现代电子技术2012，Vol.35Issue(3)：119-122,4.
OFDM系统中改进的16QAM软判决解调算法
An improved soft decision 16QAM demodulation algorithm for OFDM system
摘要
Abstract
For the transmission of OFDM signal in multipath fading channel, an improved soft information calculating method for 16QAM demodulation is proposed. The overall signal-to-noise ratio level is improved by introducing the channel information in equalization? Thus the results of soft decision contain more channel information, thereby, the performance of soft decision decoding is improved. Simulation results show that the proposed algorithm can effectively improve the system performance in multipath fading channel, and is easy to be implemented.关键词
正交频分复用/16QAM/软判决/对数似然比Key words
OFDM/ 16QAM/ soft decisions log-likelihood ratio分类
信息技术与安全科学引用本文复制引用
张力,施玉松,姜建,李甲,王营冠..OFDM系统中改进的16QAM软判决解调算法[J].现代电子技术,2012,35(3):119-122,4.基金项目
国家科技重大专项基金资助项目(2009ZX03006-003-01) （2009ZX03006-003-01）
