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Authors: Jiankun Hu and Konrad Eriksson

Affiliation: School of Computer Science & Information Technology, RMIT University, Australia

Keyword(s): TCP protocol, MAC protocol, wireless networks.

Abstract: The famous binary backoff algorithm in IEEE 802.11 MAC layer can forget the contention level between each successfully transmitted data frame and hence suffers significant performance degradation when the contention level is high. In IEEE 802.11 standard, a distributed contention control (DCC) algorithm is proposed to address this problem by observing how many of slots in the last backoff period were busy, i.e. slot utilization. The introduction of slot utilization can provide good estimation of the most recent congestion dynamics, i.e. transient fluctuations of the traffic. However, it is inaccurate to estimate the overall traffic pattern as one backoff period is too short to obtain accurate stationary statistics. In this paper, a new DCC algorithm is proposed that can combine transient and stationary characteristics, which provides better estimation of congestion level of the medium. Extensive simulation by using NS-2 simulator has shown that our scheme has better throughput and lo w collisions compared with original binary backoff MAC protocol and slot utilization algorithm (Nononi, Conti and Donatiello, 1998). (More)

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Paper citation in several formats:
Hu, J. and Eriksson, K. (2004). A NEW DISTRIBUTED CONTENTION CONTROL PROTOCOL FOR THE IEEE 802.11 MAC LAYER - Project of ATcrc Application Programms. In Proceedings of the First International Conference on E-Business and Telecommunication Networks (ICETE 2004) - Volume 1: TCPMAC; ISBN 972-8865-15-5; ISSN 2184-3236, SciTePress, pages 393-401. DOI: 10.5220/0001402903930401

@conference{tcpmac04,
author={Jiankun Hu. and Konrad Eriksson.},
title={A NEW DISTRIBUTED CONTENTION CONTROL PROTOCOL FOR THE IEEE 802.11 MAC LAYER - Project of ATcrc Application Programms},
booktitle={Proceedings of the First International Conference on E-Business and Telecommunication Networks (ICETE 2004) - Volume 1: TCPMAC},
year={2004},
pages={393-401},
publisher={SciTePress},
organization={INSTICC},
doi={10.5220/0001402903930401},
isbn={972-8865-15-5},
issn={2184-3236},
}

TY - CONF

JO - Proceedings of the First International Conference on E-Business and Telecommunication Networks (ICETE 2004) - Volume 1: TCPMAC
TI - A NEW DISTRIBUTED CONTENTION CONTROL PROTOCOL FOR THE IEEE 802.11 MAC LAYER - Project of ATcrc Application Programms
SN - 972-8865-15-5
IS - 2184-3236
AU - Hu, J.
AU - Eriksson, K.
PY - 2004
SP - 393
EP - 401
DO - 10.5220/0001402903930401
PB - SciTePress

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