Báo cáo hóa học: " Research Article Eigenstructures of MIMO

Báo cáo hóa học: " Research Article Eigenstructures of MIMO Fading Channel Correlation Matrices and Optimum Linear Precoding Designs for Maximum Ergodic Capacity" pdf

... Processing Volume 2007, Article ID 29749, 9 pages doi:10.1155/2007/29749 Research Article Eigenstructures of MIMO Fading Channel Correlation Matrices and Optimum Linear Precoding Designs for Maximum Ergodic ... frequency-selective fading channel with L eﬀective paths in terms of channel correlation matrices. Furthermore, we analyze the eﬀects of...

Ngày tải lên : 22/06/2014, 19:20

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Báo cáo hóa học: " Research Article Implementation of a Cooperative MAC Protocol: Performance and Challenges in a Real Environment" doc

... Communications and Networking Channel access delay for slow station Channel access delay for fast station Time TX of 1 Mbps station TX of 11 Mbps station DIFS + backoff Channel captured by fast station Channel ... only consists of 1 transmitter, 1 helper, and 1 receiver, is ﬁrst used to develop a basic understanding of the implication of coop- eration, and establi...

Ngày tải lên : 21/06/2014, 20:20

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Báo cáo hóa học: "Research Article Reconstruction of Sensory Stimuli Encoded with Integrate-and-Fire Neurons with Random Thresholds" pptx

... function derivatives. In the RKHS of bandlimited functions, the inner-product formulation of the t-transform is straightforward because of the simple structure of the inner-product in these space ... line for S 1 and green line for S 2 . Figure 6 examines how the maximum SNR and the optimal value for the smoothing parameter that attains this maximum depend on the noise l...

Ngày tải lên : 21/06/2014, 20:20

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Báo cáo hóa học: " Research Article Throughput of Cellular Systems with Conferencing Mobiles and Cooperative Base Stations" pot

... [13, 15], respectively, and decode -and- forward in [14], and the respective merits of multicell processing and MS cooperative transmission technologies, and combinations thereof, were discussed. ... assumption, each set of M active MSs uses both the conferencing channels and the uplink channels for a fraction 1/J of the time. In the following, we focus on a speciﬁc set of...

Ngày tải lên : 21/06/2014, 22:20

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Báo cáo hóa học: " Research Article Effects of Carrier Frequency Offset, Timing Offset, and Channel Spread Factor on the Performance of Hexagonal Multicarrier Modulation Systems" doc

... pages doi:10.1155/2009/802425 Research Article Effects of Carrier Frequency Offset, Timing Offset, and Channel Spread Factor on the Perfor mance of Hexagonal Multicarrier Modulation Systems KuiXuandYuehongShen Institute of ... suppression, and there is also an SINR gap between HMM and CP-OFDM about 4 ∼ 8dB at SNR = 30 dB and CFO in the range of −0.5 ∼ 0.5. Eﬀects of bo...

Ngày tải lên : 21/06/2014, 22:20

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Báo cáo hóa học: " Research Article Subsolutions of Elliptic Operators in Divergence Form and Application to Two-Phase Free Boundary Problems" pdf

... nondivergence form and Ferrari [6] a class of fully non- linear operators F(D 2 u,x), H ¨ older continuous in the space variable. The important case of linear or semilinear operators in divergence form ... 2007, Article ID 57049, 21 pages doi:10.1155/2007/57049 Research Article Subsolutions of Elliptic Operators in Divergence Form and Application to Two-Phase Free Boundary...

Ngày tải lên : 22/06/2014, 22:20

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Báo cáo hóa học: " Research Article Characteristics of MIMO-OFDM Channels in Indoor Environments" pdf

... operation. For each of 117 OFDM subcarriers, the complex correlation coeﬃ- cients of each pair of the 16 MIMO subchannels (e.g., between Tx1-Rx1 channel and Tx1-Rx2 channel) are derived andanalyzedinthissection. A ... ANALYSIS 4.1. Measured MIMO- OFDM channels Figure 3 shows an example of measured MIMO- OFDM channels. Sets of MIMO- OFDM channels obtained at eight 8 E...

Ngày tải lên : 22/06/2014, 22:20

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Báo cáo hóa học: " Research Article Measurements of MIMO Indoor Channels at 1800 MHz with Multiple Indoor and Outdoor Base Stations" docx

... Communications and Networking Volume 2007, Article ID 28073, 10 pages doi:10.1155/2007/28073 Research Article Measurements of MIMO Indoor Channels at 1800 MHz with Multiple Indoor and Outdoor Base ... consider an N Tx × N Rx MIMO system, N Tx being the number of transmit antennas and N Rx the number of re- ceive antennas. The input-output relationship for a narrow- ban...

Ngày tải lên : 22/06/2014, 22:20

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Báo cáo hóa học: " Research Article Multi-Satellite MIMO Communications at Ku-Band and Above: Investigations on Spatial " pot

... due to the distributed na- ture of the system. Therefore, from the standard MIMO the- ory, the following well-known formula for the capacity (in bps/Hz) of MIMO channels is adopted [19, 20]: C = ... illustration, for UIP = 0.001%, the interference mitigation obtained is 0.67 dB at the Ka-band and for a 99.9% availability, 1.60 dB at the Ku-band and for a 99.99% availabilit...

Ngày tải lên : 22/06/2014, 19:20

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Báo cáo hóa học: "Research Article µ-Stability of Impulsive Neural Networks with Unbounded Time-Varying Delays and Continuously Distributed Delays" doc

... Yin 1, 2 and Xilin Fu 3 1 School of Management and Economics, Shandong Normal University, Jinan 250014, China 2 School of Science, University of Jinan, Jinan 250022, China 3 School of Mathematical ... various engineering, biological, and economical systems, and they may cause instability and poor performance of practical systems. Therefore, the stability analysis for neu...

Ngày tải lên : 21/06/2014, 05:20

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