Báo cáo hóa học: " Performance analysis of distributed ZF beamforming in the presence of CFO" pptx

... gains The SNR gain comes from the (coherent) addition of the incoming streams at the receiver antennas. It isobtained by averaging the instantaneous SNR over the channel realizations and indicates ... that degrades the performance of the system due to the in- phasemisalignment of the incoming streams. This paper presents the losses of the signal-to-noise ratio gain analyticallyand the diversity ... less intensive than theirfully coordinated counterpart since they only require the local processing of the beamforming weights. Besides the difficult exchange of the data and CSI between the transmit...

Báo cáo hóa học: " Enabling direct connectivity between heterogeneous objects in the internet of things through a network-service-oriented architecture" docx

... only delays the parameters in the waiting space of the initial node:packets are not further delayed in intermediate nodes.Since the aggregation is part of the IDRA architecture, the aggregation ... (2) bridging net-works using different communication technologies. In addition, the performance of the architecture is evalu-ated and the economic v iability of introducing IDRA in existing networks ... retrieveFigure 1 In the vision of the internet of things, e verydayobjects will all become interconnected using a variety of communication technologies. These objects can be used in intelligent applications...

báo cáo hóa học: " Some new finite difference inequalities arising in the theory of difference equations" pptx

... decreasing in the secondvariable”, “f(m, n)is nondecreasing in the first variable a nd decreasing in the secondvariable”,and“b is decreasing in the second variable” in Theorem 2.8, then Theorem2.8 ... nonde-creasing in the first variable, while decreasing in the second variable, a is nonde-creasing in the first variable, and b is decreasing in the second variable, a, b aredefined as in Theorem ... nondecreasing in the first variable, while decreasing in the second variable, a isnondecreasing in the first variable, and b is decreasing in the second variable, a, b, p,q, r, l are defined as in Theorem...

Báo cáo hóa học: " Performance analysis of spectrum sharing mechanisms in cognitive radio networks" pptx

... mechanism is presented in Appendix B. The main purpose of deriving the steady-state probabil-ities is to evaluate the performance metrics in the jointleasing and sensing-based CRN.3. Performance metricsQoS ... 1/μp,which is the same as the PU’s service time. Therefore, the total rate of a PU leaving the system only dependson Np(t). This implies that the number of PUs in the system is independent of the SUs’ ... krepre-sents the steady probability of state, in which Np(t)=iis the number of PUs in the system,Ns(t)=jis the number of SUs in the system, Ns(t)=k is the number of SUs in service....

Báo cáo hóa học: " Performance analysis of massively parallel embedded hardware architectures for retinal image processing" pot

... obtaining a binary map. To ensure thatweareoutsideofthevesselslocation, some erosions areapplied. The final image contains the initial contours. The second task is to determine the guiding informa-tion, ... profiling make the development muchfaster than in other platforms. This is one of the pur-poses of the platform, to offer a high -performance device keeping prototyping rapid and closer to software.Using ... is the main reason why PC performance is so low: the selecteddevices are capable of doing all the processing on-chip,accessing to the external memory just for loading the input image. On the...

Báo cáo hóa học: " Performance analysis of OFDM modulation on indoor broadband PLC channels" ppt

... channels intro-duced in Section 2. As mentioned in Section 1, it is in- appropriate to assess the performance of the OFDMsystem in terms of the SNIR, since maximizing it doesnot maximizes the bit-rate. ... because of the periodic beha-vior of the channel response. We evaluate the performance of broadband OFDMsystemsonindoorpower-linechannelsasafunction of the number of carriers and the cyclic ... energy of the remaining part of the channelimpulse response (the one not included in the delay spread)would also be almost time-invariant. Therefore, if the cyclicpreﬁx length is larger than the...

Báo cáo hóa học: "Performance Analysis of the Blind Minimum Output Variance Estimator for Carrier Frequency Offset in " pot

... Associate Profes-sor in the Division of Communication En-gineering. His research interests are in the areas of signal process-ing for communications, with special interests in the performance evaluations ... per formance of the MOV estimator is obtainedby simulations. The main objective of this paper is to de-rive the theoretical mean and variance of the MOV estima-tor and examine the performance ... estimator in OFDM systems. The variance and the expectation of the output magnitudehave been derived for the MOV estimator. The theoreticalMSE of the MOV estimator has been derived and the theoret-ical...

Báo cáo hóa học: " Performance analysis for optimum transmission and comparison with maximal ratio transmission for MIMO systems with cochannel interference" pdf

... precise analysis of CCI including the effects of ISI produced by the CCI and the effects of random symbol and carrier tim-ing offsets. The focus of this study is on the analysis of the schemes rather ... the presence of CCI,thus increasing the performance of mobile radio systems. The performance of OC was studied for both nonfading[1] and fading [2-12] communication systems in the pre-sence of ... QAM in the presence of CCI, it is our another aim in this article to examine the validity of the Gaussian interference model in the MRT-based systems. Nyquist pulse shaping and the effects of cross-channel...

Tài liệu Báo cáo khoa học: Control analysis as a tool to understand the formation of the las operon in Lactococcus lactis doc

... all the genesinvolved in the pathway in the same operon; the cellcan then respond quickly to changes in the environ-ment by changing the expression of only a few genesand using the protein-synthesizing ... by the second gene in the las operon (Fig. 1). In order to obtain strains with increased PK activity anadditional copy of the pyk gene was recombined into the TP901-1 attachment site using the ... obtained by replacing the native laspromoter with synthetic promoters in a single cross-over event [11]. From this library consisting of 50strains with altered expression of the las operon, the enzyme...

báo cáo hóa học:" Lentivirus-mediated RNAi silencing targeting ABCC2 increasing the sensitivity of a human nasopharyngeal carcinoma cell line against cisplatin" docx

... andhelped in the interpretation of the data, KTY supervised all the work and wrote the paper together with SMX, WYF.Silencing of ABCC2 by siRNA increased the sensitivity of cisplatin in CNE2 without ... cells in terms of IC50(Fig. 3B). Interestingly, a similar result was also shown in the cisplatin-resistant ovarian carcinoma cell line with the treatment of RNAi targeting ABCC2 [14]. Here, our in ... one of the most used drugs in chemotherapeu-tic treatment for NPC. Our results including in vitro and in vivo data indicate that ABCC2 may play an important role in modulating the response of...

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