Title :
A Reconfigurable Viterbi Decoder for a Communication Platform
Author :
Ahmed, Imran ; Arslan, Tughrul
Author_Institution :
Sch. of Electron. & Eng., Edinburgh Univ.
Abstract :
A new large constraint length, soft decision Viterbi decoder fabric is presented for deployment using platform based system on chip methodologies. The decoder can be reconfigured for standards such as CDMA2000, WCDMA (UMTS), ADSL, IEEE 802.11, and GSM. Maximum resource allocation and performance is achieved by reusing components within turbo decoder base array. This cross platform Viterbi decoder is reconfigurable between different trellis types, constraint lengths and rates making it ideal for a unified multi-standard telecommunication platform. In addition, the authors also propose a novel technique for dynamic reconfiguration in order to achieve faster context switching between different mappings. The reconfigurable fabric is implemented as a subset of turbo decoder array on a 180 nm UMC process technology
Keywords :
VLSI; Viterbi decoding; system-on-chip; turbo codes; 180 nm; ADSL; CDMA2000; GSM; IEEE 802.11; UMC process technology; UMTS; WCDMA; maximum resource allocation; multi-standard telecommunication platform; reconfigurable Viterbi decoder; system on chip methodologies; turbo decoder array; Counting circuits; Decoding; Fabrics; History; Multiaccess communication; Optical wavelength conversion; Read-write memory; System-on-a-chip; Very large scale integration; Viterbi algorithm;
Conference_Titel :
Field Programmable Logic and Applications, 2006. FPL '06. International Conference on
Conference_Location :
Madrid
Print_ISBN :
1-4244-0312-X
DOI :
10.1109/FPL.2006.311248
