Name
Abstract | ||
|---|---|---|
In this paper, we study the performance of ultrareliable low-latency communication (URLLC) for cellular standalone systems in unlicensed bands. Our focus is on the 5 GHz band, adopting a system model in coherence with the MulteFire standard, which essentially is a variant of LTE (Long Term Evolution) for unlicensed band operation. We show that especially the mandatory Listen Before Talk (LBT) procedure suppose a challenge for achieving low latency communication. Our theoretical analysis indicated that the impact of the LBT procedure prior to downlink transmissions can be significant, taking values of 3-25 ms for the considered offered load levels. Furthermore, our advanced dynamic system-level simulations show that the time spent performing LBT often accounts for 18%-42% of the packet latency budget, depending on the considered outage level and offered traffic. Therefore LBT represents a major challenge for achieving URLLC-alike performance in unlicensed spectrum. |
Year | DOI | Venue |
|---|---|---|
2018 | 10.1109/GLOCOM.2018.8648144 | IEEE Global Communications Conference |
Keywords | Field | DocType |
latency,reliability,listen before talk,LBT,URLLC,unlicensed spectrum,MulteFire | Spectrum management,Latency (engineering),Computer science,Network packet,Computer network,Offered load,Real-time computing,Coherence (physics),Latency (engineering),System model,Telecommunications link | Conference |
ISSN | Citations | PageRank |
2334-0983 | 0 | 0.34 |
References | Authors | |
0 | 4 | |
Name | Order | Citations | PageRank |
|---|---|---|---|
| Roberto Maldonado Cuevas | 1 | 0 | 1.69 |
| Claudio Rosa | 2 | 423 | 47.25 |
| Frank Frederiksen | 3 | 573 | 64.27 |
| Klaus I. Pedersen | 4 | 1732 | 194.03 |