NDLI: A Virtual Collision Mechanism to Decrease Collisions in IEEE 802.11 MAC Layer

Content Provider	IEEE Xplore Digital Library
Author	Kai Kang Xiaokang Lin Haibo Hu
Copyright Year	2007
Description	Author affiliation: Dept. of Electron. Eng., Tsinghua Univ., Beijing (Kai Kang; Xiaokang Lin)
Abstract	This paper proposes a mechanism to decrease collisions in IEEE 802.11 DCF (distributed coordination function) for high load BSSs (basic service sets). Two slots are assembled together to form a super slot, and the station's backoff counter decreases in terms of super slot time as long as the channel is sensed idle. When a station sends a packet in a super slot, it sends the packet at the first slot with probability q and at the second slot with probability (1-q). Thereby, if more than one station transmits packets in a super slot all together, a part of collisions is changed into successful transmissions or virtual collisions. When a BSS is under high load, applying this mechanism in DCF greatly improves the throughput and lowers the energy consumed by collisions. In a word, this method is easy way to implement and improves DCF's performance considerably.
Starting Page	1188
Ending Page	1192
File Size	259680
Page Count	5
File Format	PDF
ISBN	1424402662
ISSN	15502252
DOI	10.1109/VETECS.2007.251
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2007-04-22
Publisher Place	Ireland
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Throughput Wireless LAN Counting circuits Media Access Protocol Multiaccess communication Assembly Local area networks Power engineering and energy Costs Hardware
Content Type	Text
Resource Type	Article
Subject	Applied Mathematics Electrical and Electronic Engineering Computer Science Applications

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