NDLI: Direct PCF

Content Provider	IEEE Xplore Digital Library
Author	Liao, J.-R. Shun-Zhi Lee
Copyright Year	2009
Description	Author affiliation: Dept. of Electrical Engineering, National Chung Hsing University, Taichung, Taiwan (Liao, J.-R.; Shun-Zhi Lee)
Abstract	In original 802.11 infrastructure network, a station (STA) is not allowed to transmit frames directly to other STAs within range. Frame delivery should rely on access point (AP) because recipients may be in power save mode and must be woke up before transmission. To allow direct transmission, 802.11e defines a new operation called direct link set-up (DLS). In DLS, STA can initiate a direct link through AP. One problem not addressed in DLS is how STA collects its neighborhood information. Without this information, it is difficult to know when to establish a direct link. Therefore, we proposed a new direct link protocol for 802.11 PCF and HCCA. We call it Direct PCF (DPCF). Because AP knows all the STAs in its range, the initiator of a direct link in our protocol is AP. We show that DPCF is efficient in data delivery and quick in error recovery. 802.11
Starting Page	967
Ending Page	970
File Size	324452
Page Count	4
File Format	PDF
ISBN	9781424429752
DOI	10.1109/ISCE.2009.5156838
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2009-05-25
Publisher Place	Japan
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Access protocols Wireless LAN Quality of service Robustness Access control Ad hoc networks Consumer electronics Communication standards Relays Standards development direct link PCF HCCA
Content Type	Text
Resource Type	Article

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