On the performance of multicarrier CDMA (MC CDMA) systems with transmit diveristy

... ON THE PERFORMANCE OF MULTICARRIER CDMA (MC -CDMA) SYSTEMS WITH TRANSMIT DIVERSITY HE TAO A THESIS SUBMITTED FOR THE DEGREE OF MASTER OF ENGINEERING DEPARTMENT OF ELECTRICAL AND ... system The performance of the system with iterative multi-user receiver is presented and compared with the conventional ST coded CDMA system The thesis is then conc...

Ngày tải lên: 27/11/2015, 11:26

... CDMA systems [14, 15, 18] However, MC -CDMA systems have not been examined in such studies In this paper, the reverse link of an MC -CDMA system with the beamforming technique in the presence of ... , (13) In this section, the outage probability of MC -CDMA systems in the presence of CFO with perfect beamforming is evaluated To start t...

Ngày tải lên: 22/06/2014, 19:20

... y p,k m, in =1 where T = NTs is the duration of the useful part of the MCCDMA block and G (in ) is the frequency response of g(t) at the in th subcarrier In the sequel, we assume that the Nu modulated ... be used to estimate the DOAs of the kth user In this way, DOA estimation is performed independently for each active user instead of jointly and the...

Ngày tải lên: 22/06/2014, 19:20

... on SINR for hexagonal multicarrier system channel spread factor on the performance of SINR in hexagonal multicarrier modulation systems are further discussed The exact SINR expression versus insufficient ... and channel spread factor on the performance of SINR in hexagonal multicarrier modulation systems are further discussed The exact SINR ex...

Ngày tải lên: 21/06/2014, 22:20

... time variation of solar radiation and average temperature of the present experimental study in August and the theoretical results of [1] in June Figure 10 The time variation of solar radiation and ... time variation of the parameter “average temperature /solar radiation” for August from the present study and the published data [1] for June Figure 14 The time...

Ngày tải lên: 05/09/2013, 15:28

... and brine depth) The objective of this work is to investigate the effect of brine depth on the productivity and efficiency of solar still under laboratory conditions Table shows a summary of some ... summary of some of the studies cited in the literature that examined the effect of brine depth on productivity It can be seen from the table...

Ngày tải lên: 05/09/2013, 16:10

... understand the importance of reporting and the implementation of CSR with business operations of the company And then, the following hypothesis is developed: : Managers’ attitude toward CSR and CSR ... director and chief accountant of the company on the CSR of the company The question is to play a close look at the financial situation of the...

Ngày tải lên: 13/03/2014, 14:20

... determinants of mutual fund performance using four factor models for the funds from 19 countries The major finding of the study explained that size of the funds did matter and the performance of large funds ... Research Hypotheses In order to evaluate the effects of fund size on the performance of mutual funds, these hypotheses were teste...

Ngày tải lên: 16/03/2014, 17:20

... Upper and Lower Bounds 5.1 Lower Bounds W e could be in a better position to address the question o f the relative difficulty of interest if we could establish a rough estimate of the upper and ... lower bounds on the level of performance that can be expected W e will estimate the lower bound by evaluating the performance of a straw man system,...

Ngày tải lên: 17/03/2014, 08:20

... above, and the observed measures are averaged Second, the impact of the reflections off the surrounding environment was investigated for five positions of the transmitter around the body Repeated ... Finally, the last propagation contribution comes from the surrounding environment More precisely, the third propagation mechanism originates from reflections off...

Ngày tải lên: 20/06/2014, 22:20

... Effect of triplet multiple quantum well structures on the performance of blue phosphorescent organic light- emitting diodes Seokjae Lee†1, Jaryong Koo†1, Gunwoo Hyung†1, Donghwan Lim1, Donghyung ... the other devices due to a relatively narrow emissive region Conclusions In conclusion, the present study reports on the high efficiency blue PHOLEDs based...

Ngày tải lên: 20/06/2014, 23:20

... enable the calculation of the cost of a path, based on the LQI values of all links Therefore, we chose to evaluate the performance of these LQI-based routing metrics for NST-AODV Note that the PATH-DR ... data transmission rate for each node to allow for a link quality estimation [5] 4.5 MultiHopLQI One of the first attempts at a link quality estimat...

Ngày tải lên: 21/06/2014, 11:20

... Impact of Vehicular Mobility Models on Bypass-AODV Vehicular mobility models, FRW and MAN, are adopted to evaluate the performance of Bypass-AODV and then to compare it with AODV Initially, the ... the impact of each mobility model on the performance of the Bypass-AODV as well as the original AODV (1) The routing overhead ratio is the rat...

Ngày tải lên: 21/06/2014, 11:20

... here In Section 4, performance is evaluated for conventional and for kernelbased segmentations, with emphasis on the free parameters tuning Finally, Section contains the conclusions of our study ... analysis of the performance of SVM on the features of a segmentation based on the Orthogonal Fourier-Mellin Moments can be found They conclude that SVM achieves a h...

Ngày tải lên: 21/06/2014, 20:20

... demonstrate the impact of the Gaussian approximation on the performance of the coded PDA system, in CONCLUSION The impact of the Gaussian approximation in the conventional PDA MIMO decoder on the ... According to the central limit theorem, the quality of the Gaussian approximation used in the PDA decoder improves by increasing the numb...

Ngày tải lên: 23/06/2014, 00:20