Non-Orthogonal eMBB-URLLC Radio Access for Cloud Radio Access Networks with Analog Fronthauling
This paper considers the coexistence of Ultra Reliable Low Latency Communications (URLLC) and enhanced Mobile BroadBand (eMBB) services in the uplink of Cloud Radio Access Network (C-RAN) architecture based on the relaying of radio signals over analog fronthaul links. While Orthogonal Multiple Acces...
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| Format: | Article |
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MDPI AG
2018-09-01
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| Series: | Entropy |
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| Online Access: | http://www.mdpi.com/1099-4300/20/9/661 |
| _version_ | 1798005117888233472 |
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| author | Andrea Matera Rahif Kassab Osvaldo Simeone Umberto Spagnolini |
| author_facet | Andrea Matera Rahif Kassab Osvaldo Simeone Umberto Spagnolini |
| author_sort | Andrea Matera |
| collection | DOAJ |
| description | This paper considers the coexistence of Ultra Reliable Low Latency Communications (URLLC) and enhanced Mobile BroadBand (eMBB) services in the uplink of Cloud Radio Access Network (C-RAN) architecture based on the relaying of radio signals over analog fronthaul links. While Orthogonal Multiple Access (OMA) to the radio resources enables the isolation and the separate design of different 5G services, Non-Orthogonal Multiple Access (NOMA) can enhance the system performance by sharing wireless and fronthaul resources. This paper provides an information-theoretic perspective in the performance of URLLC and eMBB traffic under both OMA and NOMA. The analysis focuses on standard cellular models with additive Gaussian noise links and a finite inter-cell interference span, and it accounts for different decoding strategies such as puncturing, Treating Interference as Noise (TIN) and Successive Interference Cancellation (SIC). Numerical results demonstrate that, for the considered analog fronthauling C-RAN architecture, NOMA achieves higher eMBB rates with respect to OMA, while guaranteeing reliable low-rate URLLC communication with minimal access latency. Moreover, NOMA under SIC is seen to achieve the best performance, while, unlike the case with digital capacity-constrained fronthaul links, TIN always outperforms puncturing. |
| first_indexed | 2024-04-11T12:35:12Z |
| format | Article |
| id | doaj.art-1a6bba0794cc484faec8de949bf17dcb |
| institution | Directory Open Access Journal |
| issn | 1099-4300 |
| language | English |
| last_indexed | 2024-04-11T12:35:12Z |
| publishDate | 2018-09-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Entropy |
| spelling | doaj.art-1a6bba0794cc484faec8de949bf17dcb2022-12-22T04:23:39ZengMDPI AGEntropy1099-43002018-09-0120966110.3390/e20090661e20090661Non-Orthogonal eMBB-URLLC Radio Access for Cloud Radio Access Networks with Analog FronthaulingAndrea Matera0Rahif Kassab1Osvaldo Simeone2Umberto Spagnolini3Dipartimento di Elettronica, Informazione e Bioingegneria (DEIB), Politecnico di Milano, 20133 Milano, ItalyCentre for Telecommunications Research (CTR), Department of Informatics, King’s College London, London WC2B 4BG, UKCentre for Telecommunications Research (CTR), Department of Informatics, King’s College London, London WC2B 4BG, UKDipartimento di Elettronica, Informazione e Bioingegneria (DEIB), Politecnico di Milano, 20133 Milano, ItalyThis paper considers the coexistence of Ultra Reliable Low Latency Communications (URLLC) and enhanced Mobile BroadBand (eMBB) services in the uplink of Cloud Radio Access Network (C-RAN) architecture based on the relaying of radio signals over analog fronthaul links. While Orthogonal Multiple Access (OMA) to the radio resources enables the isolation and the separate design of different 5G services, Non-Orthogonal Multiple Access (NOMA) can enhance the system performance by sharing wireless and fronthaul resources. This paper provides an information-theoretic perspective in the performance of URLLC and eMBB traffic under both OMA and NOMA. The analysis focuses on standard cellular models with additive Gaussian noise links and a finite inter-cell interference span, and it accounts for different decoding strategies such as puncturing, Treating Interference as Noise (TIN) and Successive Interference Cancellation (SIC). Numerical results demonstrate that, for the considered analog fronthauling C-RAN architecture, NOMA achieves higher eMBB rates with respect to OMA, while guaranteeing reliable low-rate URLLC communication with minimal access latency. Moreover, NOMA under SIC is seen to achieve the best performance, while, unlike the case with digital capacity-constrained fronthaul links, TIN always outperforms puncturing.http://www.mdpi.com/1099-4300/20/9/661network slicingRoCURLLCeMBBC-RAN |
| spellingShingle | Andrea Matera Rahif Kassab Osvaldo Simeone Umberto Spagnolini Non-Orthogonal eMBB-URLLC Radio Access for Cloud Radio Access Networks with Analog Fronthauling Entropy network slicing RoC URLLC eMBB C-RAN |
| title | Non-Orthogonal eMBB-URLLC Radio Access for Cloud Radio Access Networks with Analog Fronthauling |
| title_full | Non-Orthogonal eMBB-URLLC Radio Access for Cloud Radio Access Networks with Analog Fronthauling |
| title_fullStr | Non-Orthogonal eMBB-URLLC Radio Access for Cloud Radio Access Networks with Analog Fronthauling |
| title_full_unstemmed | Non-Orthogonal eMBB-URLLC Radio Access for Cloud Radio Access Networks with Analog Fronthauling |
| title_short | Non-Orthogonal eMBB-URLLC Radio Access for Cloud Radio Access Networks with Analog Fronthauling |
| title_sort | non orthogonal embb urllc radio access for cloud radio access networks with analog fronthauling |
| topic | network slicing RoC URLLC eMBB C-RAN |
| url | http://www.mdpi.com/1099-4300/20/9/661 |
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