Open AccessChannel observation‐based scaled backoff mechanism for high‐efficiency WLANs
Author(s) -
Ali R.,
Shahin N.,
Kim Y.T.,
Kim B.S.,
Kim S.W.
Publication year - 2018
Publication title -
electronics letters
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.375
H-Index - 146
eISSN - 1350-911X
pISSN - 0013-5194
DOI - 10.1049/el.2018.0617
Subject(s) - exponential backoff , computer science , computer network , channel (broadcasting) , throughput , distributed coordination function , carrier sense multiple access with collision avoidance , wireless lan , local area network , wi fi , wireless , wireless network , ieee 802.11 , telecommunications
A channel observation‐based scaled backoff (COSB) mechanism for the carrier sense multiple access with collision avoidance of high efficiency wireless local area networks (WLANs) is devised. The proposed protocol modifies the blind scaling of contention window ( W ) in binary exponential backoff (BEB) scheme of currently deployed WLANs. COSB is employed to adaptively scale‐up and scale‐down the W size during the backoff mechanism for collided and successfully transmitted data frames, respectively. It can achieve higher throughput and shorter delay compared to the conventional BEB mechanism in highly dense WLANs.