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Analysis of IEEE 802.11a wireless LAN system considering frequency offset compensation and channel estimation in the indoor multipath channel  

오동진 (전남대학교 정보통신연구소)
김철성 (전남대학교 전자컴퓨터 정보통신공학부)
Publication Information
Journal of the Institute of Electronics Engineers of Korea TC / v.41, no.9, 2004 , pp. 47-54 More about this Journal
Abstract
The previous works for WLAN system based on OFDM is mainly individual study for independent frequency offset or symbol synchronization. In this paper, the performance of IEEE 802.11a WLAN(Wireless Local Area Network) system in the realistic indoor multipath channel models is analyzed with frequency offset compensation and channel estimation methods. For the performance analysis of the WLAN system indoor Rayleigh multipath channels are adopted, and the BER(Bit Error Rate) of WLAN system is calculated with y2 code-rate 16-QAM based on standard specification. From the simulation results, the difference of required Eb/No for BER of 10-3 is 1-2dB between the channel estimation and frequency offset compensation, and perfect channel estimation and no frequency offset.
Keywords
OFDM; WLAN; frequency offset; Indoor multipath channel; channel estimation;
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