
SN - 9781424429417
T3 - Conference Record - Asilomar Conference on Signals, Systems and Computers
SP - 1513
EP - 1517
BT - 2008 42nd Asilomar Conference on Signals, Systems and Computers, ASILOMAR 2008
T2 - 2008 42nd Asilomar Conference on Signals, Systems and Computers, ASILOMAR 2008
Y2 - 26 October 2008 through 29 October 2008
ER -