High Order QAM Signals Recognition Based on Layered Modulation

摘要：

For the effective recognition of high order QAM signals which have ample constellation, here is a kind of recognition algorithm which adopts layered thought combining with high order cumulant. Using weighting method of power to make the high order QAM signals composed of several low order modulation signals. Adjudging received signals layer by layer owing to layered modulation thought, information of other layer are regarded as interference. To the low order modulation of every layer, here adopts tradition cumulant method to identify. This algorithm is different from the traditional layered recognition technique and turns to have improved the identification efficiency. The entire square QAM signals whose order numbers are smaller than 1024 can be distinguished out when SNR is 30dB.

作者: Yang Liu Zhang Lin Zhang Zhongpei

作者单位: National Key Laboratory of Communications, University of Electronic Science and Technology of China, Chengdu, China

会议类型: 国际会议

会议名称: 2009国际通信电路与系统学术会议(ICCCAS 2009)(2009 International Conference on Communications，Circuits and Systems)

会议地点: 成都

会议语种:英文

页码: 73-76

在线出版日期: 2009-07-23（万方平台首次上网日期，不代表论文的发表时间）