On the Impact of Multi-User Traffic Dynamics on Low Latency Communications

Guillermo Andrés Pocovi Gerardino; Klaus I. Pedersen; Beatriz Soret Alvarez; Mads Lauridsen; Preben Elgaard Mogensen

doi:10.1109/ISWCS.2016.7600901

On the Impact of Multi-User Traffic Dynamics on Low Latency Communications

Guillermo Andrés Pocovi Gerardino, Klaus I. Pedersen, Beatriz Soret Alvarez, Mads Lauridsen, Preben Elgaard Mogensen

Research output: Contribution to book/anthology/report/conference proceeding › Article in proceeding › Research › peer-review

45 Citations (Scopus)

622 Downloads (Pure)

Abstract

In this paper we study the downlink latency performance in a multi-user cellular network. We use a flexible 5G radio frame structure, where the TTI size is configurable on a per-user basis according to their specific service requirements. Results show that at low system loads using a short TTI (e.g. 0.25 ms) is an attractive solution to achieve low latency communications (LLC). The main benefits come from the low transmission delay required to transmit the payloads. However, as the load increases, longer TTI configurations with lower relative control overhead (and therefore higher spectral efficiency) provide better performance as these better cope with the non-negligible queuing delay. The presented results allow to conclude that support for scheduling with different TTI sizes is important for LLC and should be included in the future 5G.

Original language	English
Title of host publication	Wireless Communication Systems (ISWCS), 2016 International Symposium on
Publisher	IEEE (Institute of Electrical and Electronics Engineers)
Publication date	2016
Pages	204-208
ISBN (Electronic)	978-1-5090-2061-4
DOIs	https://doi.org/10.1109/ISWCS.2016.7600901
Publication status	Published - 2016
Event	The 13th International Symposium on Wireless Communication Systems - Poznań, Poland Duration: 20 Sept 2016 → 23 Sept 2016 Conference number: 13 http://iswcs2016.org/

Conference

Conference	The 13th International Symposium on Wireless Communication Systems
Number	13
Country/Territory	Poland
City	Poznań
Period	20/09/2016 → 23/09/2016
Internet address	http://iswcs2016.org/

Keywords

Low latency
Queuing delay
5G
Flexible frame structure
Scheduling

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10.1109/ISWCS.2016.7600901

QueuingPaper_FinalAccepted author manuscript, 404 KB

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@inproceedings{ed391a5910aa40ed8c0fbc772a555c1a,

title = "On the Impact of Multi-User Traffic Dynamics on Low Latency Communications",

abstract = "In this paper we study the downlink latency performance in a multi-user cellular network. We use a flexible 5G radio frame structure, where the TTI size is configurable on a per-user basis according to their specific service requirements. Results show that at low system loads using a short TTI (e.g. 0.25 ms) is an attractive solution to achieve low latency communications (LLC). The main benefits come from the low transmission delay required to transmit the payloads. However, as the load increases, longer TTI configurations with lower relative control overhead (and therefore higher spectral efficiency) provide better performance as these better cope with the non-negligible queuing delay. The presented results allow to conclude that support for scheduling with different TTI sizes is important for LLC and should be included in the future 5G.",

keywords = "Low latency, Queuing delay, 5G, Flexible frame structure, Scheduling",

author = "Gerardino, {Guillermo Andr{\'e}s Pocovi} and Pedersen, {Klaus I.} and Alvarez, {Beatriz Soret} and Mads Lauridsen and Mogensen, {Preben Elgaard}",

year = "2016",

doi = "10.1109/ISWCS.2016.7600901",

language = "English",

pages = "204--208",

booktitle = "Wireless Communication Systems (ISWCS), 2016 International Symposium on",

publisher = "IEEE (Institute of Electrical and Electronics Engineers)",

address = "United States",

note = "The 13th International Symposium on Wireless Communication Systems, ISWCS 16 ; Conference date: 20-09-2016 Through 23-09-2016",

url = "http://iswcs2016.org/",

}

Gerardino, GAP, Pedersen, KI , Alvarez, BS, Lauridsen, M & Mogensen, PE 2016, On the Impact of Multi-User Traffic Dynamics on Low Latency Communications. in Wireless Communication Systems (ISWCS), 2016 International Symposium on. IEEE (Institute of Electrical and Electronics Engineers), pp. 204-208, The 13th International Symposium on Wireless Communication Systems, Poznań, Poland, 20/09/2016. https://doi.org/10.1109/ISWCS.2016.7600901

On the Impact of Multi-User Traffic Dynamics on Low Latency Communications. / Gerardino, Guillermo Andrés Pocovi; Pedersen, Klaus I.; Alvarez, Beatriz Soret et al.
Wireless Communication Systems (ISWCS), 2016 International Symposium on. IEEE (Institute of Electrical and Electronics Engineers), 2016. p. 204-208.

Research output: Contribution to book/anthology/report/conference proceeding › Article in proceeding › Research › peer-review

TY - GEN

T1 - On the Impact of Multi-User Traffic Dynamics on Low Latency Communications

AU - Gerardino, Guillermo Andrés Pocovi

AU - Pedersen, Klaus I.

AU - Alvarez, Beatriz Soret

AU - Lauridsen, Mads

AU - Mogensen, Preben Elgaard

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AB - In this paper we study the downlink latency performance in a multi-user cellular network. We use a flexible 5G radio frame structure, where the TTI size is configurable on a per-user basis according to their specific service requirements. Results show that at low system loads using a short TTI (e.g. 0.25 ms) is an attractive solution to achieve low latency communications (LLC). The main benefits come from the low transmission delay required to transmit the payloads. However, as the load increases, longer TTI configurations with lower relative control overhead (and therefore higher spectral efficiency) provide better performance as these better cope with the non-negligible queuing delay. The presented results allow to conclude that support for scheduling with different TTI sizes is important for LLC and should be included in the future 5G.

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KW - Queuing delay

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KW - Flexible frame structure

KW - Scheduling

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PB - IEEE (Institute of Electrical and Electronics Engineers)

T2 - The 13th International Symposium on Wireless Communication Systems

Y2 - 20 September 2016 through 23 September 2016

ER -

On the Impact of Multi-User Traffic Dynamics on Low Latency Communications

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Keywords

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