Next Article in Journal
The Relationship between the US Economy’s Information Processing and Absorption Ratios: Systematic vs Systemic Risk
Next Article in Special Issue
Gaussian Multiple Access Channels with One-Bit Quantizer at the Receiver ,
Previous Article in Journal
Causal Shannon–Fisher Characterization of Motor/Imagery Movements in EEG
Previous Article in Special Issue
Symmetry, Outer Bounds, and Code Constructions: A Computer-Aided Investigation on the Fundamental Limits of Caching
Article Menu
Issue 9 (September) cover image

Export Article

Open AccessArticle
Entropy 2018, 20(9), 661;

Non-Orthogonal eMBB-URLLC Radio Access for Cloud Radio Access Networks with Analog Fronthauling

Dipartimento di Elettronica, Informazione e Bioingegneria (DEIB), Politecnico di Milano, 20133 Milano, Italy
Centre for Telecommunications Research (CTR), Department of Informatics, King’s College London, London WC2B 4BG, UK
Author to whom correspondence should be addressed.
Received: 17 July 2018 / Revised: 20 August 2018 / Accepted: 31 August 2018 / Published: 2 September 2018
(This article belongs to the Special Issue Information Theory for Data Communications and Processing)
Full-Text   |   PDF [4528 KB, uploaded 6 September 2018]   |  


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. View Full-Text
Keywords: network slicing; RoC; URLLC; eMBB; C-RAN network slicing; RoC; URLLC; eMBB; C-RAN

Figure 1

This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited (CC BY 4.0).

Share & Cite This Article

MDPI and ACS Style

Matera, A.; Kassab, R.; Simeone, O.; Spagnolini, U. Non-Orthogonal eMBB-URLLC Radio Access for Cloud Radio Access Networks with Analog Fronthauling. Entropy 2018, 20, 661.

Show more citation formats Show less citations formats

Note that from the first issue of 2016, MDPI journals use article numbers instead of page numbers. See further details here.

Related Articles

Article Metrics

Article Access Statistics



[Return to top]
Entropy EISSN 1099-4300 Published by MDPI AG, Basel, Switzerland RSS E-Mail Table of Contents Alert
Back to Top