rts cts mechanism for indoor localization
báo cáo hóa học:" Bayesian filtering for indoor localization and tracking in wireless sensor networks" doc
... [51], wherein a UKF has outperformed a SPF for the particular application of localization Moreover, it can also be observed that Bayesian filters have better performance as compared to the LS ... even a trivial prior information can enhance the performance, thus showing the superiority of Bayesian filters to non-Bayesian ones In Fig 6, the CDF of the localization error for three values of ... least-squares for distributed estimation over adaptive networks IEEE Trans Signal Process 56(5), 1865–1877 (2008) [5] A Gasparri, F Pascucci, An interlaced extended information filter for self-localization...
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Báo cáo hóa học: " Bayesian filtering for indoor localization and tracking in wireless sensor networks" docx
... [51], wherein a UKF has outperformed a SPF for the particular application of localization Moreover, it can also be observed that Bayesian filters have better performance as compared to the LS ... even a trivial prior information can enhance the performance, thus showing the superiority of Bayesian filters to non-Bayesian ones In Fig 6, the CDF of the localization error for three values of ... least-squares for distributed estimation over adaptive networks IEEE Trans Signal Process 56(5), 1865–1877 (2008) [5] A Gasparri, F Pascucci, An interlaced extended information filter for self-localization...
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Dead reckoning algorithms for indoor localization
... solutions for the indoor localization problem, as correction technologies are not included However, these algorithms can be easily integrated into other technologies and therefore the effort has ... their performance is far below customer’s expectation for localization in urban areas and indoor environment under which circumstances GPS signal is not reliable or even available Therefore, to ... provide robust and reliable localization in indoor environment, more advanced technologies must be applied In the past years, various localization technologies suitable for indoor environments have...
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Dead reckoning algorithms for indoor localization
... solutions for the indoor localization problem, as correction technologies are not included However, these algorithms can be easily integrated into other technologies and therefore the effort has ... their performance is far below customer’s expectation for localization in urban areas and indoor environment under which circumstances GPS signal is not reliable or even available Therefore, to ... provide robust and reliable localization in indoor environment, more advanced technologies must be applied In the past years, various localization technologies suitable for indoor environments have...
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báo cáo hóa học:" Research Article Hybrid RSS-RTT Localization Scheme for Indoor Wireless Networks" doc
... hybrid localization scheme coupled with simulations and measurements in a cluttered indoor environment demonstrates that it outperforms the conventional RSS-based and RTT-based indoor localization ... anchor using the RTS/ CTS two-frame exchange IEEE 802.11 mechanism Although RTT-based ranging eliminates the error due to imperfect time synchronization because it does not need for time synchronization ... them for localization [33] have to be used Nevertheless, their reliability remains questionable in an indoor environment with abundant scatters where almost all anchors will be in NLOS Therefore,...
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Báo cáo hóa học: " Research Article A Wireless Sensor Network for RF-Based Indoor Localization" pptx
... RF-based indoor localization proposals, and (iii) experiments with real resource constrained WSN prototypes The rest of the paper is organized as follows In Section 2, we survey related indoor localization ... RELATED RESEARCH Ubiquitous localization has been widely studied during the recent years In general, the solutions focus on finding Ubiquitous indoor localization Localization approaches can be ... nodes scan for LBs, the location nodes are relieved from performing active neighbor discovery The LBs are dual-purpose First, they form the basis of LocMAC base collision-avoidance (CA) mechanism...
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Báo cáo hóa học: "Research Article A Markov Model for Dynamic Behavior of ToA-Based Ranging in Indoor Localization" ppt
... ethernet for indoor localization, ” IEEE Transactions on Robotics and Automation, vol 20, no 3, pp 555–559, 2004 [22] C Morelli, M Nicoli, V Rampa, and U Spagnolini, “Hidden Markov models for radio localization ... for different classes of receiver locations Modeling the ranging error observed in different classes of receiver locations in indoor localization is the major challenge in the analysis of an indoor ... conducted in different indoor environments Quantitatively, for the selection of the best distribution, we refer to the Akaike information criterion [42], represented in Table 2, by forming the log-likelihood...
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Báo cáo hóa học: "Research Article Cooperative Localization Bounds for Indoor Ultra-Wideband Wireless Sensor Networks" pdf
... range and localization accuracy Therefore, there is a need to analyze the impact of these channel limitations on the performance of cooperative localization in indoor WSNs Evaluation of localization ... a realistic platform in which to analyze the G-CRLB and the localization accuracy in different indoor multipath environments 3.1 INDOOR COOPERATIVE LOCALIZATION BOUNDS Problem formulation Based ... on localization accuracy This modeling framework is necessary since OTI channel behavior affects anchor-node range estimation while ITI affects the node-node ranges We first show that for the aforementioned...
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Báo cáo hóa học: "Robust Estimator for Non-Line-of-Sight Error Mitigation in Indoor Localization" pptx
... NLOS problem, but not all of them are applicable in every environment For radiofrequency-based indoor positioning systems, for which the coverage area should be small, Pahlavan et al propose premeasurement-based ... validated the suitability of the method for NLOS mitigation and compared it to other methods Then we evaluated its performance in a real implementation of an indoor positioning system working with ... therefore accurate, but its relation to distance suffered from all the NLOS errors Because this relation to distance was the main source of error, we had to characterize it for the case of an indoor...
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A 65 nm CMOS ultra low power impulse radio ultra wideband emitter for short range indoor localization pdf
... case value of path loss (i.e., for 10 m and N0 /2 = 10−19 W/Hz.14 15 ) The minimum Et was found to be 0.48 pJ for SNR = dB and 4.8 pJ for SNR = 10 dB For a short-range indoor application with a m ... Experimental study of UWB-based high precision localization for industrial 357 A 65 nm CMOS Ultra-Low-Power IR-UWB Emitter for Short-Range Indoor Localization 14 15 16 17 18 applications, IEEE ... the same quality of the pulse shape and its corresponding FOR LOCALIZATION PSD for usual variations of process, supply voltage and In a localization application, several requirements have temperature...
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Tài liệu INTERIOR LANDSCAPE PLANTS FOR INDOOR AIR POLLUTION ABATEMENT ppt
... Council for and characterization In Indoor on Toxicology 1980 Formaldehyde an National Academy of Sciences 20 1981 Formaldehyde Air assess- and other 23 NationalResearch ouncil,Committee IndoorPollutants.1981.Indoorpollutants ... Office K.R for wastewater plants for the indoor and nitrogen treatment Reddy plants for remov38(2):224-29 dioxide and W.H treatment J Miss In Aquatic plants Smith, and water reuse eds., for In Proceedings ... the two chambers was determined 120 s for the large chamber benzene Sampling and to the chamber the formaldehyde range was performed Because air pump of the formaldehyde-specific the Sensidyne-Gastec...
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Tài liệu Báo cáo khoa học: "A COMPUTATIONAL MECHANISM FOR PRONOMINAL REFERENCE" pot
... checked for minimality during a second Since update-node is a general mechanism for adding or modifying information to a node on the basis of c-commanding constituents it is fairly straightforward ... number, s For bound anaphors, this is straightforward: a bound anaphor and its antecedent must agree in person and number For personal pronouns, on the other hand, eCuwently,NPs are not specifiedfor ... conjuncts of a conjoined NP can be the antecedent of a reflexive: (29) "John and Mary like himself However, all of the conjuncts of a conjoined NP are impossible antecedents for any pronoun for...
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A Survey on Network Security and Attack Defense Mechanism For Wireless Sensor Networks pdf
... packet format and the semantic meaning of the communication protocol In that case, the attacker can modify a packet to change its content so that the receiver obtains wrong information In a WSN, for ... the packet format defined in the network protocol stack The injected packets can carry false information, which may be accepted by receiving nodes Applications deployed in a WSN, for example, ... by the false information Routing protocols can fail due to the false routing information The Sybil attack [15] is a typical example of packet injection D Data Freshness All information describes...
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Báo cáo khoa học: The benzophenanthridine alkaloid sanguinarine perturbs microtubule assembly dynamics through tubulin binding A possible mechanism for its antiproliferative activity Manu Lopus and Dulal Panda docx
... been reported for other antitubulin agents For example, halogenated derivatives of acetamidobenzoyl ethyl ester were found to depolymerize microtubules and produce irreversible effects on cellular ... previously [14] Sulforhodamine B assay was performed with some modifications [14] FEBS Journal 273 (2006) 2139–2150 ª 2006 The Authors Journal compilation ª 2006 FEBS 2147 Antiproliferative mechanism of ... and grown for 20 h Then, different concentrations of sanguinarine were added to the wells, and cells were incubated for 20 h The cells were then fixed with 10% trichloroacetic acid for h, rinsed...
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A Scalable and Explicit Event Delivery Mechanism for UNIX doc
... includes a procedure named WaitForMultipleObjects(), declared as: DWORD WaitForMultipleObjects( DWORD cObjects, // number of handles in handle array CONST HANDLE * lphObjects, // address of object-handle ... effort tranforming information back from the state-based model These dual transformations create extra work Our new API follows the event-based approach In this model, the kernel simply reports ... descriptors while it is blocked waiting for data (or for output buffer space) UNIX supports non-blocking operation for read() and write(), but a naive use of this mechanism, in which the application...
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ULTRA-WIDEBAND RADIO TECHNOLOGIES FOR COMMUNICATIONS, LOCALIZATION AND SENSOR APPLICATIONS ppt
... making UWB the key technology for indoor radio localization, be it infrastructure-based localization, relative inter-terminal localization in ad-hoc networks, or passive localization (e.g radar imaging) ... the Ph.D with honours from the former GerhardMercator University Duisburg in 1983 He was awarded for both degrees He then worked for Dräger in Lübeck for years before he returned to University ... function f Y | A (·| am ) has the form (6) There does not exist a closed form for the distribution function in general But for D ∈ Z + it can also be solved in closed form with the help of the Marcum-Q...
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Báo cáo khoa học: Complexes of Thermoactinomyces vulgaris R-47 a-amylase 1 and pullulan model oligossacharides provide new insight into the mechanism for recognizing substrates with a-(1,6) glycosidic linkages docx
... conditions as for the wild-type or using a reservoir solution composed of 1–3% (w ⁄ v) PEG10000 and 12.5 mm KH2PO4, leading to different crystal forms (Form and Form 2), because Form could not ... subsites that are more suitable for pullulan than for starch Phe313 changes the conformation of its side chain depending on the structure of the substrate to form favorable interactions with ... 13.9 54.5 19.4 ˚ ˚ The values for the highest resolution shell are given in parentheses (2.21–2.08 A for D356N/P2, 2.23–2.10 A for D356N/E396Q/P2, and ˚ 2.76–2.60 A for D356N/E396Q/P5) a Overall...
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A new mechanism for modulation of schottky barrier heights on silicon nanowires
... the metal The barrier lowering for this concentration at a distance of nm from the MS interface, enough for appreciable carrier tunneling, is seen to be about 0.2 eV For our experiments, samples ... close to the MS interface For barrier modulation on p-type silicon, a similar effect would be expected from a deep double acceptor like for instance Zn with an energy level for the most shallow captured ... value for substantial tunneling This gives an energy lowering similar to the experimental data as given in Ref [10] Schottky barriers at nanowire end surfaces modified by surface charge For nanowire...
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Báo cáo khoa học: Kinetic mechanism for p38 MAP kinase a A partial rapid-equilibrium random-order ternary-complex mechanism for the phosphorylation of a protein substrate potx
... lm) [26] The simplest mechanism accounting for the ATP hydrolysis is shown in Scheme 2A According to this mechanism, MgATP reversibly binds p38 MAPKa in the active site to form the binary complex ... Menten constant for MgATP, we assume a rapid-equilibrium mechanism where Km ¼ k–a ⁄ ka ¼ 353 lm A conservative estimate for the second-order rate constant of ka ¼ 104 m)1Æs)1 for the binding ... respective binary complexes, if the mechanism was a full rapid-equilibrium mechanism More realistically however, the mechanism is likely to be a partial rapid-equilibrium mechanism, where the aKA represents...
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