báo cáo hóa học:" Improving energy efficiency through multimode transmission in the downlink MIMO systems" docx

... and3GPP-LTE. Therefore, we will focus on the maximizing energy efficiency problem in the downlink MIMO systems in this article.Previous works mainly focused on maximizing energy efficiency in the single-input ... power allocation here helps in the comparison between SU -MIMO 1 Improving energy efficiency through multimode transmission in the downlink MIMO systemsJie Xu1, Ling Qiu∗1and Chengwen Yu21Personal ... switching in [15–18].Inter-user interference is small when the moving speed is low, so there is higher multiplexing gain of MU -MIMO benefits. When the moving speed is high, the inter-user interference...

Báo cáo sinh học: "Improving energy efficiency through multimode transmission in the downlink MIMO systems" docx

... and3GPP-LTE. Therefore, we will focus on the maximizing energy efﬁciency problem in the downlink MIMO systems in this article.Previous works mainly focused on maximizing energy efﬁciency in the single-input ... single-output (SISO) systems[3–7] and point to point single user (SU) MIMO systems [8–10]. In the uplink TDMA SISO channels, the optimal transmission rate was derived for energy saving in the ... increase the inter-user interference, in which the multiplexing gain makes transmit power saving, but inter-user interference inducestransmit power wasting. In order to maximize BPJ-EE, the trade-off...

Báo cáo toán học: " Improving energy efficiency through multimode transmission in the downlink MIMO systems" pptx

... 3GPP-LTE. Therefore, we will focus on the maximizing energy efficiency problem in t he down-link MIMO systems in this article.Previous works mainly focused on maxi mizing energy efficiency in the single-input ... the main pa rts of the energy consumption [1,2], improving the energy efficiency ofBS is significant. Additionally, multiple-input multiple-output (MIMO) has become the key te chnology in the next ... increase the inter-us er interference, in which the multiplexing gain makes transmit powersaving, but inter-user interference induces transmitpower wasting. In order to maximize BPJ-EE, the trade-off...

Báo cáo hóa học: " Research Article Robust Speech Watermarking Procedure in the Time-Frequency Domain" docx

... provide the inverse transform from the time-frequency domain. In the sequel, the general concept of the time-varying filteringis presented.For a given signal x, the pseudoform of time-varyingfiltering, ... Advances in Signal Processingwatermark according to these components. The basic idea ofthis approach has been introduced in [12]. The time-varyingfiltering is also used to overcome the problem of inversemapping ... watermark. The remaining partsof the sequence p have the same in uence on detection as in the case of wrong trials.A significant improvement of watermark detection isobtained if the cross-terms in the...

Báo cáo hóa học: " Research Article Iterative Reconﬁgurable Tree Search Detection of MIMO Systems" docx

... any further exploration of a pathrelatively early in the search without losing the MLP, if the in uence of unexplored branch metrics on the rank orderof the path metrics are insigniﬁcant. The ... algorithm based on the ITS scheme. By reconﬁguring the tree structure according to the symbol reliability infor-mation, the new algorithm can further decrease the numberof sequences in the search space ... from HarbinInstitute of Technology, Harbin, China, in 1984 and 1992, respectively, and the Ph.D. degree in electronic engineering from the University of Tokushima, Tokushima,Japan, in 1995....

Báo cáo hóa học: " Improving network energy efficiency through cooperative idling in the multi-cell systems" pot

... Conference(GreenCom), Online (2011)13. J Xu, L Qiu, C Yu, Improving energy efficiency through multimode transmission in the downlink MIMO systems, in EURASIP J Wireless Communand Networking (2011, in press)14. ... transmitters in the downlink systems.There are a lot of literatures considering the coopera-tive multi-cell downlink systems from a standpoint ofspectral efficiency (SE). As combating the inter-cellinterference ... tworeasons.ThefirstonecomesfromtheSINRimprove-ment through exploiting the inter-cell interference andthesecondonecomesfromthejointEEpowercontrol. The exciting result here is that CI preforms best.Through...

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 ... wireless sensor networks and theirintegration into the internet, in Proceedings of the First InternationalConference on Integrated Internet Ad Hoc and Sensor Networks. InterSense ‘06,vol. 138 ... important in the context o f the internet ofthings.Memory overhead The memory overhead of the overall IDRA architecture(including queue management, the network service bro-ker, the packet...

Báo cáo hóa học: " Binding Energy of Hydrogen-Like Impurities in Quantum Well Wires of InSb/GaAs in a Magnetic Field" pdf

... (practically in the range y 0.1); in an in nite barrier case the binding energy diverges,when y ? 0 for any magnetic strength. At such values of the QWW radius the binding energy of impurity is mainlydetermined ... the same value of y the growth of binding energy depending on the magnetic ﬁeld is more rapid for aFig. 2 The binding energy of the ground state of hydrogen-likeimpurity (in units of R*) as ... using the variational approach, developed in [27].Binding Energy CalculationsConsider the system consisting of the semiconducting wireof radius R1with the dielectric constant v1, having the coating...

báo cáo hóa học:" Physiologic upper limit of pore size in the blood-tumor barrier of malignant solid tumors" ppt

... ectopic site, the permeability of the BTB of the breast cancer tumor growing in the brain is lower than the BTB of the original tumor in breast tissue, the ortho-topic site[5]. The brain tissue ... imagedevery 10 min following the initial 15 minute dynamicscan, for a total of 175 minutes, while the animal wasmaintained under anesthesia for the duration of the scan-ning session. This ... concentration in blood was determined in the common carotid arteries, since these were the larg-est caliber brain vessels in the imaging field-of-view. Fromwithin the common carotid arteries, 5...

báo cáo hóa học:" Let-7 microRNAs are developmentally regulated in circulating human erythroid cells" docx

... regu-lated in circulating erythroid cells. As such, the data sup-port further erythroid-focused investigation of thesecurious RNA molecules.Conclusion In addition to globin and other protein-encoding ... let-7 in adult erythroid cells. We speculate thatlet-7 or other differentially expressed miRNA are involved in the hemoglobin switching phenomenon. Alternatively, the increased let-7 expression in ... three-foldchange. The remaining 37 of the 206 human miRNAswere upregulated in abundance in the adult samples.Among the up-regulated subgroup, hsa-miR-96 demon-strated a distinct pattern with a 34.4 fold increase...

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