Báo cáo hóa học: " Research Article Code Design for Multihop Wireless Relay Networks" pptx

... on Advances in Signal Processing Volume 2008, Article ID 457307, 12 pages doi:10.1155/2008/457307 Research Article Code Design for Multihop Wireless Relay Networks Fr ´ ed ´ erique Oggier and Babak ... nodes are used for one hop. We address the problem of code design when relay nodes may be used for more than one hop. We consider as a protocol a more elaborated ver...

Ngày tải lên: 22/06/2014, 19:20

... unaffordable computational complexity for high-order constellations. To overcome such a problem, a second design method based on a rhombic transformation of a fixed alphabet of order K is proposed. It performs the optimization ... 2006. [4]D.P.Palomar,J.M.Cioffi, and M. A. Lagunas, “Joint Tx- Rx beamforming design for multicarrier MIMO channels: a unified framework for convex optimizatio...

Ngày tải lên: 21/06/2014, 08:20

... Corporation EURASIP Journal on Wireless Communications and Networking Volume 2010, Article ID 526429, 8 pages doi:10.1155/2010/526429 Research Article Cyclostationarity Detectors for Cogn itive Radio: Architectural ... only, which is equivalent to performing energy detection. Detector performance is maximized for asmallN b value, which implies that performance can be maximized fo...

Ngày tải lên: 21/06/2014, 11:20

... Corporation EURASIP Journal on Wireless Communications and Networking Volume 2010, Article ID 186182, 6 pages doi:10.1155/2010/186182 Research Article Channel Estimation for Two-Way Relay OFDM Networks Weiwei ... training sequences. We compare both MSE performance as well as symbol error rate (SER) performance for two-way relay OFDM networks. Figure 1 shows the MSE performance...

Ngày tải lên: 21/06/2014, 17:20

... Corporation EURASIP Journal on Wireless Communications and Networking Volume 2010, Article ID 817961, 14 pages doi:10.1155/2010/817961 Research Article Adaptive Power Allocation in Wireless Sensor Networks ... proposed design gives recon- struction distortion which is less than that achieved by the uniform power allocation. This superior performance originates from the reason that...

Ngày tải lên: 21/06/2014, 17:20

... theorems for the relay channel,” IEEE Transactions on Information Theory, vol. 25, no. 5, pp. 572–584, 1979. [5] A. Høst-Madsen and J. Zhang, “Capacity bounds and power allocation for wireless relay ... Corporation EURASIP Journal on Wireless Communications and Networking Volume 2010, Article ID 792410, 13 pages doi:10.1155/2010/792410 Research Article Resource Allocation f...

Ngày tải lên: 21/06/2014, 18:20

... to improving the data relaying throughput across the neighboring clusters, NCIC performs substantially well over TIC. Therefore, NCIC is more suitable than TIC, since the relaying throughput is taken ... compare the performances of the Hindawi Publishing Corporation EURASIP Journal on Advances in Signal Processing Volume 2009, Article ID 141097, 11 pages doi:10.1155/2009/141097 Research...

Ngày tải lên: 21/06/2014, 20:20

... j)∗/ 2: C = G 3: for each mobile sensor m ∈ M 4: for each zooming step z x , x = 1, , κ 5: for each segment q s , s = 1, ,4∈ Z x /∗ each segment has L/2 z x ×L/2 z x cells ∗/ 6: for each cell (i, ... ≤ 1 is the “forgetting” factor. This factor can be used to account for the physics involved with the phenomena of the events that are being monitored. For example, it can account for...

Ngày tải lên: 21/06/2014, 22:20

... large wireless networks. A performance upper bound is derived, the performance in the low signal-to-noise-ratio regime is analyzed, and two approximations are obtained for high and low relay- to-destination ... +1, (A.5) m  C(z) z  =− z, (A.6) C  −m(z)  =−zm(z), (A.7) Λ(z) =− m  z −1  z . (A.8) Note that we use subscripts to indicate the matrix for which the generating functions...

Ngày tải lên: 21/06/2014, 22:20

... Corporation EURASIP Journal on Wireless Communications and Networking Volume 2009, Article ID 989062, 13 pages doi:10.1155/2009/989062 Research Article LTE Adaptation for Mobile Broadband Satellite ... reads a block of coded bits from the buffer, starting from the bit index specified by a chosen RV. For a desired code rate of operation, the number of coded bits N data to be select...

Ngày tải lên: 21/06/2014, 23:20