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Performance Analysis of OFDM System Considering Carrier Frequency Offset in Wireless LAN Channel Environment  

Kim, Ji-Woong (Dongshin University, Division of Electronical ＆ Electronic Engineering)
Kang, Heau-Jo (Mokwon University, Division of Computer Multimedia Engineerin)
Lee, Kwon-Hyun (Chongju Polytechnic College)
Publication Information
Journal of information and communication convergence engineering / v.2, no.1, 2004 , pp. 1-4 More about this Journal
Abstract
In this paper, We analyzes how a synchronization error affects receiving system when using OFDM(Orthogonal Frequency Division Multiplexing) transmission method in wireless LAN channel environment in which we can efficiently transmit wide-band information data. As a performance improvement method, performance distortion can be improved by applying convolution coding. As a result, in OFDM system, we could see that the higher a frequency offset is, the worse performance will be, and we could see that there was performance improvement by applying convolution coding in OFDM system in order to reach (BER=$10^{-3}$). However, when we use 64QAM (64Quadrature Amplitude Modulation), there was a huge influence between carriers by frequency offset at 0.05, 0.1.
Keywords
Wireless LAN; OFDM; Frequency Offset; Convolution Coding;
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