Báo cáo hóa học: " Research Article Performance Analysis of the 3GPP-LTE Physical Control Channels" pdf

... OFDM symbol of the first slot of each subframe. For the normal CP duration, the PHICH is also mapped into the first OFDM symbol of the first slot of each subframe. On the other hand, for the extended ... mathematical analyses. The motivation behind this paper is to describe the analytical aspects of the performance of optimal receiver principles for the decodi...

Ngày tải lên: 21/06/2014, 11:20

... function of MGF, and the MGF of the dispersed spectrum CR system over Nakagami-m channel is given in (7) which is defined as the Laplace transformofthePDFoftheSNR[19]. Let the SNR at the end of a ... the performance. In the limiting case, if K goes to infinity the performance converges to the performance of AWGN channel (see the appendix). Figure 4 presents th...

Ngày tải lên: 21/06/2014, 05:20

... SNR . (29) Theorem 7. The diversity order of a two-hop AF relay system is min {N S , N D } when an OSTBC strateg y is employed at the source. Proof. Since the diversity order of the system describes performance ... likelihood (ML) detection of OSTBCs for the case of spatially colored noise given in [11], the received SNRisobtainedasfollows. Theorem 1. Using the exact r...

Ngày tải lên: 21/06/2014, 11:20

... network and the output of the input layer nodes is precisely the components of the input pattern. For successive layers, the input to each node is then the sum of the products of the incoming vector components ... 1. The output error equation of the first layer (15) and the error equation of the second layer (21)aredifferent. However, the error equation of...

Ngày tải lên: 21/06/2014, 20:20

... has settled to a steady state after this length of time. Since the focus of this research is to analyse the effects of the underlying MAC on the performance of RASCAAL and vice versa, simulations were ... knowledge of the cluster head by a random shift in the role of ACTIVE CA to any other IDLE CA in the network at the end of a transaction. This differs from t...

Ngày tải lên: 21/06/2014, 23:20

... of the well-known mathematical software packages, such as MATHEMATICA or MATLAB. 5. PERFORMANCE ANALYSIS In this section a detailed performance analysis, in terms of P out , ASEP, ASNR and AoF, ... 0.9 0.2 0.3 0.4 0.5 0.6 0.7 Amount of fading (AoF) Figure 2: Amount of fading (AoF) versus the Ricean K-factor for several values of the correlation coefficient ρ. show that as...

Ngày tải lên: 22/06/2014, 19:20

... frame. The problem of interest here is to analyt- ically find the performance of the receiver in the presence of ROE. 3. MEAN SQUARE ERROR IN THE ESTIMATION OF CHANNEL GAINS IN THE PRESENCE OF RESIDUAL OFFSET ... performance analysis of OSTBC systems in the presence of imperfect CSI (due to noise alone) follow as special cases of the analysis presented h...

Ngày tải lên: 22/06/2014, 19:20

... of the user of interest, and the noise covariance matrix. The effect of the spreading factor and the channel length on the performance of the algorithms is also studied. It is shown that the performance ... null(Ψ), the smaller the value of tr(Σ (1) v Ψ). Using the latter fact, the effect of the spreading factor and the channel length on tr(Σ (1) v Ψ)...

Ngày tải lên: 22/06/2014, 23:20

... accelerate the convergence of the algorithm. The nature of the fixed point is determined by the char- acteristic values of the Jacobian matrix of partial derivatives evaluated at the fixed point. The ... right shows the histogram of the estimated parameters. The left column shows the time series of the estimated state functions of the hemodynamic respon...

Ngày tải lên: 21/06/2014, 20:20

... Delay. The transmission delay is the sum of the fixed time from the grant time of the tagged i-packet to the start of transmission of the i-packets in the next frame and the transmission times of the ... essential impact on the mean overall nrtPS delay. The positions of the curves relatively to each other on the right side of Figure 12 are the conseq...

Ngày tải lên: 21/06/2014, 05:20