The DOI matches its Crossref record; 43 of the 43 references it cites were found in a registry or an index.
Fundamental Limits of Wideband Localization— Part I: A General Framework
Open accessAbstract
The availability of position information is of great importance in many commercial, public safety, and military applications. The coming years will see the emergence of location-aware networks with submeter accuracy, relying on accurate range measurements provided by wide bandwidth transmissions. In this two-part paper, we determine the fundamental limits of localization accuracy of wideband wireless networks in harsh multipath environments. We first develop a general framework to characterize the localization accuracy of a given node here and then extend our analysis to cooperative location-aware networks in Part II. In this paper, we characterize localization accuracy in terms of a performance measure called the squared position error bound (SPEB), and introduce the notion of equivalent Fisher information (EFI) to derive the SPEB in a succinct expression. This methodology provides insights into the essence of the localization problem by unifying localization information from individual anchors and that from a priori knowledge of the agent's position in a canonical form. Our analysis begins with the received waveforms themselves rather than utilizing only the signal metrics extracted from these waveforms, such as time-of-arrival and received signal strength. Hence, our framework exploits all the information inherent in the received waveforms, and the resulting SPEB serves as a fundamental limit of localization accuracy.
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Locating the nodes: cooperative localization in wireless sensor networks
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Metadata
- Authors
- Shen, Y., & Win, M. Z.
- Venue
- IEEE Transactions on Information Theory
- Published
- 2010-10
- Volume
- 56
- Issue
- 10
- Pages
- 4956-4980
- ISSN
- 0018-9448 (ISSN-L)
- 1557-9654
- OpenAlex
- W2156668452
- Cited by
- 769
- References
- 43
- FWCI
- 29.16
- Type
- journal article
- Language
- en
- Open access
- green
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