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461
DPM-based method for tracking maneuvering targets in wireless sensor networks
Published 2010-01-01“…Focused on energy efficiency issues under tracking targets within WSN,a new dynamic power management(DPM) method for tracking distributed targets was proposed combining with the network energy consumption model and wake-up mechanism.With precedent location information of maneuvering target,the algorithm involved both cancelling noise by wavelet filter and predicting target state by autoregressive transformation is introduced to awaken wireless sensor nodes so that their sleep time is prolonged and energy consumption is reduced.According to the current location of maneuvering target,related nodes in an appointed cluster of WSN constitute a distributed dynamic tracking unit,and the cluster head is responsible for collecting the measurement information from the nodes in the tracking unit.A locating algorithm based on the relative posi-tion of two circulars formed on the bases of measurement information is adopted to simplify the process of locatiny and tracking target.Simulation results show that the DPM-based method can reduce the nodes’ energy consumption,meet the locating and tracking accuracy,and can be applied to locate and track the maneuvering targets on the earth surface.…”
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462
Handover technology in high-speed railway broadband wireless communication system
Published 2017-11-01Subjects: Get full text
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463
Fault detection and diagnosis method for heterogeneous wireless network based on GAN
Published 2020-08-01Subjects: “…heterogeneous wireless network…”
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464
Energy dissipation balanced and reliable clustering algorithm for wireless sensor networks
Published 2012-11-01Subjects: “…wireless sensor networks…”
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465
Relativity analysis on wireless value-added services market and SP regulation
Published 2008-01-01“…Number, CI (corporation image) and creativity of SP (services provider), set up a theory model on WVAS(wireless value-added services) market and SP regulation, to research regulation’s impact on SP market were analyed. …”
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466
Sensing Coverage Prediction for Wireless Sensor Networks in Shadowed and Multipath Environment
Published 2013-01-01“…Sensing coverage problem in wireless sensor networks is a measure of quality of service (QoS). …”
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467
Optimization of Wireless Communication Coverage in Underground Tunnels Based on Zone Division
Published 2020-01-01“…In order to reduce the path loss of the wireless communication signal in the underground tunnel, a scheme for configuring the antenna polarization of wireless systems based on a zone-division method is proposed. …”
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468
Robust Estimation Fusion in Wireless Senor Networks with Outliers and Correlated Noises
Published 2014-04-01“…This paper addresses the problem of estimation fusion in a distributed wireless sensor network (WSN) under the following conditions: (i) sensor noises are contaminated by outliers or gross errors; (ii) process noise and sensor noises are correlated; (iii) cross-correlation among local estimates is unknown. …”
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469
Performance study of streaming services over all-IP wireless networks
Published 2007-01-01Subjects: “…wireless network…”
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470
A Clustering Metbod Based on tbe Tbresbold in Wireless Heterogeneous Network
Published 2015-04-01“…The base station clustering problems in wireless heterogeneous network to suppress the inter cell interference were studied.A clustering method based on the threshold,which can improve the system performance,was proposed.The method maximizes the transmission rate for the target under the heterogeneous network scenarios,then selecting the base stations meeting the threshold value to collaborate,at the same time considering the user belonging-base station's signal intensity and the no-belongings' interference.The receiver transmission rate in different clustering methods was analyzed.The simulation results show that the proposed method is better than the existing methods in the system transmission rate.…”
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471
On the Problem of Energy Balanced Relay Sensor Placement in Wireless Sensor Networks
Published 2013-10-01“…Balanced energy depletion is an important way to prolong network lifetime for wireless sensor networks. Traditional algorithms mainly aim at maximizing network coverage rate with uniform sensor node distribution. …”
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472
Energy Efficient Cluster Based Scheduling Scheme for Wireless Sensor Networks
Published 2015-01-01“…The energy utilization of sensor nodes in large scale wireless sensor network points out the crucial need for scalable and energy efficient clustering protocols. …”
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473
A Jigsaw-Based Sensor Placement Algorithm for Wireless Sensor Networks
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474
A Comparative Study of Routing Protocols of Heterogeneous Wireless Sensor Networks
Published 2014-01-01“…Recently, heterogeneous wireless sensor network (HWSN) routing protocols have drawn more and more attention. …”
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475
Variational Inference of Kalman Filter and Its Application in Wireless Sensor Networks
Published 2013-11-01“…To verify the effectiveness of the proposed algorithm, VIKF is applied to the state estimation of discrete linear state space and the tracking problems in wireless sensor networks. Simulation results show that the variational approximation is effective and reliable for the linear state space, especially for the case with time-varying non-Gaussian noise.…”
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476
Increasing capacity for wireless communication systems based on signal waveform collaboration
Published 2012-02-01“…A wireless communication technology based on signal waveform collaboration was proposed for resolving the conflict between limited spectrum resources and the rapidly growing service needs.The proposed technology employs linear frequency modulation (LFM) signals to transmit different users' information by utilizing the dual relationship between the energy concentration property of sinusoidal signals and that of LFM signals in the frequency and fractional domains,and the transmitted signals are superimposed on communication waveforms of the traditional sinusoidal carrier communication system on the same frequency band.At the receiver,frequency-and fractional-domain filters are applied to separate two kinds of users' signals.Moreover,the system model of the proposed technology is constructed,and theoretical analysis is also derived.The validity of the theoretical derivations is demonstrated via simulations.It has been shown that spectral efficiency can be effectively improved using signal waveform collaboration and transform-domain filtering.Theoretically,the proposed technology can achieve twice system capacity as large as that of the traditional sinusoidal carrier communication system.…”
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477
Multi-ray channel modeling for programmable wireless environments in the terahertz band
Published 2019-07-01Subjects: “…programmable wireless environment…”
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478
Performance Prediction of a Synchronization Link for Distributed Aerospace Wireless Systems
Published 2013-01-01“…For reasons of stealth and other operational advantages, distributed aerospace wireless systems have received much attention in recent years. …”
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479
Cooperative transmission scheme based on GSC for cognitive wireless sensor network
Published 2013-09-01Subjects: “…wireless sensor network…”
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480
A Conflict Avoidance Scheme for WiMedia Wireless Home Networks
Published 2013-03-01“…We propose an efficient resource reservation scheme for UWB (Ultrawideband) WPAN (Wireless Personal Area Network) with D-MAC (Distributed Medium Access Control). …”
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