dc.contributor.author |
Mahi-Rekik, Latifa Souad |
|
dc.contributor.author |
Bourenane, Malika |
|
dc.date.accessioned |
2018-07-04T06:13:20Z |
|
dc.date.available |
2018-07-04T06:13:20Z |
|
dc.date.issued |
2018-07-01 |
|
dc.identifier.issn |
2210-142X |
|
dc.identifier.uri |
http://10.7.0.19:8080/xmlui/handle/123456789/186 |
|
dc.description.abstract |
With the emergence of time-sensitive applications such as games and telephony, the introduction of the Quality of Service (QoS) in general and the improvement of transmission delays in particular have become a must in wireless networks. The distributed coordination function (DCF) being the fundamental access method and the basis of the wireless LANs IEEE 802.11 MAC protocol, a great number of works have been done to improve it. In DCF, after sensing an idle channel, stations have to wait before the transmission of each frame a length of time called DIFS (DCF Inter Frame Space) followed by another called back-off. If the medium becomes busy during the back-off process, the back-off timer is paused and resumed when the medium is sensed free for a DIFS again. This time loss becomes considerable when the number of interruptions of back-off process grows. This paper proposes a contribution to improve DCF by combining IFS and back-off time. The simulation results show that the approach benefits are proportional to the contention level of the network and to the number of hops in multi-hop network topologies. |
en_US |
dc.description.sponsorship |
University of Bahrain |
en_US |
dc.language.iso |
en |
en_US |
dc.publisher |
University of Bahrain |
en_US |
dc.rights |
Attribution-NonCommercial-ShareAlike 4.0 International |
* |
dc.rights.uri |
http://creativecommons.org/licenses/by-nc-sa/4.0/ |
* |
dc.subject |
CSMA/CA |
|
dc.subject |
DCF |
|
dc.subject |
IFS |
|
dc.subject |
DIFS |
|
dc.subject |
Back-off algorithm |
|
dc.subject |
contention window |
|
dc.subject |
IEEE 802.11 |
en_US |
dc.title |
IEEE 802.11 DCF Improvement: Waiting DIFS while Waiting Back-off |
en_US |
dc.type |
Article |
en_US |
dc.identifier.doi |
http://dx.doi.org/10.12785/IJCDS/070405 |
|
dc.volume |
07 |
|
dc.issue |
04 |
|
dc.pagestart |
215 |
|
dc.pageend |
223 |
|
dc.source.title |
International Journal of Computing and Digital Systems |
|
dc.abbreviatedsourcetitle |
IJCDS |
|