Báo cáo hóa học: " Adaptive antenna selection and Tx/Rx beamforming for large-scale MIMO systems in 60 GHz channels" pptx

... Rx n t Ă 1 2 N t Ă 1 n r Ă 1 2 N r Ă s r Antenna selection & Beamforming Antenna selection & Beamforming Feedback H Figure 2 A 60 GHz MIMO system employing antenna selection and transmit/receive beamforming. Dong et ... article as: Dong et al.: Adaptive antenna selection and Tx/Rx beamforming for large-scale MIMO systems in 60 GHz ch...

Ngày tải lên: 21/06/2014, 01:20

... transmit antennas are linear independent with others within a time slot.) For the detection in underdetermined MIMO systems, various techniques can be considered. Instead of exhaustive searching for ... Detection for Underdetermined MIMO Systems Lin Bai, 1 Chen Chen, 2 and Jinho Choi 1 1 School of Engineering, Swansea University, Swansea SA2 8PP, UK 2 School of Electronics E...

Ngày tải lên: 21/06/2014, 11:20

... Grimaldi LM: Increased plasma levels of interleukin-1, interleukin-6 and alpha-1-antichymotrypsin in patients with Alzheimer's disease: peripheral inflammation or signals from the brain? Journal ... neurotrophin- induced neurite outgrowth in the CNS in vitro, using organotypic brain and spinal cord slice cultures. The present study shows that surprisingly, IL-1β did not abr...

Ngày tải lên: 19/06/2014, 22:20

... real q-uniformly smooth Banach space, r 1 , r 2 >0,andlet T: E ® E be a nonlinear mapping. For any given points x 0 , y 0 Î E, define sequences {x n } and {y n }inE by the following algorithm:  y n =(1−β n )x n + ... q-uniformly smooth Banach space, and A 1 , A 2 , M 1 and M 2 be the same as in Theorem 3.5, and let T be a -Lipschitz continuous mapping. Assume that Ω ∩ F(T) ≠...

Ngày tải lên: 21/06/2014, 00:20

... each of the 40 distinc t indi- viduals. For this database also, 30% image samples per class are chosen randomly, a nd are u sed for training and the remaining images for test. In the ORL database, images ... class are chosen randomly and are use d for training, and the remaining images for te st. The proposed approach has also been applie d on the ORL database [24], which co...

Ngày tải lên: 21/06/2014, 00:20

... the initial guess x 0 is taken in C arbitrarily, and {a n } and {b n } are sequences in the interval [0, 1]. In 2011, Khan and Abbas [22] modified (1.1) and (1.2) for two nonexpansive map- pings ... theorems for new nonlinear mappings in a Hilbert spaces. J Nonlinear Convex Anal. 11, 79–88 (2010) 17. Takahashi, W, Yao, JC: Fixed point theorems and ergodic theorems for...

Ngày tải lên: 21/06/2014, 00:20

... the information set and the compensation set.Given asetofcoefficientsforthetonesintheinformationset, coefficients are chosen for tones in the compensation set, so that the peak value of the combined ... overhead involved in setting up and t hen performing the information transmission. Both of these are avoided in tone reservation. However, tone reservation exhibits a tradeoff between t...

Ngày tải lên: 21/06/2014, 05:20

... CFO and channel for the uplink of multiuser MIMO- OFDM systems in frequency selective fading channels. An asymptotic Cramer- Rao bound for joint CFO and channel estimation in the uplink of MIMO- Orthogonal ... derived in [14] and training strategies that minimize the asymptotic CRB were studied. In [15], a reduced-complexity CFO and channel estimator was proposed for...

Ngày tải lên: 21/06/2014, 05:20

... this formula and are indicated and compared in Figure 5. In both RTA and furnace annealing samples, we can see that when Si concentration increases, Si grain size which is calculated from formula ... Science and Engineering: B 2009, 159- 160: 355- 360. 18. Nakashima S, Harima H: Raman investigation of SiC polytypes. Physica Status Solidi (A) Applied Research 1997, 162(1):39-64. 1...

Ngày tải lên: 21/06/2014, 05:20

... pp. 588–611, 2010. 17 D. J. Guo and V. Lakshmikantham, Nonlinear Problems in Abstract Cones, vol. 5 of Notes and Reports in Mathematics in Science and Engineering, Academic Press, Boston, Mass, ... χu μ t for t ∈ 0, 1. We assert that χ ≥ 1. Suppose on the contrary that 0 < χ<1. Since T λ is a θ-concave increasing operator and for given u ∈ ◦ P, T λ u is strictly...

Ngày tải lên: 21/06/2014, 11:20