Performance Analysis of the Soft-input Viterbi Decoder Based on QAM in the IEEE802.11g System

摘要：

The Viterbi algorithm is a method based on the Maximum- Likelihood estimation; it detects the one that is most likely to have generated from the received sequence. This paper researched the Viterbi decoding algorithm of ERP-OFDM physical layer pattern in IEEE802.11g system, analyzed the algorithm performance based on the distance metrics using correlative value, uniting the character of the Gray code constellation mapping. The simulation result indicated that adopting the correlative value as the distance metrics, the new algorithm has a good decoding performance, and is easier to realize by hardware, which compared with the usual Viterbi decoding.

关键词： IEEE802.11g QAM Viterbi OFDM

作者: WANG Jinfu XU Zhimeng WU Huayu YU Lun

作者单位: Department of Information & Telecommunication Engineering Fuzhou University Fuzhou, 350002, P.R.China

会议类型: 国际会议

会议名称: 第一届国际计算机新科技与教育学术会议(Proceedings of the First International Conference on Computer Science & Education ICCSE2006)

会议地点: 厦门

会议语种:英文

页码: 719-722

在线出版日期: 2006-07-27（万方平台首次上网日期，不代表论文的发表时间）