Community input

Bài viết "Nâng cao chất lượng cho các hệ thống MIMO sử dụng kỹ thuật lựa chọn ăng-ten phát kết hợp tiền mã hóa và san bằng" đề xuất giải pháp nâng cao chất lượng cho các hệ thống MIMO sử dụng kỹ thuật lựa chọn ăng-ten phát kết hợp tiền mã hóa và san bằng. Các kết quả tính toán và mô phỏng cho thấy, phẩm chất BER của thiết kế đề xuất đã cải thiện tốt hơn so với các thiết kế trước đây. Ngoài ra, với việc lựa chọn ăng-ten phát kết hợp tiền mã hóa và san bằng thì độ lợi SNR của hệ thống cũng được tăng lên đáng kể.

5p lieuyeuyeu18 23-12-2022 31 5   Download

Participating in the process of building this community, Vietnam has more opportunities to access markets inside and outside the region, thereby expanding markets, diversifying exports; stabilizing import sources and lowering import input prices, thereby contributing to economic restructuring and realization of socio-economic development goals.

13p vigiselle2711 29-08-2021 13 2   Download

The research was expected to have the following potential outcomes. First, prior the positive change in EFL teaching with a better positionality of intercultural education, an investigation into teachers’ perceptions and practices would provide educational managers with evaluative feedback on the existing status of intercultural integration. Second, it might raise awareness of participating teachers and students on the role of culture in EFL education.

229p nguathienthan12 23-05-2021 34 5   Download

This paper demonstrates that for a CNN it is vice-versa, in which concatenation is better for CDR classification. To this end, we develop a CNN based model with multiple input concatenated for CDR classification. Experimental results on the benchmark dataset demonstrate its outperformance over other recent state-of-the-art CDR classification models.

6p tamynhan6 14-09-2020 16 4   Download

In this work, one of the methods deploying encryption to cipher data is represented. The primary object of this project is applying Advanced Encryption Standard (AES) in communications based Orthogonal Frequency Division Multiplexing (OFDM). This article discusses the security of the method encrypting directly QAM symbols instead of input bit-stream.

8p tamynhan6 14-09-2020 34 3   Download

This study provides some insights into the use of speech acts by Vietnamese EFL learners from a cross-cultural perspective. It is suggested that the influence of culture has resulted in students’ common failures to understand and perform English speech acts. To minimize this kind of pragmatic failure, it is recommended that EFL teachers raise students’ awareness of some cultural issues in cross-cultural communication. Furthermore, it is necessary to incorporate speech acts into English language teaching with authentic input and lifelike communicative activities.

7p slimzslimz 08-12-2019 60 8   Download

Tham khảo bài thuyết trình 'chapter 5: the communication process', kinh doanh - tiếp thị, internet marketing phục vụ nhu cầu học tập, nghiên cứu và làm việc hiệu quả

27p sonnguyen3515 19-09-2013 300 9   Download

Communication Systems Lecturer: M.E. P.T.A. Quang .Contents           Chapter 1: Introductory Concepts Chapter 2: QoS Chapter 3: Transmission and switching Chapter 4: Digital networks Chapter 5: Signaling Chapter 6: PSTN Chapter 7: VoIP Chapter 8: Mobile communication Chapter 9: Satellite communication Chapter 10: Fiber-optic communication .

20p vanmanh1008 24-06-2013 108 7   Download

Organization scholars have long acknowledged that control processes are integral to the way in which organizations function. While control theory research spans many decades and draws on several rich traditions, theoretical limitations have kept it from generating consistent and interpretable empirical findings and from reaching consensus concerning the nature of key relationships.

561p namde02 08-03-2013 87 7   Download

Lecture series based on the text: Essential MATLAB for Engineers and Scientists By Hahn & Valentine The Command Window on the right is the main panel where you interact with MATLAB. You key (or type) and commands after the prompt ; MATLAB executes the commands and displays results (if requested). Some commonly used tools and commands: (up arrow) returns last command input, can be repeated clc – clears the screen whos – shows list of variables clear – clears variables

69p feteler 27-11-2012 45 3   Download

This report has been reviewed in draft form by individuals chosen for their diverse perspectives and technical expertise, in accordance with procedures approved by the NRC’s Report Review Committee. The purpose of this independent review is to provide candid and critical comments that will assist the institution in making its published report as sound as possible and to ensure that the report meets institutional standards for objectivity, evidence, and responsiveness to the study charge.

169p banhkem0908 24-11-2012 67 6   Download

Statistical communication theory is generally ragarded as having been founed by Shannon( 1948) and Wiene(1949), who conceived of the communication situation as one in which a signal chosen from a specified class is to be tranmitted through of channel, but the output of the channel is not determined by the input

345p tiramisu0908 25-10-2012 62 9   Download

An open data communication protocol developed in 1979 Published by Modicon Open structure Flexible Widely known Supplied by many SCADA and HMI software Have OPC Servers 2 serial transmission modes: ASCII 10 bits RTU (Binary) 11 bits Communication interface RS-232/485 Ethernet (TCP/IP) Station Device: 0 ~ 255 Digital input 1xxxx: 4 digits for hexadecimal address (0000 ~ FFFF) 1xxxxx: 5 digital for decimal address (0 ~ 65535) Digital output 0xxxx: 4 digits for hexadecimal address (0000 ~ FFFF) 0xxxxx: 5 digital for decimal address (0 ~ 65535) Analog input 4xxxx: 4 dig...

14p buisontdtq 04-10-2012 80 15   Download

Linux History Design Principles Kernel Modules Process Management Scheduling Memory Management File Systems Input and Output Interprocess Communication Network Structure Security To explore the history of the UNIX operating system from which Linux is derived and the principles which Linux is designed upon To examine the Linux process model and illustrate how Linux schedules processes and provides interprocess communication To look at memory management in Linux To explore how Linux implements file systems and manages I/O devices...

62p perpan 02-09-2012 77 16   Download

The Verilog HDL supports a hierarchical hardware description structure by allowing modules to be embedded within other modules. Higher level modules create instances of lower level modules and communicate with them through input, output, and bidirectional ports. These module input/output (I/O) ports can be scalar or vector.

24p vanlektmt 13-05-2011 69 5   Download

Language allows the communication and elaboration of thoughts and experiences by linking them to arbitrary symbols known as words. The neural substrate of language is composed of a distributed network centered in the perisylvian region of the left hemisphere. The posterior pole of this network is located at the temporoparietal junction and includes a region known as Wernicke's area. An essential function of Wernicke's area is to transform sensory inputs into their lexical representations so that these can establish the distributed associations that give the word its meaning. ...

5p ongxaemnumber1 29-11-2010 70 4   Download

Module CPU chính bao gồm: (H1-2, 1-3, 1-4)CPU: thực hiện chương trình và chứa dữ liệu cho điều khiển các quá trình tự động. Nguồn cấp điện (Power supply) Các đầu vào/ra hệ thống (Inputs/Outputs) Các cổng truyền thông (Communications Port) Các đèn trạng thái (Status light ).Điện tử (còn gọi là electron, được biểu diễn như là e−) là một hạt hạ nguyên tử, hay hạt sơ cấp. Trong nguyên tử electron quay xung quanh hạt nhân (bao gồm các proton và neutron) trên quỹ đạo electron....

144p khoitdha 01-10-2010 534 185   Download

History Design Principles Kernel Modules Process Management Scheduling Memory Management File Systems Input and Output Interprocess Communication Network Structure Security History Linux is a modem, free operating system based on UNIX standards. First developed as a small but self-contained kernel in 1991 by Linus Torvalds, with the major design goal of UNIX compatibility. Its history has been one of collaboration by many users from all around the world, corresponding almost exclusively over the Internet.

10p kanguru_91 28-09-2010 140 22   Download

Ports provide the interface by which a module can communicate with its environment. For example, the input/output pins of an IC chip are its ports.

6p chabongthitga 19-09-2010 88 6   Download

[ Team LiB ] 4.2 Ports Ports provide the interface by which a module can communicate with its environment. For example, the input/output pins of an IC chip are its ports. The environment can interact with the module only through its ports.

7p sieukidvn 16-08-2010 88 6   Download