Title :
A 24Mb/s radix-4 logMAP turbo decoder for 3GPP-HSDPA mobile wireless
Author :
Bickerstaff, M. ; Davis, L. ; Thomas, C. ; Garrett, D. ; Nicol, C.
Author_Institution :
Bell Labs, Lucent Technol., North Ryde, NSW, Australia
Abstract :
A 24Mb/s 3GPP-HSDPA radix-4 logMAP turbo decoder is designed for 3G data terminals. It features an approximate radix-4 logsum circuit to achieve 145MHz operation. Power is reduced using 1/2-iteration early termination and extrinsics are interleaved in companded format. The decoder core is 14.5mm/sup 2/ in 0.18/spl mu/m CMOS.
Keywords :
3G mobile communication; CMOS integrated circuits; maximum likelihood decoding; mobile radio; turbo codes; 0.18 micron; 145 MHz; 24 Mbit/s; 3G data terminal; 3GPP-HSDPA mobile wireless; CMOS logsum circuit; radix-4 logMAP turbo decoder; Australia; Calculators; Circuits; Clocks; Downlink; Frequency; Interleaved codes; Iterative decoding; Multiaccess communication; Throughput;
Conference_Titel :
Solid-State Circuits Conference, 2003. Digest of Technical Papers. ISSCC. 2003 IEEE International
Conference_Location :
San Francisco, CA, USA
Print_ISBN :
0-7803-7707-9
DOI :
10.1109/ISSCC.2003.1234244
