Title :
Density evolution analysis of device mismatch in analog decoders
Author :
Winstead, Chris ; Schlegel, Christian
Author_Institution :
Dept. of Electr. & Comput. Eng., Alberta Univ., Edmonton, Alta., Canada
fDate :
27 June-2 July 2004
Abstract :
All analog circuits are affected by device mismatch, slight errors in the physical characteristics of analog devices. In many applications, mismatch reduces precision, making power and complexity advantages irrelevant. In this paper, we examine the effects of mismatch for decoders based on Gilbert multipliers and the sum-product algorithm.
Keywords :
analogue circuits; iterative decoding; parity check codes; Gilbert multiplier; analog decoder; density evolution analysis; device mismatch; sum-product algorithm; Analog circuits; Analog computers; Circuit noise; Circuit topology; Feedforward systems; Iterative decoding; Laboratories; Parity check codes; Power engineering computing; Sum product algorithm;
Conference_Titel :
Information Theory, 2004. ISIT 2004. Proceedings. International Symposium on
Print_ISBN :
0-7803-8280-3
DOI :
10.1109/ISIT.2004.1365331
