Multiuser systems

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  • Tuyển tập báo cáo các nghiên cứu khoa học quốc tế ngành hóa học dành cho các bạn yêu hóa học tham khảo đề tài: An Approach to Optimum Joint Beamforming Design in a MIMO-OFDM Multiuser System

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  • MATLAB (Matrix Laboratory) is a matrix-oriented tool for mathematical programming, applied for numerical computation and simulation purposes. Together with its dynamic simulation toolbox Simulink, as a graphical environment for the simulation of dynamic systems, it has become a very powerful tool suitable for a large number of applications in many areas of research and development.

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  • LINUX IS A MULTIUSER, multitasking operating system from the ground up, and in this regard the system administrator has flexibility — and responsibility — far beyond those of other operating systems. Now, Red Hat has employed innovations that extend these duties even for the experienced Linux user. In this chapter, we look at those requirements.

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  • Bài này giới thiệu một loại máy thu đa truy nhập sử dụng mạng Hopfield bằng cách kết hợp thuật toán cận tối ưu với khả năng hội tụ nhanh của mạng neural. Abstract This paper introduces a novel multi-user receiver, Hopfield network receiver, which combines fast convergence of neural network with the asymptotically optimum algorithm. Trong thời gian gần đây, hệ thống thông tin trải phổ (Spread Spectrum Communication System) đã được xem xét rộng rãi do quá trình thực hiện đã dễ dàng hơn.

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  • In this book, we present the basic principles that underlie the analysis and design of digital communication system. The subject of digital communications involves the tranamission in digital form a source that generates the information to one or more destinations. Of particular importance in the analysis and desigm of communication system...

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  • Digital communications is a rapidly advancing applications area. Significant current activities are in the development of mobile communications equipment for personal use, in the expansion of the available bandwidth (and hence information carrying capacity) of the backbone transmission structure through developments in optical fibre, and in the ubiquitous use of networks for data communications.

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  • Starting MATLAB Startup Options You can define startup options for MATLAB, which instruct MATLAB to perform certain operations upon startup. There are two ways to specify startup options for MATLAB: • “Using the Startup File for MATLAB, startup.m” on page 1-5 • “Adding Startup Options for Windows Platforms” on page 1-5 or “Adding Startup Options for UNIX Platforms” on page 1-7 Using the Startup File for MATLAB, startup.m At startup, MATLAB automatically executes the master M-file matlabrc.m and, if it exists, startup.m. The file matlabrc.

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  • This Second Edition of the go-to reference combines the classical analysis and modern applications of applied mathematics for chemical engineers. The book introduces traditional techniques for solving ordinary differential equations (ODEs), adding new material on approximate solution methods such as perturbation techniques and elementary numerical solutions. It also includes analytical methods to deal with important classes of finite-difference equations. The last half discusses numerical solution techniques and partial differential equations (PDEs). The read...

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  • Transforming the information source to a form compatible with a digital system. Sampling. Aliasing. Quantization Uniform and non-uniform. Baseband modulation. Binary pulse modulation. M-ary pulse modulation. M-PAM (M-ary Pulse amplitude modulation).Assuming real time transmission and equal energy per transmission data bit for binary-PAM and 4-ary PAM

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  • Hindawi Publishing Corporation EURASIP Journal on Wireless Communications and Networking Volume 2011, Article ID 351494, 12 pages doi:10.

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  • Communications is a process by which information is exchanged between individuals through a common system of symbols, signs, or behaviour “It is about communication between people; the rest is technology” Communication systems are reliable, economical and efficient means of communications Public switched telephone network (PSTN), mobile telephone communication (GSM, 3G, 4G...), broadcast radio or television, navigation systems, ... The course is aiming at introducing fundamental issues required for understanding and designing a (digital) communication system...

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  • Important features of digital communication systems Some basic concepts and definitions such as as signal classification, spectral density, random process, linear systems and signal bandwidth.The first important step in any DCS: Transforming the information source to a form compatible with a digital syst

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  • Tuyển tập báo cáo các nghiên cứu khoa học quốc tế ngành hóa học dành cho các bạn yêu hóa học tham khảo đề tài: Multipass Channel Estimation and Joint Multiuser Detection and Equalization for MIMO Long-Code DS/CDMA Systems

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  • Tuyển tập báo cáo các nghiên cứu khoa học quốc tế ngành hóa học dành cho các bạn yêu hóa học tham khảo đề tài: Improved Multiuser Detectors Employing Genetic Algorithms in a Space-Time Block Coded System

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  • Signal detection in AWGN channels Minimum distance detector. Maximum likelihood. Average probability of symbol error. Union bound on error probability. Upper bound on error probability based on the minimum distance.ISI in the detection process due to the filtering effects of the system Overall equivalent system transfer function

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  • Tuyển tập báo cáo các nghiên cứu khoa học quốc tế ngành hóa học dành cho các bạn yêu hóa học tham khảo đề tài: Blind Multiuser Detection by Kurtosis Maximization for Asynchronous Multirate DS/CDMA Systems

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  • Tuyển tập báo cáo các nghiên cứu khoa học quốc tế ngành hóa học dành cho các bạn yêu hóa học tham khảo đề tài: Timing-Free Blind Multiuser Detection for Multicarrier DS/CDMA Systems with Multiple Antennae

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  • Linux Computing Environment 1 Objectives Upon completion of this module, you should be able to: • List the four main components of a computer • Describe the three main components of the Linux operating system • Identify the three most common shells in the Linux system • Distinguish between the multitasking, multiuser, and distributed processing capabilities of the Linux system

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  • Another source of error due to filtering effect of the system: Intersymbol. interference (ISI) The techniques to reduce ISI. Pulse shaping to achieve zero ISI at the sampling time. Equalization to combat the filtering effect of the channel.Some bandpass modulation schemes used in DCS for transmitting information oer channel. MPAM, MPSK, MFSK, MQAM How to detect the transmitted information at the receiver. Coherent detection. Noncoherent detection.

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  • Tuyển tập các báo cáo nghiên cứu về hóa học được đăng trên tạp chí hóa hoc quốc tế đề tài : Frequency-domain equalization for OFDMA-based multiuser MIMO systems with improper modulation schemes

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