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Hybrid Digital-Analog (HDA) transmission has been proved to be an effective technique to overcome the “cliff effect” in wireless video communication. In this paper, we propose a novel HDA modulation scheme. The phase of modulation symbol is used to carry the digital signal while the amplitude of modulation symbol is used to carry analog signal. In order to make full use of channel capacity, the bit...
In this paper, we study carrier frequency offset estimation and correction for uplink multi-user MIMO (UL MU-MIMO) for Wi-Fi, where distributed stations (STAs) send multiple data streams to a common access point (AP) with multiple receive antennas. We provide a description of the proposed system, and propose a three-step approach using a joint phase estimation algorithm for carrier frequency synchronization...
We study antenna training method for millimeter wave MIMO communication systems and develop iterative antenna training (IAT) algorithm and protocols. The newly developed training method features low training overhead as well as low computation complexity, and has great application potential in practice.
We study OFDM symbol interleaver design for gigabit per second (Gbps) wireless communications over the millimeter-wave (mmWave) frequency band. A bit-reversal symbol interleaver is proposed, which significantly outperforms conventional block interleaver design. It is demonstrated that the new interleaver design can be naturally combined with FFT operation and simplifies the hardware implementation...
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