文章基本信息

标题：Simulative Investigations for Robust Frequency Estimation Technique in OFDM System
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作者：Kussum Bhagat ; Jyoteesh Malhotra
期刊名称：International Journal of Future Generation Communication and Networking
印刷版ISSN：2233-7857
出版年度：2015
卷号：8
期号：4
页码：187-192
DOI：10.14257/ijfgcn.2015.8.4.18
出版社：SERSC
摘要：OFDM (Orthogonal Frequency Division Multiplexing) is a promising technique for 4G and 3GPP LTE system in terms of providing the higher data rate and efficient use of bandwidth. But OFDM suffers from ISI and ICI interferences in wireless and fading environment. There is a loss of certain amount of data because of these interferences, thus synchronization is required. It is important to estimate and correct the start of OFDM symbol efficiently to reduce timing and frequency offset errors. The paper mainly focus on the CFO problem present in OFDM system, describes the effect of CFO in OFDM system and provides the estimation techniques for CFO in time domain and frequency domain. The simulation results are performed for the CFO estimation technique with different values of CFO and then results has been compared.
关键词：OFDM; CFO; ISI; ICI