Báo cáo hóa học: " A Low-Complexity KL Expansion-Based Channel Estimator for OFDM Systems" pptx

... symbols, which are used to modulate the different data carrying sub- carriers. Each OFDM data symbol in the OFDM data field employs N S = 64 subcarriers, 48 of which are used for data symbols and 4 for pilot ... by a CP or GI, which contains the last N C samples of the OFDM data symbol. The signal field contains the information including the transmission data rate and data length of...

Ngày tải lên: 23/06/2014, 01:20

... semilinear elliptic equations, SIAM Review 24 (1982), no. 4, 441–467. [6] D. O’Regan and H. Wang, Positive solutions for p-laplacian systems in a ball, in preparation. Haiyan Wang 5 Lemma 2.3 [7, ... that (1.1), for a fixed R>0, has a nontrivial solution for sublinear nonlinearities. Related results can also be found in [1]. In this paper we investigate the effect of the size of...

Ngày tải lên: 22/06/2014, 22:20

... actual channel statistics and SNR may vary within OFDM block, we have also analyzed the effect of modelling mismatch on the estimator performance and shown both analytically and through simulations ... σ 2 C −1 h  −1 F †  Y. (7) Low-Complexity KL Expansion-Based Channel Estimator for OFDM 167 3.5. Performance analysis We turn our attention to analytical perfor mance resul...

Ngày tải lên: 23/06/2014, 00:20

... of Human Science, University of Bergamo, Piazzale S. Agostino 2, I-24129 Bergamo, Italy Email: Francesca Morganti* - francesca.morganti@auxologico.it; Andrea Gaggioli - andrea.gaggioli@auxologico.it; ... 38:820-836. 21. Tirassa M, Carassa A, Geminiani G: A theoretical framework for the study of spatial cognition. In Spatial Cognition Edited by: O'Nuallain S. Amsterdam: Benjamins; 2...

Ngày tải lên: 19/06/2014, 10:20

... "La Sapienza", Roma, Italy Email: Ivan Bernabucci* - i.bernabucci@uniroma3.it; Silvia Conforto - conforto@uniroma3.it; Marco Capozza - neri.accornero@uniroma1.it; Neri Accornero - neri.accornero@uniroma1.it; ... minimum vari- ance rule, able to attain physiological kinematic results as Fitt's Law and 2/3 Power Law [16]. Some authors [17,18] tried to provide a mathematical ex...

Ngày tải lên: 19/06/2014, 10:20

... about typical shape and image data characteristics. But, manual segmentation is a very time-consuming process for the already increasing amount of medical images. As a result, reliable automatic methods ... (2004) 4. D Martin, C Fowlkes, D Tal, J Malik, A database of human segmented natural images and its application to evaluating segmentation algorithms and measuring ecological stati...

Ngày tải lên: 20/06/2014, 04:20

... the association of variables, such as patient age and inpatient residence, against patient outcome, in order to quantify significant relationships; facilitating the evaluation of management strategies ... al: “Dominance of EMRSA-15 and -16 among MRSA causing nosocomial bacteraemia in the UK: analysis of isolates from the European Antimicrobial Resistance Surveillance System (EARSS)”. J Antimi...

Ngày tải lên: 20/06/2014, 04:20

... the result of advective-diffusive equation for concentrations and the Darcy flow equation. The more popular approach in application so far has been based on the mixed formulation. In a previous ... mathematically viable, and we also believe it may be practically useful. It generalizes and encompasses all the success- ful elements described in [2,6] and [5]. Optimal error estimate are obta...

Ngày tải lên: 20/06/2014, 22:20

... (NOD) ran- dom variables and negatively associated (NA) [2] random variables are the most important and special cases of pairwise NQD random variables. So, it is very significant to study probabilistic ... study and performed the analysis. QZ participated in its design and coordination. All authors read and approved the final manuscript. Competing interests The authors declare that they have...

Ngày tải lên: 20/06/2014, 22:20

... before proceeding to transmit, then an ( H + P)/R amount of time to for an interface to transmit a packet consisting of H header and trailer bits and P pay- load bits at a data rate R,thenaτ amount ... becoming increasingly important. Performance sensitive traffic such as voice and video applications require stringent delayconstraintswhiledatapacketsofafiletransfer application, for ex...

Ngày tải lên: 20/06/2014, 22:20