báo cáo hóa học:" Optimized spectrum sensing algorithms for cognitive LTE femtocells" docx

... article, spectrum sensing is performed for an LTE signal in two stages; a coarse stage and a fine stage. Analgorithmisproposedthatusesthewaveletpacket transform algorithm to perform the coarse sensing ... survey of spectrum sensing algorithms for cognitive radio applications. IEEE Commun Surv Tutor. 11(1), 116–130 (2009) 18. Y Youn, H Jeon, J Hwan Choi, H Lee, Fast spectr...

Ngày tải lên: 20/06/2014, 20:20

... Applications Volume 2011, Article ID 915629, 17 pages doi:10.1155/2011/915629 Research Article Iterative Algorithms for Finding Common Solutions to Variational Inclusion Equilibrium and Fixed Point Problems J. ... for equilibrium problem variational inclusion and fixed point problem,” Applied Mathematics and Mechanics, vol. 31, no. 7, pp. 917–928, 2010. 11 S S. Z hang, J. H. W. Lee, an...

Ngày tải lên: 21/06/2014, 11:20

... 7. Notation:( ·) H is reserved for the matrix Hermitian, (·) −1 for the matrix inverse, ( ·) T for the matrix (vector) transpose, ( ·) ∗ for the complex conjugate, for the Kronecker product, tr {·} for the trace ... performance among the tested estimators, but it requires more knowledge about the channel. For channels with uniform PDP or a lower number of taps, the SSLS estimator...

Ngày tải lên: 21/06/2014, 11:20

... only, which is equivalent to performing energy detection. Detector performance is maximized for asmallN b value, which implies that performance can be maximized for a limited hardware complexity. ... scenarios for the demonstrator,” August 2007, http://www.ist-oracle.org/. [23] S. Shellhammer, Spectrum sensing in IEEE802.22,” in Pro- ceedings of the 1st IAPR Workshop on Cognitive I...

Ngày tải lên: 21/06/2014, 11:20

... PGI signs. The optimized model of PGIS configuration is based on the real parking supply and demand conditions to display optimized parking infor- mation on VMS to influence the performance of parking system ... the former two, every step in GA makes full use of available status to guide the search procedure, in order to pass on the good informa- tion to the offspring as well as to elimin...

Ngày tải lên: 20/06/2014, 22:20

... 2011:32 http://jwcn.eurasipjournals.com/content/2011/1/32 Page 4 of 11 outperform Leith-Clifford and Gibbs, especially for moderately connected topologies. Performance of Leith- Clifford deteriorates compared with the gradient-based algorithms when high ... that Leith-Clifford and Gibbs significantly underperform the rest, for example, at interference radius equal to 0.5852. For this...

Ngày tải lên: 21/06/2014, 02:20

... TBCS outperforms the original BCS and MBCS algorithms at each iteration for different similarity levels. We also choose IEEE802.15a [26] UWB echo signals for performance simulation. For the same ... signal reconstructions for different tasks cannot be performed until all measurements are collected. Note that this technical assumption is only for deriving the algorithm for informat...

Ngày tải lên: 21/06/2014, 05:20

... of uniformly smooth spaces are the Lebesgue L p , the sequence  p , and Sobolev W m p spaces for 1 <p<∞. In particular, for 1 <p≤ 2, these spaces are p- uniformly smooth and for 2 ≤ ... be a p-uniformly smooth Banach space T : X → 2 X , a multivalued generalized Φ-hemiaccretive and bounded mapping. For any given f ∈ X, define S : X → 2 X by Sx : x−Txf for all x ∈ X. For...

Ngày tải lên: 21/06/2014, 11:20

... of uniformly smooth spaces are the Lebesgue L p , the sequence  p , and Sobolev W m p spaces for 1 <p<∞. In particular, for 1 <p≤ 2, these spaces are p- uniformly smooth and for 2 ≤ ... Let X be a uniformly smooth Banach space and T : X → 2 X a generalized Φ- hemiaccretive with bounded range. For any given f ∈ X, define S : X → 2 X by Sx : x − Tx  f for all x ∈ X. For a...

Ngày tải lên: 21/06/2014, 11:20

... performance via simu- lation. L. Bao and S. Liao’s paper addresses the spectrum scarcity problem caused by the unbalanced utilization of radio frequency bands in the current state of w ireless spectrum allocations. ... spectrum allocations. The paper presents a spectrum- access scheduling to improve the spectrum utilization efficiency in hetero- geneous wireless systems. Their simulati...

Ngày tải lên: 21/06/2014, 11:20