Achieving the Maximal Throughput Via a Collision-aware DCF

DOI

10.2991/iccasm.2012.244How to use a DOI?

Keywords

IEEE 802.11, CSMA/CA, DCF, Collision Aware

Abstract

DCF adopts a binary backoff procedure in order to avoid the further collision. In a real wireless channel, both a channel bit error and a collision can cause a data frame loss. However, DCF always assumes that a data frame loss is due to the collision. In fact, a channel bit error should not cause the backoff window double. In this paper, we propose a Collision Aware (CA) DCF to differentiate between channel error and collision. The CA-DCF introduces a CA frame which is so small size that it is loss only due to collision. Through theoretical analysis, an optimal backoff window is deduced and the CA-DCF adopts the fixed optimal window as the backoff window. NS-2 simulation results show that the CA-DCF is an effective scheme.

Copyright

© 2012, the Authors. Published by Atlantis Press.

Open Access

This is an open access article distributed under the CC BY-NC license (http://creativecommons.org/licenses/by-nc/4.0/).

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TY  - CONF
AU  - Hongyuan Chen
PY  - 2012/08
DA  - 2012/08
TI  - Achieving the Maximal Throughput Via a Collision-aware DCF
BT  - Proceedings of the 2012 International Conference on Computer Application and System Modeling (ICCASM 2012)
PB  - Atlantis Press
SP  - 960
EP  - 963
SN  - 1951-6851
UR  - https://doi.org/10.2991/iccasm.2012.244
DO  - 10.2991/iccasm.2012.244
ID  - Chen2012/08
ER  -