Distributed Uplink Reception In Cloud Radio Access Networks: A Linear Coding Approach
- Authors
- Hong, Song-Nam; Jeon, Yo-Seb; Lee, Namyoon
- Issue Date
- Feb-2018
- Publisher
- IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC
- Keywords
- Cloud radio access network (C-RAN); finite-field multiple-input-multiple-output (FF-MIMO); lattice codes.
- Citation
- IEEE TRANSACTIONS ON VEHICULAR TECHNOLOGY, v.67, no.2, pp.1470 - 1481
- Indexed
- SCIE
SCOPUS
- Journal Title
- IEEE TRANSACTIONS ON VEHICULAR TECHNOLOGY
- Volume
- 67
- Number
- 2
- Start Page
- 1470
- End Page
- 1481
- URI
- https://scholarworks.bwise.kr/hanyang/handle/2021.sw.hanyang/17777
- DOI
- 10.1109/TVT.2017.2761398
- ISSN
- 0018-9545
- Abstract
- This paper considers an uplink cloud radio access network (C-RAN), in which L antenna terminals (ATs) are connected to a central process (CP) via digital error-free links of a finite-capacity R 0 , and serves K user terminals. In this network, novel low-complexity detection methods at the CP are proposed by incorporating a lattice-quantize-and-forward (LQF) framework, which converts the C-RAN into an equivalent finite-field multipleinput-multiple-output (FF-MIMO) channel. In particular, under this equivalent FF single-input-multiple-output channel, an optimal receive combining method is presented by using a simple repetition code. In addition, using linear block codes, a low-complexity detection method is presented for the equivalent FF-MIMO channel. Finally, by simulations, it is demonstrated that the proposed detection method combined with the LQF framework provides high achievable sum rates for uplink C-RANs especially when a lot of low-cost ATs are deployed.
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