An analytic model for Throughput Optimal Distributed Coordination Function (TO-DCF)

Research output: Contribution to journalArticle

Standard

Harvard

APA

CBE

MLA

Vancouver

Author

RIS

TY - JOUR

T1 - An analytic model for Throughput Optimal Distributed Coordination Function (TO-DCF)

AU - Fitzgerald, Emma

AU - Körner, Ulf

AU - Landfeldt, Björn

PY - 2017/10

Y1 - 2017/10

N2 - TO-DCF, a new backoff scheme for 802.11, has the potential to significantly increase throughput in dense wireless LANs while also opportunistically favouring nodes with heavier traffic loads and/or better channel conditions. In this paper we present an analytical model to investigate the behaviour and performance of the TO-DCF protocol with regards to operating parameters such as the number of nodes, the contention window size and the backoff countdown probabilities. We then compare numerical results from an implementation of our model with simulations. Our model shows a high level of accuracy, even when the model assumptions are relaxed, and provides guidance for network operators to correctly configure the weight functions for nodes running TO-DCF given the network’s operating conditions.

AB - TO-DCF, a new backoff scheme for 802.11, has the potential to significantly increase throughput in dense wireless LANs while also opportunistically favouring nodes with heavier traffic loads and/or better channel conditions. In this paper we present an analytical model to investigate the behaviour and performance of the TO-DCF protocol with regards to operating parameters such as the number of nodes, the contention window size and the backoff countdown probabilities. We then compare numerical results from an implementation of our model with simulations. Our model shows a high level of accuracy, even when the model assumptions are relaxed, and provides guidance for network operators to correctly configure the weight functions for nodes running TO-DCF given the network’s operating conditions.

KW - 802.11

KW - CSMA

KW - MAC

KW - Wireless LAN

UR - http://www.scopus.com/inward/record.url?scp=85011591297&partnerID=8YFLogxK

U2 - 10.1007/s11235-017-0275-6

DO - 10.1007/s11235-017-0275-6

M3 - Article

VL - 66

SP - 197

EP - 215

JO - Telecommunication Systems

JF - Telecommunication Systems

SN - 1018-4864

IS - 2

ER -