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[Other4x4mimo

Description: A 2x2 multiple-input multiple-output (MIMO) architecture using dual-polarized antennas (DPAs) is considered with orthogonal frequency division multiplexing (OFDM). The performance of DPAs is evaluated for adaptive polarization (AP) transmission techniques in time-varying multipath channels impaired by polarization mode dispersion (PMD) and polarization-dependent loss (PDL). AP transmission techniques considered include power gain maximization, polarization dispersion minimization for interference avoidance, polarization multiplexing with waterfilling, and a suboptimal multiplexing strategy that enables direct recovery of the polarization multiplexed streams, thereby simplifying the design of the receiver. Measured time-varying dual-polarized channel realizations from mobile-to-mobile experiments are used to estimate the capacity, diversity, and interference avoidance performance of the adaptive approaches.
Platform: | Size: 1401856 | Author: room | Hits:

[Post-TeleCom sofeware systemsNeural-Network--channel-Estimation

Description: the effects of neural network aided estimation in such receivers are considered. Neural network acts as a pre-processing block to the estimator.-Orthogonal frequency division multiplexing (OFDM) has high data rate capacity and lower Inter Symbol Interference (ISI) and is considered as the best solution for next generation mobile communication. Multiple Inputs and Multiple Output (MIMO) antenna system improve reception through spatial diversity and high end coding. Combining these two, offers high interference mitigation in wireless receivers. In this paper, the effects of neural network aided estimation in such receivers are considered. Neural
Platform: | Size: 344064 | Author: wangxx | Hits:
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