NDLI: Transmit Power Control exploiting capture effect for WLANs

Content Provider	IEEE Xplore Digital Library
Author	Szu-Lin Su Yuan-Chun Tsai Hsieh-Cheng Liao
Copyright Year	2015
Description	Author affiliation: Inst. of Comput. & Commun. Eng., Nat. Cheng Kung Univ., Tainan, Taiwan (Szu-Lin Su; Yuan-Chun Tsai; Hsieh-Cheng Liao)
Abstract	Wireless local area networks (WLANs) have been globally deployed for years. Today, most WLANs adopt IEEE 802.11 distributed coordination function (DCF) for stations to share the medium. IEEE 802.11 DCF employs contention-based channel access, and as generally known, collision will happen when multiple stations launch transmissions simultaneously. However, from physical layer perspective, if the signal strength of one transmission is much higher than that of others, then the access point (AP) will be able to decode the transmission. This is called capture effect. Capture effect has the potential to improve the contention efficiency. In this paper, we propose Differentiated-Received-Power Transmit Power Control (DRP-TPC), which exploits capture effect to improve the contention efficiency. With DRP-TPC, each STA configures the transmit power, such that the received power at the AP side will meet a pre-specified requirement. DRP-TPC properly sets the received-power requirements, and thus, when multiple STAs launch transmissions simultaneously, the AP will still be able to decode the transmission with the best received signal strength. Simulation results show that, DRP-TPC outperforms the conventional TPCs in saturated throughput and medium access delay.
Starting Page	634
Ending Page	638
File Size	885486
Page Count	5
File Format	PDF
ISBN	9781479989935
ISSN	22880712
DOI	10.1109/ICUFN.2015.7182621
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2015-07-07
Publisher Place	Japan
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	IEEE 802.11 DCF Wireless local area networks Interference medium access control capture effect Performance analysis transmit power control Signal to noise ratio
Content Type	Text
Resource Type	Article

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1	Ministry of Education (GoI), Department of Higher Education	Sanctioning Authority	https://www.education.gov.in/ict-initiatives
2	Indian Institute of Technology Kharagpur	Host Institute of the Project: The host institute of the project is responsible for providing infrastructure support and hosting the project	https://www.iitkgp.ac.in
3	National Digital Library of India Office, Indian Institute of Technology Kharagpur	The administrative and infrastructural headquarters of the project	Dr. B. Sutradhar bsutra@ndl.gov.in
4	Project PI / Joint PI	Principal Investigator and Joint Principal Investigators of the project	Dr. B. Sutradhar bsutra@ndl.gov.in Prof. Saswat Chakrabarti will be added soon
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8	Digital Preservation Centre (DPC)	Assistance with digitizing and archiving copyright-free printed books	dpc@ndl.gov.in
9	IDR Setup or Support	Queries related to establishment and support of Institutional Digital Repository (IDR) and IDR workshops	idr@ndl.gov.in

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