Optical network

In this paper, we present a numerical simulation design of a 1:2 power splitter optical circuit with an evenly distributed 50:50 splitting ratio for all three modes simultaneously. The proposed design is based on the SOI material platform with wafers having a silicon layer thickness of 220nm, in accordance with VLSI chip manufacturing technology standards.

9p vithomson 02-07-2024 0 0   Download

In this paper, we propose an effective AMC using deep learning (DL) for flexible and adaptive OFDM-based optical networks. The proposed DL-based AMC is able to classify four typical modulation schemes such as binary phase-shift keying (BPSK), quadrature PSK (QPSK), 8-PSK, and 16- quadrature amplitude modulation (QAM) in dynamic network conditions.

6p vithomson 02-07-2024 0 0   Download

In this study, we suggested an FSO system with RIS assistance to mitigate the effects of signal blockage in the communication system, atmospheric turbulence, and UAV’s misalignment-induced fading. In a free-space environment with obstacles, the probability density function and cumulative distribution functions of an FSO system made up of RIS are derived.

8p vithomson 02-07-2024 0 0   Download

The purpose of this Encyclopedia of Multimedia Technology and Networking is to offer a written compendium of human knowledge related to the emerging multimedia digital metamarket. Multimedia technology, networks and online interactive multimedia services are taking advantage of a series of radical innovations in converging fields, such as the digitization of signals, satellite and fibre optic based transmission systems, algorithms for signal compression and control, switching and storage devices, and others, whose combination has a supra-additive synergistic effect.

1637p zizaybay1103 29-05-2024 2 2   Download

Lecture Computer networks - Chapter 1: Concept of Computer networks. This lecture provides students with content including: history of the internet; domestic internet data volume; international connections; optical fiber under the ocean; example of computer networks; network architecture; network protocol;... Please refer to the detailed content of the lecture!

120p codabach1016 03-05-2024 2 0   Download

With the goal of “Vietnam belongs to the group of 70 leading countries in e-Government (EGDI),”; “Digital economy accounts for 20% of GDP,”; “The fiber optic broadband network infrastructure covers over 80% of households, 100% of communes” and “Universal 4G/5G mobile network services and smartphones” force Vietnamese telecommunications businesses to have adaptive digital economy strategies to seize this opportunity.

11p longtimenosee09 08-04-2024 2 2   Download

Ebook "A first example of a lyotropic smectic C* analog phase: Design, properties and chirality effects" reports the discovery of the lyotropic counterpart of the thermotropic SmC* phase, which has become famous as the only spontaneously polarized, ferroelectric fluid in nature.

130p tudohanhtau1006 29-03-2024 2 1   Download

Ebook Cabling: The complete guide to network wiring (2nd edition) - Part 1 includes content: Chapter 1 introduction to data cabling, chapter 2 cabling specifications and standards, chapter 3 choosing the correct cabling, chapter 4 cable system and infrastructure constraints, chapter 5 cabling system components, chapter 6 tools of the trade, chapter 7 copper cable media, chapter 8 wall plates, chapter 9 connectors, chapter 10 fiber-optic media, chapter 11 unbounded (wireless) media.

480p longtimenosee03 22-02-2024 5 2   Download

Continued part 1, part 2 of ebook "Mission-critical network planning" includes content: software application continuity; storage continuity; continuity facilities; network management for continuity; using recovery sites; continuity testing; carrier/service provider agreements;...

206p longtimenosee03 22-02-2024 4 2   Download

This paper presents an end-to-end deep convolutional recurrent neural network solution for Khmer Optical Character Recognition (OCR) task. The proposed solution uses a sequenceto-sequence (Seq2Seq) architecture with an attention mechanism. The encoder extracts visual features from an input text-line image via layers of convolutional blocks and a layer of Gated Recurrent Units (GRU).

14p vibego 02-02-2024 5 0   Download

Part 2 book "Principles of electronic communication systems" includes content: Fundamentals of networking, local area networks, and ethernet; transmission lines; antennas and wave propagation; internet technologies; microwave and millimeter wave communication; satellite communication; telecommunication systems; optical communication; cell phone technologies; wireless technologies; communication tests and measurements.

497p muasambanhan06 03-02-2024 7 2   Download

Part 2 book "Principles of electronic communication systems" includes content: Digital data transmission; fundamentals of networking, local area networks, and ethernet; transmission lines; antennas and wave propagation; internet technologies; microwave and millimeter wave communication; satellite communication; telecommunication systems; optical communication; cell phone technologies; wireless technologies; communication tests and measurements.

557p muasambanhan06 03-02-2024 2 1   Download

Part 1 book "Industrial engineering and management science" includes content: Design identity system based on product identity and its case studies, predicting the return of the Japanese stock market with artificial neural network, an information system of community home-based elderly service and its application on curriculum design, multiple-channel and intelligence digital diagnostic system for SFP optical transceiver,... and other contents.

55p muasambanhan05 16-01-2024 3 0   Download

Continued part 1, part 2 of ebook "Electronics: Circuits and systems" provides readers with contents including: audio and video systems; cable transmission; optical transmission; radio transmission; instrumentation systems; electronic control systems; process control systems; microelectronic systems; programming languages; robotic systems; neural networks;...

156p dangsovu 20-10-2023 6 4   Download

This study proposed a breathing rate monitoring strategy using a mono camera to track and detect sleep apnea phenomena. Breathing rates were first tracked among consecutive image frames. The human body area was then isolated and magnified using a deep neural network (DNN) model before applying the optical flow algorithm to extract and monitor the up and down changes caused by respiration.

10p viisac 15-09-2023 5 3   Download

In this article, we present a solution to apply the convolutional neural network (CNN) to classify landcovers from remote sensing image data. This result shows great potential for the application of deep learning models in remote sensing image analysis.

12p viengels 25-08-2023 6 3   Download

Ebook Upgrading and repairing PCs (19th edition): Part 1 includes contents: Chapter 10 Removable storage; Chapter 11 Optical storage; Chapter 12 Video hardware; Chapter 13 Audio hardware; Chapter 14 External I/O interfaces; Chapter 15 Input devices; Chapter 16 Internet connectivity; Chapter 17 Local area networking; Chapter 18 Power supplies; Chapter 19 Building or upgrading systems; Chapter 20 PC diagnostics, testing, and maintenance.

606p haojiubujain03 04-08-2023 9 4   Download

Part 1 book "Upgrading and repairing PCS" includes content: Flash and removable storage; optical storage; video hardware; audio hardware; external I/O interfaces; input devices; internet connectivity; local area networking; power supplies; building or upgrading systems; PC diagnostics, testing, and maintenance.

593p oursky02 07-08-2023 9 5   Download

Bài viết Mô hình nút chuyển mạch gói toàn quang sử dụng kỹ thuật xử lý mào đầu MPPM cho mạng trung tâm dữ liệu đề xuất một mô hình kiến trúc nút chuyển mạch gói (OPS-Optical Packet Switching) toàn quang sử dụng khối xử lý mào đầu gói dựa trên kỹ thuật điều chế vị trí xung sửa đổi (MPPM-Modified Pulse Position Modulation), sử dụng cho các mạng trung tâm dữ liệu (DCN-Data Center Network).

7p viannee 02-08-2023 9 8   Download

In this paper, we study elastic optical networks utilizing multi-granular routing technique for provisioning dynamic lightpath services. We have developed a cost-effective coarse granular routing-based node architecture incorporating with an efficient dynamic control algorithm for coarse granular routing-based elastic optical network.

9p viannee 02-08-2023 7 4   Download