G-DCF: Improving System Spectral Efficiency through Concurrent Transmissions in Wireless LANs
Joint Authors
So, Jungmin
Eliab, Ayinebyona
Kim, Yonghwi
Lee, Joosang
Lee, Jeong-Gun
Source
Wireless Communications and Mobile Computing
Issue
Vol. 2019, Issue 2019 (31 Dec. 2019), pp.1-16, 16 p.
Publisher
Hindawi Publishing Corporation
Publication Date
2019-09-11
Country of Publication
Egypt
No. of Pages
16
Main Subjects
Information Technology and Computer Science
Abstract EN
This paper presents G-DCF, a MAC protocol for wireless LANs that can improve system spectral efficiency of wireless LANs by allowing more concurrent transmissions.
The 802.11 DCF creates exposed terminals which are nodes that can transmit successfully but are blocked by carrier sensing.
More potential exposed terminals are created when APs are densely placed, limiting spatial reuse of channels and thus system throughput.
In order to allow concurrent transmissions from exposed terminals, G-DCF establishes groups in the network.
Members of a group are nodes located within the carrier sense range of each other but can transmit packets concurrently.
Whenever one member of a group wins the channel and transmits its packet, other nodes in the group also start transmission, triggered by the group ID included in the preamble.
Contention window is adjusted according to the group size for fair share of the channel.
Performance evaluations show that G-DCF can significantly improve system throughput and fairness over 802.11 DCF, especially when the APs are densely deployed.
American Psychological Association (APA)
Eliab, Ayinebyona& Kim, Yonghwi& Lee, Joosang& Lee, Jeong-Gun& So, Jungmin. 2019. G-DCF: Improving System Spectral Efficiency through Concurrent Transmissions in Wireless LANs. Wireless Communications and Mobile Computing،Vol. 2019, no. 2019, pp.1-16.
https://search.emarefa.net/detail/BIM-1212180
Modern Language Association (MLA)
Eliab, Ayinebyona…[et al.]. G-DCF: Improving System Spectral Efficiency through Concurrent Transmissions in Wireless LANs. Wireless Communications and Mobile Computing No. 2019 (2019), pp.1-16.
https://search.emarefa.net/detail/BIM-1212180
American Medical Association (AMA)
Eliab, Ayinebyona& Kim, Yonghwi& Lee, Joosang& Lee, Jeong-Gun& So, Jungmin. G-DCF: Improving System Spectral Efficiency through Concurrent Transmissions in Wireless LANs. Wireless Communications and Mobile Computing. 2019. Vol. 2019, no. 2019, pp.1-16.
https://search.emarefa.net/detail/BIM-1212180
Data Type
Journal Articles
Language
English
Notes
Includes bibliographical references
Record ID
BIM-1212180