PRESENTING A NEW ALGORITHM FOR SYNCHRONIZATION AND CHANNEL ESTIMATION FOR MIMO-OFDM SYSTEMS

摘要：

In this paper, a new algorithm has introduced the most estimation similarity, channel coefficients fading and move the carrier frequency systems MIMOOFDM.The purpose of this paper provides an algorithm to synchronize and estimate channel coefficients which has low computational complexity.The proposed algorithm using the process sequence containing the training symbols, carrier frequency offset and channel coefficients fading, estimate in two consecutive stages.Consequently, low computational complexity and having easy implementation.Moreover, the algorithm can be used in a variety of systems STC-OFDM.To provide an appropriate scale to measure the efficiency of suggested EM algorithm, Cramer-Rao bounds are proposed.The results of performed simulations show the proper function of EM estimator in all SNR measures.

关键词： Multi-Input Multi-Output systems Synchronization Channel Estimation EM algorithm

作者: NAVID DARYASAFAR HAMID DEHGHANI ALIREZA MALLAHZADEH FIROUZ MOHSENI FARD

作者单位: Department of Communication,boushehr Branch,Islamic Azad University Department of Communication,Malek ashtar university,Tehran,Iran Department of Communication,Khalij fars University Boshehr,Iran Department of Communication,Khormoj Branch,Islamic Azad University

会议类型: 国际会议

会议名称: 3rd International Conference on Mechanical and Electrical Technology(ICMET2011) (2011第三届机械与电气技术国际会议)

会议地点: 大连

会议语种:英文

页码: 201-207

在线出版日期: 2011-08-26（万方平台首次上网日期，不代表论文的发表时间）