Channel ranking based on packet delivery ratio estimation in wireless sensor networks
Loading...
Access rights
© 2013 IEEE. Personal use of this material is permitted. Permission from IEEE must be obtained for all other uses, in any current or future media, including reprinting/republishing this material for advertising or promotional purposes, creating new collective works, for resale or redistribution to servers or lists, or reuse of any copyrighted component of this work in other work.
URL
Journal Title
Journal ISSN
Volume Title
School of Electrical Engineering |
A1 Alkuperäisartikkeli tieteellisessä aikakauslehdessä
Unless otherwise stated, all rights belong to the author. You may download, display and print this publication for Your own personal use. Commercial use is prohibited.
Date
2013
Major/Subject
Mcode
Degree programme
Language
en
Pages
59-64
Series
Abstract
Wireless sensor networks (WSNs) operating in 2.4 GHz unlicensed bands must explore favorable channels in order to mitigate the effects of induced interference by co-existing wireless systems and frequency selective fading. In this context, we develop a packet delivery ratio (PDR) estimation method for channel ranking in WSNs. The PDR, in general, is defined as a function of signal-to-noise ratio (SNR) and signal-to-interferenceplus-noise ratio (SINR) at the sensor and the packet collision-time distribution of the sensor link. The collision-time distribution depends on the packet size and packet inter-arrival time distributions of both networks. Under limited channel measurements, the collision-time cannot be estimated satisfactorily. In order to bypass the collision-time estimation process, the proposed PDR estimation method utilizes signal level, interference and noise characteristics identified by spectrum measurements adjusted to the intended traffic pattern of the sensor link. The proposed method is validated against the empirical PDR using off-the-shelf sensor platform in emulated multi path wireless fading channels. The results reveal that the method is accurate in modeling the empirical PDR with limited channel energy measurements. In addition, we used the estimated PDR as a metric for channel ranking and verified its effectiveness by ranking the available channels to a WSN under interference from multiple WLANs in a real environment.Description
Keywords
Wireless sensor network, wireless LAN, coexistence, packet delivery ratio, channel ranking
Other note
Citation
Shariatmadari, Hamidreza & Mahmood, Aamir & Jäntti, Riku. 2013. Channel ranking based on packet delivery ratio estimation in wireless sensor networks. IEEE Wireless Communications and Networking Conference (WCNC) 2013. 59-64. 978-1-4673-5937-5 (electronic). 978-1-4673-5938-2 (printed).