TY - GEN
T1 - A 0.92mm2 23.4mW fully-compliant CTC decoder for WiMAX 802.16e application
AU - Yen, Shao Wei
AU - Hu, Ming Chih
AU - Chen, Chih Lung
AU - Chang, Hsie-Chia
AU - Jou, Shyh-Jye
AU - Lee, Chen-Yi
PY - 2009
Y1 - 2009
N2 - An area-efficient and fully-compliant decoder for convolutional turbo code (CTC) of WiMAX 802.16e is presented. The proposed decoder can support all 17 modes specified in IEEE 802.16e system. By scaling the extrinsic information, the Max-Log MAP algorithm is used to reduce the hardware complexity with the minimized performance loss. A two-phase extrinsic memory and reversed sliding window technique are demonstrated for less memory requirement and decoding latency. Moreover, a division-free reconfigurable interleaver architecture is implemented by simple addition and subtraction instead of division. Fabricated with the 90nm CMOS process, the proposed CTC decoder chip which occupies core area of 0.92mm2 can achieve 30Mb/s with 23.4mW power consumption.
AB - An area-efficient and fully-compliant decoder for convolutional turbo code (CTC) of WiMAX 802.16e is presented. The proposed decoder can support all 17 modes specified in IEEE 802.16e system. By scaling the extrinsic information, the Max-Log MAP algorithm is used to reduce the hardware complexity with the minimized performance loss. A two-phase extrinsic memory and reversed sliding window technique are demonstrated for less memory requirement and decoding latency. Moreover, a division-free reconfigurable interleaver architecture is implemented by simple addition and subtraction instead of division. Fabricated with the 90nm CMOS process, the proposed CTC decoder chip which occupies core area of 0.92mm2 can achieve 30Mb/s with 23.4mW power consumption.
UR - http://www.scopus.com/inward/record.url?scp=74049083300&partnerID=8YFLogxK
U2 - 10.1109/CICC.2009.5280876
DO - 10.1109/CICC.2009.5280876
M3 - Conference contribution
AN - SCOPUS:74049083300
SN - 9781424440726
T3 - Proceedings of the Custom Integrated Circuits Conference
SP - 191
EP - 194
BT - 2009 IEEE Custom Integrated Circuits Conference, CICC '09
PB - IEEE
T2 - 2009 IEEE Custom Integrated Circuits Conference, CICC '09
Y2 - 13 September 2009 through 16 September 2009
ER -