Abstract
This paper introduces a preemptive rank offloading scheduling framework for joint ultra-reliable low-latency communications (URLLC) and enhanced mobile broadband (eMBB) traffic in 5G new radio (NR). Proposed scheduler dynamically adapts the overall system optimization among the network-centric ergodic capacity and the user-centric URLLC one-way latency, based on the instantaneous traffic and radio resources availability. The spatial degrees of freedom, offered by the transmit antenna array, are fully exploited to maximize the overall spectral efficiency. However, when URLLC traffic buffering is foreseen, proposed scheduler immediately enforces scheduling pending URLLC payloads through preemption-aware subspace projection. Compared to the state-of-the-art schedulers from industry and academia, proposed scheduler framework shows significant scheduling flexibility in terms of the overall ergodic capacity and URLLC latency performance. The presented results therefore offer valuable insights of how to most efficiently multiplex joint URLLC-eMBB traffic over the 5G NR spectrum.
Original language | English |
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Title of host publication | 2019 IEEE 89th Vehicular Technology Conference: VTC2019-Spring |
Number of pages | 6 |
Publisher | IEEE (Institute of Electrical and Electronics Engineers) |
Publication date | 27 Jun 2019 |
Article number | 8746364 |
ISBN (Print) | 978-1-7281-1218-3 |
ISBN (Electronic) | 978-1-7281-1217-6 |
DOIs | |
Publication status | Published - 27 Jun 2019 |
Event | 2019 IEEE 89th Vehicular Technology Conference (VTC2019-Spring) - Kuala Lumpur, Malaysia Duration: 28 Apr 2019 → 1 May 2019 http://www.ieeevtc.org/vtc2019spring/ |
Conference
Conference | 2019 IEEE 89th Vehicular Technology Conference (VTC2019-Spring) |
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Country/Territory | Malaysia |
City | Kuala Lumpur |
Period | 28/04/2019 → 01/05/2019 |
Internet address |
Series | I E E E V T S Vehicular Technology Conference. Proceedings |
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ISSN | 1090-3038 |
Keywords
- URLLC
- eMBB
- 5G
- MU-MIMO
- New radio
- Preemptive
- Scheduling