Coexistence of URLLC and eMBB Services in the C-RAN Uplink: An Information-Theoretic Study

Rahif Kassab; Osvaldo Simeone; Petar Popovski

doi:10.1109/GLOCOM.2018.8647460

Coexistence of URLLC and eMBB Services in the C-RAN Uplink: An Information-Theoretic Study

Rahif Kassab, Osvaldo Simeone, Petar Popovski

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution

20 Scopus citations

Abstract

The performance of orthogonal and non-orthogonal multiple access is studied for the multiplexing of enhanced Mobile BroadBand (eMBB) and Ultra-Reliable Low-Latency Communications (URLLC) users in the uplink of a multi-cell Cloud Radio Access Network (C-RAN) architecture. While eMBB users can operate over long codewords spread in time and frequency, URLLC users' transmissions are random and localized in time due to their low-latency requirements. These requirements also call for decoding of URLLC packets to be carried out at the edge nodes (ENs), whereas eMBB traffic can leverage the interference management capabilities of centralized decoding at the cloud. Using information-theoretic arguments, the performance tradeoffs between eMBB and URLLC traffic types are investigated in terms of rate for the former, and rate, access latency, and reliability for the latter. The analysis includes non-orthogonal multiple access (NOMA) with different decoding architectures, such as puncturing and successive interference cancellation (SIC). The main results bring insight on effective design choices as a function of inter-cell interference, signal-to-noise ratio levels, and fronthaul capacity constraints.

Original language	English (US)
Title of host publication	2018 IEEE Global Communications Conference, GLOBECOM 2018 - Proceedings
Publisher	Institute of Electrical and Electronics Engineers Inc.
ISBN (Electronic)	9781538647271
DOIs	https://doi.org/10.1109/GLOCOM.2018.8647460
State	Published - 2018
Externally published	Yes
Event	2018 IEEE Global Communications Conference, GLOBECOM 2018 - Abu Dhabi, United Arab Emirates Duration: Dec 9 2018 → Dec 13 2018

Publication series

Name	2018 IEEE Global Communications Conference, GLOBECOM 2018 - Proceedings

Conference

Conference	2018 IEEE Global Communications Conference, GLOBECOM 2018
Country	United Arab Emirates
City	Abu Dhabi
Period	12/9/18 → 12/13/18

All Science Journal Classification (ASJC) codes

Information Systems and Management
Renewable Energy, Sustainability and the Environment
Safety, Risk, Reliability and Quality
Signal Processing
Modeling and Simulation
Instrumentation
Computer Networks and Communications

Keywords

5G
C-RAN
Information Theory
URLLC
eMBB

Access to Document

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Kassab, R., Simeone, O., & Popovski, P. (2018). Coexistence of URLLC and eMBB Services in the C-RAN Uplink: An Information-Theoretic Study. In 2018 IEEE Global Communications Conference, GLOBECOM 2018 - Proceedings [8647460] (2018 IEEE Global Communications Conference, GLOBECOM 2018 - Proceedings). Institute of Electrical and Electronics Engineers Inc.. https://doi.org/10.1109/GLOCOM.2018.8647460

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abstract = "The performance of orthogonal and non-orthogonal multiple access is studied for the multiplexing of enhanced Mobile BroadBand (eMBB) and Ultra-Reliable Low-Latency Communications (URLLC) users in the uplink of a multi-cell Cloud Radio Access Network (C-RAN) architecture. While eMBB users can operate over long codewords spread in time and frequency, URLLC users' transmissions are random and localized in time due to their low-latency requirements. These requirements also call for decoding of URLLC packets to be carried out at the edge nodes (ENs), whereas eMBB traffic can leverage the interference management capabilities of centralized decoding at the cloud. Using information-theoretic arguments, the performance tradeoffs between eMBB and URLLC traffic types are investigated in terms of rate for the former, and rate, access latency, and reliability for the latter. The analysis includes non-orthogonal multiple access (NOMA) with different decoding architectures, such as puncturing and successive interference cancellation (SIC). The main results bring insight on effective design choices as a function of inter-cell interference, signal-to-noise ratio levels, and fronthaul capacity constraints.",

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Kassab, R, Simeone, O & Popovski, P 2018, Coexistence of URLLC and eMBB Services in the C-RAN Uplink: An Information-Theoretic Study. in 2018 IEEE Global Communications Conference, GLOBECOM 2018 - Proceedings., 8647460, 2018 IEEE Global Communications Conference, GLOBECOM 2018 - Proceedings, Institute of Electrical and Electronics Engineers Inc., 2018 IEEE Global Communications Conference, GLOBECOM 2018, Abu Dhabi, United Arab Emirates, 12/9/18. https://doi.org/10.1109/GLOCOM.2018.8647460

Coexistence of URLLC and eMBB Services in the C-RAN Uplink : An Information-Theoretic Study. / Kassab, Rahif; Simeone, Osvaldo; Popovski, Petar.

2018 IEEE Global Communications Conference, GLOBECOM 2018 - Proceedings. Institute of Electrical and Electronics Engineers Inc., 2018. 8647460 (2018 IEEE Global Communications Conference, GLOBECOM 2018 - Proceedings).

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution

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AB - The performance of orthogonal and non-orthogonal multiple access is studied for the multiplexing of enhanced Mobile BroadBand (eMBB) and Ultra-Reliable Low-Latency Communications (URLLC) users in the uplink of a multi-cell Cloud Radio Access Network (C-RAN) architecture. While eMBB users can operate over long codewords spread in time and frequency, URLLC users' transmissions are random and localized in time due to their low-latency requirements. These requirements also call for decoding of URLLC packets to be carried out at the edge nodes (ENs), whereas eMBB traffic can leverage the interference management capabilities of centralized decoding at the cloud. Using information-theoretic arguments, the performance tradeoffs between eMBB and URLLC traffic types are investigated in terms of rate for the former, and rate, access latency, and reliability for the latter. The analysis includes non-orthogonal multiple access (NOMA) with different decoding architectures, such as puncturing and successive interference cancellation (SIC). The main results bring insight on effective design choices as a function of inter-cell interference, signal-to-noise ratio levels, and fronthaul capacity constraints.

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Kassab R, Simeone O, Popovski P. Coexistence of URLLC and eMBB Services in the C-RAN Uplink: An Information-Theoretic Study. In 2018 IEEE Global Communications Conference, GLOBECOM 2018 - Proceedings. Institute of Electrical and Electronics Engineers Inc. 2018. 8647460. (2018 IEEE Global Communications Conference, GLOBECOM 2018 - Proceedings). https://doi.org/10.1109/GLOCOM.2018.8647460