TY - GEN
T1 - Design of early stopping unit in parallel turbo decoder based on galois field operation
AU - Kim, Hyeji
AU - Kim, Ji Hoon
PY - 2013
Y1 - 2013
N2 - The early stopping of turbo decoder is widely used in LTE / LTE-Advanced systems to avoid unnecessary iterations. To achieve high throughput requirements in next generation mobile communication systems, parallel turbo decoding where multiple SISO (Soft-Input Soft-Output) decoders work is commonly employed. Although CRC (Cyclic Redundancy Check)-based stopping criterion is well known by its superior performance, conventional CRC implementation is hard to be applied to parallel turbo decoding due to the timing overhead incurred by the intrinsic feature where the input data should be serialized. In this paper, to reduce the timing overhead, we present the parallel CRC architecture based on GF (Galois field) operations with negligible hardware overhead.
AB - The early stopping of turbo decoder is widely used in LTE / LTE-Advanced systems to avoid unnecessary iterations. To achieve high throughput requirements in next generation mobile communication systems, parallel turbo decoding where multiple SISO (Soft-Input Soft-Output) decoders work is commonly employed. Although CRC (Cyclic Redundancy Check)-based stopping criterion is well known by its superior performance, conventional CRC implementation is hard to be applied to parallel turbo decoding due to the timing overhead incurred by the intrinsic feature where the input data should be serialized. In this paper, to reduce the timing overhead, we present the parallel CRC architecture based on GF (Galois field) operations with negligible hardware overhead.
KW - GF multiplication and addition
KW - parallel CRC
KW - parallel turbo decoder
KW - stopping criteria
UR - http://www.scopus.com/inward/record.url?scp=84906899679&partnerID=8YFLogxK
U2 - 10.1109/ISOCC.2013.6863983
DO - 10.1109/ISOCC.2013.6863983
M3 - Conference contribution
AN - SCOPUS:84906899679
SN - 9781479911417
T3 - ISOCC 2013 - 2013 International SoC Design Conference
SP - 50
EP - 51
BT - ISOCC 2013 - 2013 International SoC Design Conference
PB - IEEE Computer Society
T2 - 2013 International SoC Design Conference, ISOCC 2013
Y2 - 17 November 2013 through 19 November 2013
ER -