SHERP

Design of a Channel-Aware OFDM Transceiver

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Authors
Choi, Ji-Woong; Lee, Yong-Hwan
Issue Date
2007-05
Publisher
Institute of Electrical and Electronics Engineers (IEEE);
IEEE Communications Society;
IEEE Signal Processing Society
Citation
IEEE Trans. Wireless Commun., vol. 6, pp. 1813-1822, 2007
Keywords
Channel-aware OFDM transceiverchannel state informationchannel impulse responseadaptive modulation with coding
Abstract
The transmission performance of an OFDM system can significantly be improved by exploiting the channel characteristics. In this paper, we consider the design of a channel-aware OFDM transceiver whose parameters are adjusted in response to the change of channel condition. To this end, we first estimate the channel state information (CSI), such as the signal to interference power ratio, low order moments of Doppler spectrum and power-delay profile of the channel. The proposed CSI estimator can estimate these CSI parameters altogether in a unique manner by exploiting the autocorrelation properties of the channel impulse response (CIR). Then, we design a CIR estimator and adaptive OFDM modulator that adjust their parameters according to the estimated CSI. Finally, we verify the performance of the proposed OFDM transceiver by computer simulation.
ISSN
1536-1276
Language
English
URI
http://hdl.handle.net/10371/6130
DOI
https://doi.org/10.1109/TWC.2007.360383
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College of Engineering/Engineering Practice School (공과대학/대학원)Dept. of Electrical and Computer Engineering (전기·정보공학부)Journal Papers (저널논문_전기·정보공학부)
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