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The orthogonal frequency division multiplexing (OFDM) is one of the promising technologies to improve the spectral efficiency, enhance system capacity and mitigate inter-symbol interference in the wireless communication system. In this paper, we aim at the study on adaptive modulation and coding technologies for wireless system over frequency selective fading channel. This adaptive allocation algorithm...
This paper proposes a blind modulation detection technique for adaptive orthogonal frequency division multiplexing (adaptive OFDM) communications. Adaptive modulations are applied to improve communication performance in OFDM over complicated multi-path fading channels. This paper proposes a new method which reduces detection errors in blind modulation and improves communication throughput in adaptive...
This paper proposes a low power architecture that dynamically controls a word length in a wireless OFDM demodulator. Finding the optimum word length for digital systems is a difficult problem because the trade-off between hardware cost and system performance is not conclusive. Actual digital systems prepare a more than enough word length in circuit design level to avoid the worst condition caused...
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