Channel observation‐based scaled backoff mechanism for high‐efficiency WLANs. Issue 10 (1st May 2018)

• Record Type: Journal Article
• Authors: Ali, R.; Shahin, N.; Kim, Y.‐T.; Kim, B.‐S.; Kim, S.W.
• Is Part Of: Electronics letters. Volume 54:Issue 10(2018)
• Page Start: 663
• Page End: 665
• Publication Date: 2018-05-01
• Subjects: wireless LAN -- carrier sense multiple access -- wireless channels -- access protocols; channel observation‐based scaled backoff mechanism -- high‐efficiency WLAN -- COSB mechanism -- carrier sense multiple access‐with‐collision avoidance -- CSMA‐CA -- high efficiency wireless local area networks -- blind scaling -- contention window -- binary exponential backoff scheme -- BEB scheme -- data frames -- throughput; Electronics -- Periodicals; 621.381
• DOI: 10.1049/el.2018.0617
• Languages: English
• ISSNs: 0013-5194

Abstract

Abstract : 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.