Long Term Evolution

Bài báo "Mô hình tự động nhận dạng tín hiệu LTE - NR thông qua kết hợp biến đổi Fourier nhanh và mạng học sâu" đề xuất một phương pháp hiệu quả trong việc phân biệt tín hiệu viễn thông thế hệ thứ năm (5G) cũng như tín hiệu LTE (Long-Term Evolution), tập trung vào nhiệm vụ xác định dải tần số của tín hiệu được điều chế trong mạng không dây thế hệ tiếp theo. Trong quá trình điều chế để truyền đi xa, các tín hiệu thường được kết hợp với nhau và rất khó để phân biệt trong cùng dải tần số.

6p phocuuvan0201 02-02-2024 13 1   Download

Ebook "Evolution that anyone can understand" discovery of the link between smoking and lung cancer and heart disease was not received well by the tobacco industry, and the link between global climate change and fossil fuel use has not been well received by the petroleum industry, to cite just two examples. Usually the response of those whose world has been disrupted by science is denial, often followed by attack on or ridicule of the science that has challenged them. In the long term, however, science usually turns out to be correct.

118p tachieuhoa 28-01-2024 8 2   Download

Từ cuối năm 2012, CDIT đã được Tập đoàn VNPT giao nhiệm vụ hỗ trợ dự án thử nghiệm LTE của Tập đoàn dưới sự quản lý và giám sát của Ban chuẩn bị dự án thành lập công ty cổ phần Dịch vụ Vô tuyến Băng rộng của VNPT (gọi tắt là Ban VTBR). Bài viết trình bày những kết quả đạt được của CDIT trong việc hỗ trợ dự án thử nghiệm LTE (long term evolution) của VNPT.

4p vijeff 01-12-2023 6 3   Download

Ebook "Variance accounting" provides readers with contents including: measurement of costs and profit; the profit motive in industry; evolution of variance accounting; setting targets; long-and short-term planning; functional budgets; accounting for variances; theory and practice of variance' analysis; absorption costing;...

143p mocthanhdao0210 19-11-2023 11 4   Download

Continued part 1, part 2 of ebook "Introduction to Mobile network engineering: GSM, 3G-WCDMA, LTE and the road to 5G" provides readers with contents including: high-speed packet data access (HSPA); 4G-long term evolution (LTE) system; LTE-A; further development for the fifth generation; annex - base-station site solutions;...

208p dangsovu 20-10-2023 6 6   Download

Steady evolution of therapies has improved prognosis of patients with multiple myeloma (MM) over the past two decades. Yet, knowledge about survival trends and causes of death in MM might play a crucial role in long-term management of this patient collective.

10p vischultz 20-10-2023 6 1   Download

Proton pump inhibitors (PPIs) are one of the most commonly prescribed pharmacological groups. Their high prevalence and duration of use are of important health concern due to the risk they can cause to patients.

8p viferrari 28-11-2022 9 2   Download

In this paper, we present modeling and design of a bandpass filter for the use in Remote Radio Unit (RRU) transceivers (TRX) of Long Term Evolution Advantage (LTE-A) base stations. Generalized Chebyshev response is employed to synthesize the filter.

5p vispyker 16-11-2022 6 3   Download

We have studied the spatiotemporal evolution of surface deformation in Konya city and its vicinity using advanced multitemporal synthetic aperture radar techniques with SAR data acquired by Envisat, ALOS-1, and Sentinel-1 A/B satellites between 2004 and 2020. Velocity maps and time series show that the city has been subsiding with varying rates in space and time since 2004. The pattern of deformation shows two main lobes of subsidence centered in the western and eastern sides of the city with a nondeforming north-south trending narrow zone in between.

17p tanmocphong 29-01-2022 7 0   Download

Long-term evolution of sex chromosomes is a dynamic process shaped by gene gain and gene loss. Sex chromosome gene traffic has been studied in XY and ZW systems but no detailed analyses have been carried out for haploid phase UV sex chromosomes. Here, we explore sex-specific sequences of seven brown algal species to understand the dynamics of the sex-determining region (SDR) gene content across 100 million years of evolution.

14p vialfrednobel 29-01-2022 19 0   Download

Elevated temperatures can cause physiological, biochemical, and molecular responses in plants that can greatly affect their growth and development. Mutations are the most fundamental force driving biological evolution. However, how long-term elevations in temperature influence the accumulation of mutations in plants remains unknown.

27p viarchimedes 26-01-2022 13 0   Download

Many genes important for reproductive performance are shared by both sexes. However, fecundity indices are primarily based on female parameters such as litter size. We examined a fertility mouse line (FL2), which has a considerably increased number of offspring and a total litter weight of 180% compared to a randomly bred control line (Ctrl) after more than 170 generations of breeding. In the present study, we investigated whether there might be a parallel evolution in males after more than 40 years of breeding in this outbred mouse model.

19p vilarryellison 29-10-2021 12 0   Download

Polyploidy is considered a major driving force in genome expansion, yielding duplicated genes whose expression may be conserved or divergence as a consequence of polyploidization. The expression diversification of the duplicated genes suggested it might be a universal feature of the long-term evolution of cotton.

13p vibeauty 23-10-2021 7 0   Download

Trong bệnh viện, cảm biến được đặt tại các phòng khám nhằm giám sát số lượng bệnh nhân đến khám chữa bệnh. Trong điều trị, bệnh nhân mang các thiết bị cảm biến sinh trắc học để theo dõi sức khỏe.... Nghiên cứu đề xuất mô hình mạng động cho bài toán lập lịch tài nguyên trong mạng LTE nhằm nâng cao chất lượng dịch vụ và là một phần của bệnh viện thông minh.

8p vijihyo2711 25-09-2021 20 2   Download

In the current scenario, the drug-resistant tuberculosis is a significant challenge in the control of tuberculosis worldwide. In order to investigate the in vivo evolution of drug-resistant M. tuberculosis, the present study envisaged sequencing of the draft genomes of 18 serial isolates from four pre-extensively drug-resistant (pre-XDR) tuberculosis patients for continuous genetic alterations.

11p vitzuyu2711 29-09-2021 7 1   Download

Compensatory growth refers to the phenomenon in which organisms grow faster after the improvement of an adverse environment and is thought to be an adaptive evolution to cope with the alleviation of the hostile environment. Many fish have the capacity for compensatory growth, but the underlying cellular mechanisms remain unclear.

13p viansan2711 30-07-2021 8 1   Download

Bacterial cells during many replication cycles accumulate spontaneous mutations, which result in the birth of novel clones. As a result of this clonal expansion, an evolving bacterial population has different clonal composition over time, as revealed in the long-term evolution experiments (LTEEs).

11p vijeeni2711 24-07-2021 11 0   Download

Intensive research wor ks have been done in the photovoltaic field since the first solar cell was fabricated in 1954, leading to the formation of various kinds of solar cells. Among those, Perovskite solar cells (PSCs) have received great attention from researchers in recent years due to their outstanding performance. Since the first Perovskite solar cell was introduced, research in this area has intensively increased resulting in a rapid increment in power conversion efficiency of devices from 3.8% in 2009 to 25.2% in 2020.

5p caygaocaolon11 18-04-2021 21 3   Download

Over the last few decades, the wireless industry has changed and grown, time and time again. This industry as a whole shifted from 1G for analog to digital phones 2G (SMS - Short Message Services and voicemail), then from 2G to 3G, 3.5G networks, which came with the mobile broadband internet connections that enabled the smartphone revolution, to 4G and 4GLTE (Long Term Evolution) which had high data rate cellular network. Future fifth-generation wireless communication networks (5G) [1, 2] will make an important difference and will add more services and benefits to the world over 4G.

9p kequaidan8 02-11-2020 24 1   Download

Recently, with the access of low toxicity biological and targeted therapies, evidence of the existence of a long-term survival subpopulation of cancer patients is appearing. We have studied an unselected population with advanced lung cancer to look for evidence of multimodality in survival distribution, and estimate the proportion of long-term survivors.

6p vialabama2711 21-09-2020 17 0   Download