Singular Direction-Based Quantizer and Receiver Designs for User Cooperative Distributed Reception

In this article, we develop a distributed reception system to fully utilize spatial multiplexing gain by exploiting the massive connections in beyond fifth-generation networks. In a distributed reception system, assistant receiving nodes have to quantize the received signals in order to forward them...

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Bibliographic Details
Published in:IEEE systems journal 2023-03, Vol.17 (1), p.349-360
Main Authors: Song, Jiho, Hyun, Seong-Hwan, Kim, Keunwoo, Yoon, Young-Jun, Park, Juho, Lee, Moon-Sik, Lee, Jong-Ho, Kim, Seong-Cheol
Format: Article
Language:English
Subjects:
Algorithms
Backhaul networks
Data exchange
Device-to-device communication
Distributed reception
Electronic devices
Measurement
MIMO communication
Multiplexing
Performance evaluation
Quantization (signal)
Receiving antennas
Resource allocation
Resource management
signal quantization
Symbols
ultradense network
user cooperation
Citations: Items that this one cites
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Summary:In this article, we develop a distributed reception system to fully utilize spatial multiplexing gain by exploiting the massive connections in beyond fifth-generation networks. In a distributed reception system, assistant receiving nodes have to quantize the received signals in order to forward them to a final destination node. A signal quantizer with high-resolution codebooks can improve signal quantization performance, although it burdens the data-exchange link between devices. We propose signal quantization and reception strategies to facilitate the distributed reception system by allowing a small amount of data-exchange. First, we develop a singular direction-based signal quantizer to include more channel gain in the received signals by employing low-resolution codebooks. Furthermore, we develop a minimum mean square error type receiver for a user cooperation network to facilitate distributed reception without the aid of a fusion center. Lastly, a quantization resource allocation algorithm is developed to maximize network throughput by using limited quantization resources. Simulation results are presented to evaluate the sum-rate performance of the quantized distributed reception system.
ISSN:1932-8184
1937-9234
DOI:10.1109/JSYST.2022.3229319