Báo cáo hóa học: " Research Article Admission Control Threshold in Cellular Relay Networks with Power Adjustment" ppt
Báo cáo hóa học: " Research Article Admission Control Threshold in Cellular Relay Networks with Power Adjustment" ppt
... considered. In this paper, however, we propose a newmethod for admission capacity planning in OFMDA cellular networks with cooperative relays with power adjustmentbetween source and relay nodes, ... types of links formed in cooperative relaying asshown in Figure 1. In cooperative relaying through decode-and-forward, the achievable rate of the link between thesource node and the destination ... in OFDMA networks. However, they did notconsider the nonstationary nature of SNR in determiningthe threshold value for admission control. Also, the networkmodel does not include relaying architectures....
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Báo cáo hóa học: " Research Article Distributed Time Synchronization in Wireless Sensor Networks with Coupled Discrete-Time Oscillators" pptx
... PLLs5can be obtained by introducing aloop filter ε(z), with one or two poles respectively, instead ofthe constant ε in the synchronization s ystem of Figure 7.Forinstance, in the case of a ... v de-creases with increasing D/d and decreasing ε. Along with v,Figure 4 shows the measure of irreducibility (or strong con-nectivit y) σ (15) as dashed lines. It is interesting to note thatthe ... 5). Rayleigh fading is assumed, that is,the fading amplitude Gki in (4) accounts for Rayleigh fading with unit average power. Fading is assumed to be constant forany n during the evolution...
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Báo cáo hóa học: " Research Article Hop-Distance Estimation in Wireless Sensor Networks with Applications to Resources Allocation Liang Zhao and Qilian Liang" pot
... Heidemann, and D. Estrin, “Geogr aphy-informed en-ergy conservation for ad hoc routing,” in Proceedings of the7th Annual International Conference on Mobile Computing andNetworking (MOBICOM ’01), ... Estimation in Wireless Sensor Networks with Applications to Resources AllocationLiang Zhao and Qilian LiangDepartment of Electrical Engineering, University of Texas at Arlington, Arlington, TX ... Societies (INFOCOM’05), vol. 1, pp. 138–149, Miami, Fla, USA, March 2005.[3] A. Caruso, S. Chessa, S. De, and A. Urpi, “GPS free coordinateassignment and routing in wireless sensor networks, ” in Pro-ceedings...
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Báo cáo hóa học: "Research Article Admission Control and Interference Management in Dynamic Spectrum Access Networks" pot
... Pla,“Adaptive admission control in mobile cellular networks with streaming and elastic traffic,” in Proceedings of the 20thInternational Teletraffic Congress (ITC ’07), vol. 4516 of LectureNotes in Computer ... impactof incorporating admission control on the forced termi-nation of SUs and also the impact of deploying channelallocation with preference and repacking on the interference. In Section ... ≤ N)) with λ2 in S5a and S5b.the interference is lower when repacking is used. Note thatthe limiting objective in both systems is Bft2,asPif(n ≤ N)remains below its objective. In other...
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Báo cáo hóa học: " Research Article A Feedback-Based Transmission for Wireless Networks with Energy and Secrecy Constraints" potx
... processingand the system maintenance. The maintenance energyrepresents the “offline” energy cost that is required in orderto maintain the transmitter’s infrastructure (i.e., coolingoperations, control ... the minimumrequired power in order to establish a successful communica-tion with the destination. The combination of this calculated power amount with the constant PA policy proposed in theprevious ... considered the transmission process in clusteredwireless networks with energy and secrecy constraints. Twomain techniques that incorporate the MUD gain with aPA have been investigated. The first approach...
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Báo cáo hóa học: " Research Article Active Sonar Detection in Reverberation via Signal Subspace Extraction Algorithm" pptx
... Space-Time Adaptive Processing,TheInstitution of Electrical Engineers, London, UK, 2004.[12] G. Ginolhac and G. Jourdain, “Detection in presence ofreverberation,” in Proceedings of the MTS/IEEE ... meansechoes with slight time shift or/and Doppler shift) differing in powers.PCI is applied to detection in presence of reverberationby taking reverberation as a sum of echoes with higher power than ... Shenzhen Graduate School, Harbin Institute of Technology, Shenzhen,Guangdong 518055, China2Institute of Acoustics, Chinese Academy of Sciences, Beijing 100190, ChinaCorrespondence should be...
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Báo cáo hóa học: " Research Article Collaborative Area Monitoring Using Wireless Sensor Networks with Stationary and Mobile Nodes" docx
... densities withoutgetting trapped in local minima. Mobile nodes always keepnavigating in the sensor field, passing/sampling throughuncovered regions and improving coverage. Figure 7(a)shows that in ... to as sink in theWSN literature) using multihop communication. In addition, we consider a set E with E=|E| stationarynonoverlapping event sources (sources with nonoverlappingfootprints.) ... and C. G. Panayiotou, “Improving area coverageusing mobility in sensor networks, ” in Proceedings of theInternational Conference on Intelligent Systems And Computing:Theory And Applications...
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Báo cáo hóa học: "Research Article Asymptotic Analysis of Large Cooperative Relay Networks Using Random Matrix Theory" pptx
... gain isobtained by incorporating the source-destination link whenthe channel conditions of the source-destination link arecomparable to those of the relay- destination link and thesource -relay ... source -relay- destination combinations. In [16],large relay networks are investigated without combiningof source-destination and relay- destination signals. In [17],transmit beamforming is analyzed asymptotically ... and relay transmission. Relay nodes are considered in this paper while only beam-forming in point-to-point communication is considered in [17]. Unlike [16], in which only the indirect source -relay- destination...
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Báo cáo hóa học: "Research Article Signal Classification in Fading Channels Using Cyclic Spectral Analysis" ppt
... channels. In [6] the authors investigatedthe use of eighth-order CCs to classify digital signals in aflat fading channel. By employing a multiantenna receiverusing selection combining (SC), ... rendezvous in OFDM-based dynamic spectrumaccess networks, ” in Proceedings of the 2nd IEEE InternationalSymposium on New Frontiers in Dynamic Spectrum Access Networks (DySPAN ’07), pp. 220–231, Dublin, ... Classification performance of proposed initial SOF-based classification stage and benchmark in a faster varying flatfading channel with using the MRC-variant combining scheme.0 5 10 150.50.550.60.650.70.750.80.850.90.951SNR...
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Báo cáo hóa học: "Research Article On Multipath Routing in Multihop Wireless Networks: Security, Performance, and Their Tradeoff" doc
... maximum flow problem in lossy networks. 3.2. A Game Theoretic Interpretation. In this subsection, togain a more in- depth insight of the internal structure of theobtained multipath routing solution, ... number of node-disjointpath between S and T.As a limit of node-disjoint multipath routing, the aboverelationship shows the intrinsic constraint of minimizing rand maximizing a at the same time. ... isrealizable or too stringent by using the above formula beforesearching for the routing solution.7. Multipath Routing with Multiple Attackers In this section, we extend our efforts to investigate the...
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