Singular Direction-Based Quantizer and Receiver Designs for User Cooperative Distributed Reception
- Authors
- Song, Jiho; Hyun, Seong-Hwan; Kim, Keunwoo; Yoon, Young-Jun; Park, Juho; Lee, Moon-Sik; Lee, Jong-Ho; Kim, Seong-Cheol
- Issue Date
- Mar-2023
- Publisher
- Institute of Electrical and Electronics Engineers
- Keywords
- Distributed reception; signal quantization; user cooperation; ultradense network
- Citation
- IEEE Systems Journal, v.17, no.1, pp 349 - 360
- Pages
- 12
- Indexed
- SCIE
SCOPUS
- Journal Title
- IEEE Systems Journal
- Volume
- 17
- Number
- 1
- Start Page
- 349
- End Page
- 360
- URI
- https://scholarworks.bwise.kr/erica/handle/2021.sw.erica/112970
- DOI
- 10.1109/JSYST.2022.3229319
- ISSN
- 1932-8184
1937-9234
- Abstract
- 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.
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