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In this paper, taking the multipath spread of the channel into account, the performance of two-way amplify-and-forward relaying over Nakagami-m frequency-selective fading channels is analyzed. Based on the channel state information (CSI), the exact probability density functions of the received signal-to-noise power ratio (SNR) for semi-blind and channel state information assisted AF relaying are derived...
We propose simple 2×2 MIMO 60-GHz RoF systems using single-electrode MZMs. Employing signal-signal beating interference mitigation, IQ imbalance compensation, and bit-loading technique, >40-Gbps OFDM signals over 12-km fiber and 3.5-m wireless transmission are achieved.
We experimentally demonstrate a 50-Gbps PDM-OFDM system with a direct-detection BLAST-aided receiver. Without dynamic polarization tracking, the PDM-OFDM system can achieve BER of 10-3 over all possible SOP with <;2.8-dB difference of OSNR requirement.
We propose a simple 60GHz RoF system using a single-electrode MZM with transmission distance improvement from 3km to 10km. With beat noise mitigation algorithm, SNR can be improved by up to 5.5dB.
The conventional amplify-and-forward relaying protocol has less complex but worse performance than the decode-and-forward type. In the orthogonal frequency division multiplexing (OFDM) multihop relay systems, the system capacity can be enhanced via using the subcarrier permutation scheme at the relay terminals. However, under the multiuser scenario, one subcarrier may possess the best condition for...
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