Báo cáo hóa học: " Research Article Combined Rate and Power Allocation with Link Scheduling in Wireless Data Packet Relay Networks with Fading Channels" pptx
Báo cáo hóa học: " Research Article Combined Rate and Power Allocation with Link Scheduling in Wireless Data Packet Relay Networks with Fading Channels" pptx
... pagesdoi:10.1155/2007/24695 Research Article Combined Rate and Power Allocation with Link Scheduling in Wireless Data Packet Relay Networks with Fading ChannelsMinyi Huang1, 2 and Subhrakanti Dey21Department of Information ... two-hop relay problemwhere the source and relay each contains a buffer. In this paper, we consider joint rate and power control in a wireless data packet relay model. Such relay- based packet data ... 2007Recommended by Lin CaiWe consider a joint rate and power control problem in a wireless data traffic relay network with fading channels. The optimizationproblem is formulated in terms of power and rate selection,...
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Báo cáo hóa học: " Research Article Automatic Detection and Recognition of Tonal Bird Sounds in Noisy Environments" pot
... training and testing noisy condi-tions. The proposed tonal-based features obtained recogni-tion accuracy that is very close to the accuracy obtained whenusing the matched training and testing ... Advances in Signal Processing and reported only small differences in performance. The useof support vector machines was presented in [9] and neuralnetwork classifiers employing wavelets in [10], ... Mel-frequency cepstral coefficients, in both standard and noise-compensated models, and strongrobustness to mismatch between the training and testing conditions.1. IntroductionIdentification of birds,...
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Báo cáo hóa học: " Research Article Feature-Based Image Comparison for Semantic Neighbor Selection in Resource-Constrained Visual Sensor Networks" doc
... content. And we will examine 10combinations of feature detectors and descriptors, includingthe detectors used in SIFT and SURF, wavelet-based detector,Harris detector and the descriptors used in ... sensor networks: sensornetwork protocols,” in Proceedings of the 8th AnnualInternational Conference on Mobile Computing and Networking(MobiCom ’02), 2002.[6] C. Harris and M. Stephens, “A combined ... in computer vision, imaging,embedded computing, and sensor networks, Visual Sensor Networks (VSNs) emerge as a cross-disciplinary research field and are attracting more and more attention. A VSNis...
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báo cáo hóa học:" Research Article Diversity-Enabled and Power-Efficient Transceiver Designs for Peak-Power-Limited SIMO-OFDM Systems" potx
... thus conflicting metrics that mustbe balanced. There has been extensive research on improv-ing the transmission power efficiency with constraints onnonlinear distortions in single-input single-output ... perspective,the joint MRC and clipping mitigation method has lowercomplexity than PWLS and optimal clipping schemes. In addition, it can achieve better coding gain, which will beshown in the following section.8 ... example, coding [22],selected mapping [23], and tone reservation [5]. They canbe combined with PWLS and improve the coding gain at thecost of implementation complexity, spectral efficiency and/ orreceiver-side...
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Báo cáo hóa học: "Research Article Segmentation, Reconstruction, and Analysis of Blood Thrombus Formation in 3D 2-Photon Microscopy Images" pot
... and P. R. Bergstresser,“Mining biomedical images with density-based clustering,” in Proceedings of International Conference on InformationTechnology: Coding and Computing (ITCC ’05), vol. 1, ... spatial databases with noise,” in Proceedings of the 2nd International Conferenceon Knowledge Discovery and Data Mining (KDD ’96), pp. 226–231, Portland, Ore, USA, 1996.[20] E. R. Dougherty, An Introduction ... C. Xie, Y. Zhu, C. Li, and J. Chen, “Function basedmedical image clustering analysis and research, ” Advances in Computer, Information, and Syste m s Sciences, and Engineering,pp. 149–155, 2006.[16]...
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Báo cáo hóa học: " Research Article An 802.11k Compliant Framework for Cooperative Handoff in Wireless Networks" docx
... Bejerano, S. Han, and L. Li, “Fairness and load balancing in wireless lans using association control,” in Proceedings ofthe Annual International Conference on Mobile Computing and Networking (MOBICOM ... Shin, A. G. Forte, A. S. Rawat, and H. Schulzrinne, “Reduc-ing MAC layer handoff latency in IEEE 802.11 wireless LANs,” in Proceedings of the 2nd International Workshop on MobilityManagement and ... Mishra, M. Shin, and W. Arbaugh, “Context caching usingneighbor graphs for fast handoffs in a wireless network,” in Proceedings of the Annual Joint Conference of the IEEEComputer and Communications...
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Báo cáo hóa học: "Research Article Achievable Rates and Resource Allocation Strategies for Imperfectly Known Fading Relay Channels" doc
... strategies in three resource allocation problems: (1) power allocation between data and training symbols, (2)time/bandwidth allocation to the relay, and (3) power allocation between the source and relay ... source and relay can be combined rather than stored separately. In certain cases, source and relay are subject to a total power constraint. Here, we introduce the power allocation coefficient θ and ... training and data transmission phases is provided in the following section.3. Network Training and Data Transmission3.1. Network Training Phase. Each block transmission starts with the training...
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Báo cáo hóa học: " Research Article Exploring Landmark Placement Strategies for Topology-Based Localization in Wireless Sensor Networks" pot
... De, and A. Urpi, “GPS free coordinateassignment and routing in wireless sensor networks, ” in Proceedings of the 24th Annual Joint Conference of the IEEEComputer and Communications Societies (INFOCOM ... Amorim, D.Symplot-Ryl, and S. Fdida, “JuMPS: enhancing hop-countpositioning in sensor networks using multiple coordinates,” toappear in Ad Hoc and Sensor Wireless Networks Journal.[17] A. ... and Y. Viniotis, “Routing in Wireless Self-Organizing Networks, ”Taylor and Francis Group, LLC, to appear.[4] M. Mauve, J. Widmer, and H. Hartenstein, “A survey onposition-based routing in mobile...
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Báo cáo hóa học: " Research Article An Energy-Efficient Framework for Multirate Query in Wireless Sensor Networks" pptx
... Krishnamachari and J. Ahn, “Optimizing data replicationfor expanding ring-based queries in wireless sensor networks, ” in Proceedings of the 4th International Symposium on Model-ing and Optimization in ... sinknode and performed inside the network, such as eliminat-ing irrelevant records and aggregating raw data, which is re-ferred to as in- network data processing and data aggrega-tion. Since ... adopting data aggregation to reduce data transmission, using data replicas to shorten the data deliverypath.Inamultiratequerysystem,adatasourceservingmul-tiple sink nodes with queries demanding...
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Báo cáo hóa học: " Research Article Energy-Efficient Transmission of Wavelet-Based Images in Wireless Sensor Networks" pdf
... the packet header are used by the des-tination node to store the data in sequence before decoding and playing out the image. The destination node substituteszero for missing data due to lost packets. ... thesink P0 and P1,andP2is lost, we obtain a PSNR of 36.74 dB. In the same way, that is, with the same test image and DWTlevels, we obtain a P1of 13 packets (3042 bytes of data) with the ... improve our proposal, research- ing new and better strategies. We will integrate the semi-reliable transmission protocol with existing routing proto-cols and multipath algorithms, and we will propose...
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