Original scientific paper
https://doi.org/10.32985/ijeces.13.10.2
Analog Feedback Communication System with Receive Diversity and MRC
Richa Tengshe
; Department of Electronic and Communication Engineering, CMR Institute of Technology, Bengaluru, Karnataka, India
Navin Kumar
; Amrita School of Engineering Bengaluru, Amrita Vishwa Vidyapeetham University India
Abstract
This study investigates the analog feedback communication system (AFCS) architecture considering Rayleigh fading channel model and receive diversity maximum ratio combining (MRC). This architecture employs a power-efficient transmitting unit, an estimator at the receiver side and iterative algorithm that minimizes the mean square error (MSE). Using the feedback channel, the estimated received sample is fed back to the transmitter. The performance of AFCS with the Rayleigh fading channel model is evaluated using MSE optimization. The investigation revealed that when compared to a single input single output AFCS system, the diversity-enabled AFCS system achieves negligible MSE in fewer iterations. MSE of order 10 −3 is achieved by 6 receive antennas with MRC in only 4 iterations at 0dB channel signal-to-noise ratio (SNR), compared to a single input single output AFCS system that requires more than 10 iterations to achieve the same order of MSE.
Keywords
Shannon Capacity; Analog Feedback Communication System; Receive Diversity; Maximum Ratio Combining; Optimum Performance Theoretically attainable;
Hrčak ID:
290468
URI
Publication date:
21.12.2022.
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