[PDF] Top 20 eve cccavalcante an analytical

... obtain analytical closed- form expressions for the ergodic capacity, especially in cor- related MIMO fading channels, is still a great challenge due to difficulty in manipulating the non-Gaussian joint channel ... See full document

... itself an important problem, namely, the Space Division Multiple Access (SDMA) grouping ...is an integer and usually non-linear, non-convex optimization ...as an integer quadratic optimization ... See full document

... In a previous work [7] we have proposed an algorithm for source separation based on probability density function (pdf) estimation, called fitting pdf (FP) algorithm, that uses the e[r] ... See full document

... The simulation was carried out for a MIMO-OFDM system with 1024 subcarriers and a cyclic prefix with 20 samples. The payload was chosen to be 128 bits (120 data bits + 8 bits for error detection using cyclic redundancy ... See full document

... demands an a priori knowledge about the uplink channel covariance matrix (UCCM), while LCMV needs a previous estimation of the angle or direction of arrival (DOA) of the desired ... See full document

... Considering our system model, the incoming signal arriving at the receiver is the superposition of an interfering signal from co-channel with different power levels and the desired signal. A receiving architecture ... See full document

... The algorithm has an appealing simple implementation, differently of others techniques. The main drawback concerns the initialization points, which can lead to some divergence. We hope we will find a criterion for ... See full document

... We assume a single-cell system where one base station can transmit to I mobile users. As an Orthogonal Frequency Multiple Access (OFDMA) system, the cell sprectum W is splitted into a set of N subcarriers. The ... See full document

... V. LCMV BEAMFORMING AVOIDING DOA ESTIMATION Despite the similarities of the LCMV and OC solutions, the main difference between these techniques relies in the fact that the LCMV requires the DOAs estimation of desired ... See full document

... We have proposed a new equalizer filter structure based on generalized orthonormal bases. We also have presented an experimental method for basis parameterizing[r] ... See full document

... Abstract—This work presents a new technique based on maximum-likelihood criteria for detection of two non- orthogonal n-PAM signals with spectral overlapping through an AWGN band limited channel. The new detection ... See full document

... In [1], Alamouti has proposed a simple transmission diver- sity scheme using space-time block codes (STBC) with two antennas. The obtained diversity order is similar to apply- ing a maximal-ratio receiver combining ... See full document

... This paper suggests using CS to reduce the load of CSI feedback in an i.i.d SM-MIMO systems. The feedback com- pression can be carried out by compressive sensing, and highly-accurate channel information recovery ... See full document

... obtain an analytical closed-form to the ergodic capacity, especially in some cases, is still a great challenge due to difficulty in manipulating the non-Gaussian joint channel ... See full document

... In mobile communications the downlink beamforming plays an important role in the increasing of link qual- ity and/or system capacity. Beamforming may be per- formed with or without cancellation of interferers. ... See full document

... In this work, the use of linear precoding with statistics- based CSIT obtained in a dynamic way has been studied. The scenario considers a multiuser CoMP system with joint processing, which is an architecture of ... See full document

... The concept of link adaptation is being widely used in wireless systems in order to take profit from the channel information to maximize the data rate, or equivalently, the throughput. Actual systems, e.g. HSDPA, already ... See full document

... establish an environment that encourages creativity, experimentation and openness to new ideas (Bukowitz and Williams, ...hand, an environment conducive to learning makes employees pro-business in their ... See full document

... ignoring an alarm that cause great damage to the machine’s ...of an employee could have changed that person’s life entirely or even damaged Alvaro’s public face if had not proceeded ... See full document

... how an emotional lens can further our understanding of experiencing difference and negotiating belonging were chosen because they are exem- plary for the point I want to make ...demarcate an important ... See full document