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Design of a Channel-Aware OFDM Transceiver
Cited 6 time in
Web of Science
Cited 7 time in Scopus
- Authors
- 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 transceiver ; channel state information ; channel impulse response ; adaptive 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
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