Báo cáo hóa học: " Research Article Contiguous Frequency-Tim

Báo cáo hóa học: " Research Article Contiguous Frequency-Time Resource Allocation and Scheduling for Wireless OFDMA Systems with QoS Support" pdf

... pages doi:10.1155/2009/134579 Research Article Contiguous Frequency-Time Resource Allocation and Scheduling for Wireless OFDMA Systems with QoS Support I. Guti ´ errez, 1 F. B ader, 2 R. Aquilu ´ e, 1 and J. L. ... multiple access (OFDMA) scheme has been selected as a potential candidate for many emerging broadband wireless access standards. In this paper, a...

Ngày tải lên : 21/06/2014, 23:20

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Báo cáo hóa học: " Research Article Adaptive Channel-Tracking Method and Equalization for MC-CDMA Systems over Rapidly Fading Channel under Colored Noise" doc

... SER and MSE of channel tracking using diﬀerent methods with and without a one-step predictor are compared in Figures 5 and 6, in which the velocity 60 km/hr (f d T = 0.0516) is considered for ... estimation in (19) is in block form, which is not suitable for real- time design in the MC-CDMA communication systems. A recursive parameter estimation for (19)andanestimatefor noise s...

Ngày tải lên : 21/06/2014, 08:20

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Báo cáo hóa học: " Research Article Location-Based Self-Adaptive Routing Algorithm for Wireless Sensor Networks in Home Automation" doc

... four performance metrics for WSNHA-LBAR, LAR, and AODVjr in diﬀerent scenarios. The performance for overhead of WSNHA-LBAR and LAR was better than that of AODVjr when WSNHA-LBAR and LAR maintained ... scenarios. The performances for overhead of WSNHA-LBAR and LAR was better than that of AODVjr when WSNHA-LBAR and LAR maintained a high packet delivery ratio. However, the perf...

Ngày tải lên : 21/06/2014, 05:20

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Báo cáo hóa học: " Research Article Computationally Efﬁcient DOA and Polarization Estimation of Coherent Sources with Linear Electromagnetic Vector-Sensor Array" ppt

... geometry, with 8 dipole- triads uniformly placed along x-axis for estimating u k and 8 dipole-triads uniformly placed along y-axis for estimating v k . For the SUMWE, we use an L-shape geometry, with 12 ... beamforming geolocation for wideband- FFHs with unknown hop-sequences,” IEEE Transactions on Aerospace and Electronic Systems, vol. 37, no. 1, pp. 65–76, 2001. [14] H. J...

Ngày tải lên : 21/06/2014, 05:20

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Báo cáo hóa học: " Research Article Littlewood-Paley g-Functions and Multipliers for the Laguerre Hypergroup" doc

... 2.1. a For k ∈ N and f ∈ L 2 K, there exists C k > 0 such that g k  f   α,2  C k f α,2 . 2.2 b For 1 <p<∞ and f ∈ L p K, there exist positive constants C 1 and C 2 , ... prove Theorem 2.2. a For k ∈ N and f ∈ L 2 K, there exists C k > 0 such that G H k f α,2  C k f α,2 . 2.15 b For 1 <p<∞ and f ∈ L p K, there exist constant...

Ngày tải lên : 21/06/2014, 06:20

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Báo cáo hóa học: "Research Article A High-Accuracy Nonintrusive Networking Testbed for Wireless Sensor Networks" pptx

... protocols, evaluate network performance, and so forth. The more accuracy and more spontaneous the runtime data are, more exactly and more deeply we under- stand wireless sensor networks. However, ... constrained resource, the dynamics of wireless communications, the frequent failures of sensor nodes and the variety of the applications for wireless sensor networks. Some testbe...

Ngày tải lên : 21/06/2014, 17:20

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Báo cáo hóa học: " Research Article Strong Convergence of a New Iteration for a Finite Family of Accretive Operators" pdf

... ty   −  x  t 2.1 exists for each x, y ∈ U, where U  {x ∈ E : x  1}. The norm of E is uniformly Gateaux diﬀerentiable if for each y ∈ U, the limit is attained uniformly for x ∈ U. The norm of E is uniformly ... Theory and Applications 3 where S r n : a 0 I  a 1 J 1 r n  ···  a N J N r n with J i r n I  r n A i  −1 , for i  0, 1, 2, , N, a i ∈ 0, 1 and  N i...

Ngày tải lên : 21/06/2014, 20:20

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Báo cáo hóa học: "Research Article Auction-Based Resource Allocation for Cooperative Video Transmission Protocols over Wireless Networks" ppt

... complexity for coordination for resource allocation. The optimization in (16)isperformed, and resource allocation parameters (such as bandwidth and power) are sent back to the source and relay. ... transmission with side information, we have obtained up to 4 dB gain over the amplify -and- forward or decode -and- forward protocols. For the multiuser case, we concentrate on...

Ngày tải lên : 21/06/2014, 20:20

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Báo cáo hóa học: " Research Article Existence of Pseudo Almost Automorphic Solutions for the Heat Equation with Sp -Pseudo Almost Automorphic Coefﬁcients" docx

... gσ,φ 1 σ ∈ K for each σ ∈ R. Now from the uniform continuity of F b on bounded subsets of X, it obviously follows that F b is uniformly continuous on K uniformly for each t ∈ R. Therefore for every ... DA and X. In contrast with the fractional power spaces considered in some recent papers by Diagana 13, the interpolation and H ¨ older spaces, for instance, depend only on...

Ngày tải lên : 21/06/2014, 20:20

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Báo cáo hóa học: " Research Article A Two-Microphone Noise Reduction System for Cochlear Implant Users with Nearby Microphones—Part I: Signal Processing Algorithm Design and Development" pot

... ﬂexible, and computationally inexpensive two-microphone noise reduction systems. It is our aim to show that such systems are realistic and provide a substantial beneﬁt for cochlear implant users and ... Signal Processing Volume 2008, Article ID 647502, 9 pages doi:10.1155/2008/647502 Research Article A Two-Microphone Noise Reduction System for Cochlear Implant Users with...

Ngày tải lên : 21/06/2014, 22:20

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