DocumentCode :
2982988
Title :
Access Point Initiated Approach for Interfered Node Detection in 802.11 WLANs
Author :
Fujita, Hiroshi ; Ozaki, Kazuyuki ; Yun Wen ; Amezawa, Yasuharu ; Kojima, Chikara ; Kobayashi, Hideyuki
Author_Institution :
FUJITSU Labs. Ltd., Kawasaki, Japan
fYear :
2015
fDate :
11-14 May 2015
Firstpage :
1
Lastpage :
5
Abstract :
Automated interference detection is required for operation and management services in wireless networks as Wireless Local Area Networks (WLANs) based on IEEE 802.11 Standard since co-channel interference from other wireless transmitters occurs irregularly. We propose a new approach for detecting the presence of interference on 802.11 links. Our solution focuses on the Access Point (AP)-initiated monitoring approach without Wireless Station (STA)-initiated additional function and sniffer devices. Our approach uses the geographical distribution of the response delay of the Acknowledgment packet (ACK) to the downlink packet that AP transmitted to STAs. The proposed method consists of a continuous monitoring step and a periodical diagnosis step to measure network statistics by ACK response delay between an AP and STAs and to detect whether and where interference occurs respectively. Comprehensive simulation results show that the proposed approach has a good accuracy and low misdetection ratio for diagnosing the interference existence and location in IEEE 802.11 WLANs.
Keywords :
cochannel interference; computer network management; interference suppression; packet radio networks; radio links; radio transmitters; wireless LAN; ACK response delay; IEEE 802.11; WLAN; access point initiated approach; acknowledgment packet; automated interference node detection; cochannel interference; continuous monitoring; downlink packet; geographical distribution; management services; operation services; periodical diagnosis; radio link; sniffer devices; wireless local area networks; wireless transmitter; Accuracy; Delays; IEEE 802.11 Standards; Interference; Monitoring; Receivers; Wireless communication;
fLanguage :
English
Publisher :
ieee
Conference_Titel :
Vehicular Technology Conference (VTC Spring), 2015 IEEE 81st
Conference_Location :
Glasgow
Type :
conf
DOI :
10.1109/VTCSpring.2015.7145661
Filename :
7145661
Link To Document :
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