NDLI: Link longevity Kalman-estimator for ad hoc networks

Content Provider	IEEE Xplore Digital Library
Author	Rui Huang Zaruba, G.V. Huber, M.
Copyright Year	2004
Description	Author affiliation: Dept. of Comput. Sci. & Eng., Texas Univ., Arlington, TX, USA (Rui Huang; Zaruba, G.V.; Huber, M.)
Abstract	In ad hoc networks, links are established on the fly as mobile nodes move in and out of each other's transmission range. Due to this mobility, routes can be disrupted while in service. Availability of a good estimation of link longevity between neighboring nodes could permit the selection of a more stable route, thus enabling a better enforcement of quality of service (QoS) contracts. In this paper, we propose three link longevity estimators that could be embedded into mobile nodes. In our approach, link longevity estimates do not require knowledge of the mobility patterns/models of nodes. The foundation of all three designs lies in extended Kalman filtering, where a linear process model is implemented to represent the state transition, while a non-linear measurement model is included to account for the received signal strength indication measurements. We provide with the mathematical background for our estimators and their input/output vectors, and show various performance metrics using extensive simulations. We conclude that our filters provide good estimates for the remaining up-time of wireless links.
Starting Page	2819
Ending Page	2823
File Size	256604
Page Count	5
File Format	PDF
ISBN	0780379543
ISSN	10903038
DOI	10.1109/VETECF.2003.1286117
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2003-10-06
Publisher Place	USA
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Ad hoc networks Quality of service Availability Contracts Signal design Kalman filters Nonlinear filters Filtering Signal processing Vectors
Content Type	Text
Resource Type	Article

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