標題: Algorithm for a memory-based Viterbi decoder
作者: Lee
Chen-Yi
Lin
Chien-Ching
Wu
Chia-Cho
公開日期: 28-Aug-2007
摘要: A method of convolutional decoding with a memory-based Viterbi decoder employs the property of a trace-back path; that is, the similarity between two consecutive trace-back paths becomes higher as the data error rate goes down. Therefore, the method of the invention saves the previous trace-back path into a register, and as soon as the current trace-back path is found to be the same as the previous one, the demanded path is obtained. After that, the memory read operations will stop, thereby reducing the power consumption caused by memory read operations. Prior to path trace-back, the path prediction can be executed by utilizing the property that the minimum path metric and the path are consecutive. The invention reduces the number of memory access operations and power consumption by employing the mechanisms of path matching and path prediction.
官方說明文件#: H03M013/03
URI: http://hdl.handle.net/11536/104782
專利國: USA
專利號碼: 07263653
Appears in Collections:Patents


Files in This Item:

  1. 07263653.pdf

If it is a zip file, please download the file and unzip it, then open index.html in a browser to view the full text content.