Báo cáo hóa học: " Research Article Ring-Based Optimal-Level Distributed Wavelet Transform with Arbitrary Filter Length for Wireless Sensor Networks" pptx

... Processing Volume 2008, Article ID 396126, 11 pages doi:10.1155/2008/396126 Research Article Ring-Based Optimal-Level Distributed Wavelet Transform with Arbitrary Filter Length for Wireless Sensor Networks Siwang ... by Huaiyu Dai We propose an optimal-level distributed transform for wavelet- based spatiotemporal data compression in wireless sensor n...

Ngày tải lên: 22/06/2014, 19:20

... “Performance analysis of IEEE 802.15.4 and ZigBee for large-scale wireless sensor network applications,” in Proceedings of the 3rd ACM International Workshop on Per- formance Evaluation of Wireless ... Wireless Communications and Networking Volume 2010, Article ID 878412, 22 pages doi:10.1155/2010/878412 Research Article Energy-Efficient Reservation-Based Medium Access Control...

Ngày tải lên: 21/06/2014, 11:20

... on Wireless Communications and Networking Volume 2011, Article ID 695171, 12 pages doi:10.1155/2011/695171 Research Article Broadcast Secrecy via Key-Chain-Based Encrypt ion in Single-Hop Wireless ... single-hop wireless sensor network. Our contributions are three-fold: first, we propose the use of time-varying keys (based on a key-chain) for broadcast encryp tion, emphasising...

Ngày tải lên: 21/06/2014, 11:20

... T mul + T a 1/(N − 1) (N − 1)T 7L + N for long length N.InFigure 13, we have illustrated the variation of the number of ROM words with respect to the transform length N when L = 10. Also, in Figure ... sine transform with increased accuracy,” Electronics Letters, vol. 29, no. 22, pp. 1918–1920, 1993. [9]Y.S.ParkandH.W.Park, Arbitrary- ratioimageresiz- ing using fast DCT of compo...

Ngày tải lên: 21/06/2014, 07:20

... network performance with or without channel width adaptation. Specifically, four cases are investigated: Multi-path routing combined with Fixed-width Channels (MP-FC), Multi- path routing with channel ... the total useful throughput for the four cases across ten randomly generated topologies.Aswecanexpect,SP-FCusuallyperformsworst while MP-WA always performs best. And for the cases o...

Ngày tải lên: 21/06/2014, 23:20

... explicit formula for the scalar flux as a function of the radius for a general family of paths. We then demonstrate the use of this formula for the mini- mization of the maximum flux with a two-parameter ... networks exist with different unique characteristics. For example, wireless sensor networks are networks designed to collect some information from a given area and to deliver...

Ngày tải lên: 22/06/2014, 19:20

... 802.15.4 sensor network based on these two platforms can successfully transmit all the sensor data within a short time. The four metrics presented in Section 4 are used to eva luate the network performance: ... simulation abstractions for wireless sensor network mac protocols. EURASIP J Wirel Commun Netw. 2010, 24:1–24:2 (2010) 2. G Sachdeva, R Dömer, P Chou, System modeling: a case...

Ngày tải lên: 20/06/2014, 22:20

... Difference Equations 13 K ρ is an arbitrary open ball of radius ρ with center at x 0 ,andQ ρ is an arbitrary cylinder of the form K ρ × t 0 − ρ 2 , t 0 .K 2ρ is concentric with K ρ . Ω ρ : K ρ ∩ Ω. In ... 15 derivatives with respect to x. It is possible to divide Γ into a finite number of pieces and introduce for each of them coordinates y see 11, Chapter 3, Section 16. There...

Ngày tải lên: 21/06/2014, 05:20

... Corporation Boundary Value Problems Volume 2011, Article ID 475126, 17 pages doi:10.1155/2011/475126 Research Article Existence of Positive Solutions to a Boundary Value Problem for a Delayed Nonlinear Fractional Differential ... has been done for fractional differential equations with delays. Therefore, in this paper, we consider a boundary value problem of a general delayed nonli...

Ngày tải lên: 21/06/2014, 05:20

... IHMPT for the signal Figure 2: Results of the numerical example. 3. Principle of IHMPT 3.1. The High-Order Matched Phase Transform (HMPT). Consider the discrete form of monocomponent CPS with ... Processing Volume 2011, Article ID 425203, 9 pages doi:10.1155/2011/425203 Research Article ISAR Imaging of Ship Target with Complex Motion Based on New Approach of Parameters Estimatio...

Ngày tải lên: 21/06/2014, 05:20