Proceedings of the IEEK Conference (대한전자공학회:학술대회논문집)
- 2003.07b
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- Pages.1173-1176
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- 2003
Design of Viterbi Decoder using Circularly-connected Analog Parallel Processing Networks
순환형 아날로그 병렬처리 회로망에 의한 비터비 디코더회로 설계
Abstract
A high speed Viterbi decoder with a circularly connected 2-dimensional analog processing cell array is proposed. It has a 2-dimensional parallel processing structure in which an analog processing cell is placed at each node of a trellis diagram. The constraints' length of trellis diagram is connected circularly so that infinitively expanding trellis diagram is realized with the fixed size of circuits. The proposed Viterbi decoder has advantages in that it is operated with better performance of error correction, has a shorter latency and requires no path memories. The performance of error correction with the proposed Viterbi decoder is tested via the software simulation.
Keywords