The failure of CSMA in emerging wireless network scenarios

Emma Fitzgerald; Björn Landfeldt

doi:10.1109/WD.2014.7020830

The failure of CSMA in emerging wireless network scenarios

Forskningsoutput: Kapitel i bok/rapport/Conference proceeding › Konferenspaper i proceeding › Peer review

Sammanfattning

The current family of 802.11 protocols are based on the Carrier Sense Multiple Access (CSMA) mechanism which is a simple and robust means of sharing a channel. However, two current trends in wireless networks point towards a situation where CSMA fails to perform better than pure random access solutions such as ALOHA. The first trend is the ever increasing raw data rate in each generation of 802.11 which is set to continue with the current 802.11ax standardisation. The second is the move towards smaller frames as end users increasingly use mobile devices instead of desktop computers. We show that as the ratio of propagation delay to packet transmission time increases, the performance of CSMA degrades correspondingly, to the point where ALOHA outperforms CSMA.

Originalspråk	engelska
Titel på värdpublikation	[Host publication title missing]
Sidor	1-4
Antal sidor	4
DOI	https://doi.org/10.1109/WD.2014.7020830
Status	Published - 2014
Evenemang	Wireless Days (WD), 2014 IFIP - Rio de Janeiro, Brasilien Varaktighet: 2014 nov. 12 → …

Konferens

Konferens	Wireless Days (WD), 2014 IFIP
Land/Territorium	Brasilien
Ort	Rio de Janeiro
Period	2014/11/12 → …

Ämnesklassifikation (UKÄ)

Elektroteknik och elektronik

Tillgång till dokument

10.1109/WD.2014.7020830

1 Avslutade
1 Ej startade

ELLIIT LU P01: WP2 Networking solutions
Landfeldt, B. (PI), Fitzgerald, E. (Forskare), Moradi, F. (Forskare), Karaca, M. (Forskare), Bastani, S. (Forskare), Safavi, M. (Forskare), Pioro, M. (Forskare) & Nyberg, C. (Forskare)
Projekt: Forskning
MESH-WISE: MESH-WISE - Self-organising MESH Networking with Heterogeneous Wireless Access
Landfeldt, B. (PI), Fitzgerald, E. (Forskare), Karaca, M. (Forskare) & Moradi, F. (Forskare)
European Commission - FP7
2013/03/01 → 2017/02/28
Projekt: Övrigt

Citera det här

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title = "The failure of CSMA in emerging wireless network scenarios",

abstract = "The current family of 802.11 protocols are based on the Carrier Sense Multiple Access (CSMA) mechanism which is a simple and robust means of sharing a channel. However, two current trends in wireless networks point towards a situation where CSMA fails to perform better than pure random access solutions such as ALOHA. The first trend is the ever increasing raw data rate in each generation of 802.11 which is set to continue with the current 802.11ax standardisation. The second is the move towards smaller frames as end users increasingly use mobile devices instead of desktop computers. We show that as the ratio of propagation delay to packet transmission time increases, the performance of CSMA degrades correspondingly, to the point where ALOHA outperforms CSMA.",

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year = "2014",

doi = "10.1109/WD.2014.7020830",

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AB - The current family of 802.11 protocols are based on the Carrier Sense Multiple Access (CSMA) mechanism which is a simple and robust means of sharing a channel. However, two current trends in wireless networks point towards a situation where CSMA fails to perform better than pure random access solutions such as ALOHA. The first trend is the ever increasing raw data rate in each generation of 802.11 which is set to continue with the current 802.11ax standardisation. The second is the move towards smaller frames as end users increasingly use mobile devices instead of desktop computers. We show that as the ratio of propagation delay to packet transmission time increases, the performance of CSMA degrades correspondingly, to the point where ALOHA outperforms CSMA.

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U2 - 10.1109/WD.2014.7020830

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Y2 - 12 November 2014

ER -

The failure of CSMA in emerging wireless network scenarios

Sammanfattning

Konferens

Ämnesklassifikation (UKÄ)

Tillgång till dokument

Fingeravtryck

Projekt

ELLIIT LU P01: WP2 Networking solutions

MESH-WISE: MESH-WISE - Self-organising MESH Networking with Heterogeneous Wireless Access

Citera det här