Title :
On mismatch errors in analog-VLSI error correcting decoders
Author :
Lustenberger, Felix ; Loeliger, Hans-Andrea
Author_Institution :
Lab. of Signal & Inf. Process., Swiss Fed. Inst. of Technol., Zurich, Switzerland
Abstract :
A new type of nonlinear analog transistor networks has recently been proposed for “turbo” decoding of error correcting codes. However, the influence of various nonidealities on the performance of such analog decoders is not yet well understood. The paper addresses the performance degradation due to transistor mismatch. Some analytical results are derived that allow to compare the accuracy of analog decoders with that of digital decoders. Moreover, these results enable to incorporate transistor mismatch into fast high-level simulations
Keywords :
VLSI; analogue integrated circuits; analogue processing circuits; decoding; error correction codes; turbo codes; analog VLSI decoder; error correcting code; high-level simulation; mismatch error; nonlinear analog transistor network; turbo decoding; Circuit simulation; Computer errors; Decoding; Energy consumption; Error correction; Error correction codes; Parity check codes; Probability distribution; Signal processing algorithms; Turbo codes;
Conference_Titel :
Circuits and Systems, 2001. ISCAS 2001. The 2001 IEEE International Symposium on
Conference_Location :
Sydney, NSW
Print_ISBN :
0-7803-6685-9
DOI :
10.1109/ISCAS.2001.922206
