Home > Research > Publications & Outputs > Low Latency Driven Effective Capacity Analysis ...

Electronic data

Links

Text available via DOI:

View graph of relations

Low Latency Driven Effective Capacity Analysis for Non-Orthogonal and Orthogonal Spectrum Access

Research output: Contribution in Book/Report/Proceedings - With ISBN/ISSNConference contribution/Paper

Published

Standard

Low Latency Driven Effective Capacity Analysis for Non-Orthogonal and Orthogonal Spectrum Access. / Yu, W.; Musavian, L.; Quddus, A.U.; Ni, Q.; Xiao, P.

2018 IEEE Globecom Workshops (GC Wkshps). IEEE, 2018.

Research output: Contribution in Book/Report/Proceedings - With ISBN/ISSNConference contribution/Paper

Harvard

APA

Vancouver

Author

Yu, W. ; Musavian, L. ; Quddus, A.U. ; Ni, Q. ; Xiao, P. / Low Latency Driven Effective Capacity Analysis for Non-Orthogonal and Orthogonal Spectrum Access. 2018 IEEE Globecom Workshops (GC Wkshps). IEEE, 2018.

Bibtex

@inproceedings{8c1670d95bf14869b49968e6bcff5fa0,
title = "Low Latency Driven Effective Capacity Analysis for Non-Orthogonal and Orthogonal Spectrum Access",
abstract = "In this paper, we theoretically investigate the performance of non-orthogonal and orthogonal spectrum access protocols (more generically known as NOMA) in supporting ultra-reliable low-latency communications (URLLC). The theory of effective capacity (EC) is adopted as a suitable delay-guaranteed capacity metric to flexibly represent the users' delay requirements. Then, the total EC difference between a downlink user-paired NOMA network and a downlink orthogonal multiple access (OMA) network is analytically studied. Exact closed-form expressions and the approximated closed-forms at high signal-to-noise ratios (SNRs) are derived for both networks and validated through simulation results. It is shown that for a user pair in which two users with the most distinct channel conditions are paired together, NOMA still achieves higher total EC (compared to OMA) in high SNR regime as the user group size becomes larger, although the EC performance of both NOMA and OMA reduces with the increase in group size. It is expected that the derived analytical framework can serve as a useful reference and practical guideline for designing favourable orthogonal and nonorthogonal spectrum access schemes in supporting low-latency services.",
keywords = "delay violation probability, effective capacity, exact closed-form expressions, NOMA, URLLC, Spectroscopy, Closed-form expression, Delay violation, Effective capacity, Signal to noise ratio",
author = "W. Yu and L. Musavian and A.U. Quddus and Q. Ni and P. Xiao",
year = "2018",
month = dec
day = "13",
doi = "10.1109/GLOCOMW.2018.8644490",
language = "English",
booktitle = "2018 IEEE Globecom Workshops (GC Wkshps)",
publisher = "IEEE",

}

RIS

TY - GEN

T1 - Low Latency Driven Effective Capacity Analysis for Non-Orthogonal and Orthogonal Spectrum Access

AU - Yu, W.

AU - Musavian, L.

AU - Quddus, A.U.

AU - Ni, Q.

AU - Xiao, P.

PY - 2018/12/13

Y1 - 2018/12/13

N2 - In this paper, we theoretically investigate the performance of non-orthogonal and orthogonal spectrum access protocols (more generically known as NOMA) in supporting ultra-reliable low-latency communications (URLLC). The theory of effective capacity (EC) is adopted as a suitable delay-guaranteed capacity metric to flexibly represent the users' delay requirements. Then, the total EC difference between a downlink user-paired NOMA network and a downlink orthogonal multiple access (OMA) network is analytically studied. Exact closed-form expressions and the approximated closed-forms at high signal-to-noise ratios (SNRs) are derived for both networks and validated through simulation results. It is shown that for a user pair in which two users with the most distinct channel conditions are paired together, NOMA still achieves higher total EC (compared to OMA) in high SNR regime as the user group size becomes larger, although the EC performance of both NOMA and OMA reduces with the increase in group size. It is expected that the derived analytical framework can serve as a useful reference and practical guideline for designing favourable orthogonal and nonorthogonal spectrum access schemes in supporting low-latency services.

AB - In this paper, we theoretically investigate the performance of non-orthogonal and orthogonal spectrum access protocols (more generically known as NOMA) in supporting ultra-reliable low-latency communications (URLLC). The theory of effective capacity (EC) is adopted as a suitable delay-guaranteed capacity metric to flexibly represent the users' delay requirements. Then, the total EC difference between a downlink user-paired NOMA network and a downlink orthogonal multiple access (OMA) network is analytically studied. Exact closed-form expressions and the approximated closed-forms at high signal-to-noise ratios (SNRs) are derived for both networks and validated through simulation results. It is shown that for a user pair in which two users with the most distinct channel conditions are paired together, NOMA still achieves higher total EC (compared to OMA) in high SNR regime as the user group size becomes larger, although the EC performance of both NOMA and OMA reduces with the increase in group size. It is expected that the derived analytical framework can serve as a useful reference and practical guideline for designing favourable orthogonal and nonorthogonal spectrum access schemes in supporting low-latency services.

KW - delay violation probability

KW - effective capacity

KW - exact closed-form expressions

KW - NOMA

KW - URLLC

KW - Spectroscopy

KW - Closed-form expression

KW - Delay violation

KW - Effective capacity

KW - Signal to noise ratio

U2 - 10.1109/GLOCOMW.2018.8644490

DO - 10.1109/GLOCOMW.2018.8644490

M3 - Conference contribution/Paper

BT - 2018 IEEE Globecom Workshops (GC Wkshps)

PB - IEEE

ER -