Wireless transmission

This study was conducted. Moreover, it is shown that choosing the best Tx/Rx parameters is necessary to meet service quality requirements such as BER and transmission confidentiality. The provided findings provide insightful information about the practical considerations of deploying UWOC/ CDMA systems.

11p viengfa 28-10-2024 3 1   Download

In this article, we establish a Digital Radio over Fiber (DRoF) information system with two wireless channels utilizing two advanced phase modulation techniques, namely Differential Phase Shift Keying (DPSK), for the CRAN connection and investigate parameters related to nonlinearity such as refractive index n2.

6p viengfa 28-10-2024 2 2   Download

Proposed solutions to improve the calculation speed for total transmit power minimum problem in multi-antenna wireless transmission network by using optimization techniques.

27p gaocaolon6 30-07-2020 41 3   Download

This chapter summarize the operation of Ethernet as defined for 100/1000 Mbps LANs in the IEEE 802.3 standard; explain the functions that enable a switch to forward Ethernet frames in a LAN; configure a switch for operation in a network designed to support voice, video, and data transmissions.

29p youcanletgo_01 29-12-2015 51 3   Download

Bài giảng Computer Networks 1 (Mạng Máy Tính 1): Lecture 2 do Dr. Phạm Trần Vũ biên soạn bao gồm những nội dung về tTheoretical basis for data communication, Guided transmission media, Wireless transmission, Digital subscriber lines, Internet over TV cables.

35p cocacola_17 09-12-2015 75 5   Download

Transmission Basics In data networking, transmit means to issue signals to the network medium Transmission refers to either the process of transmitting or the progress of signals after they have been transmitted

51p doanhung_dtvtk10 19-03-2013 88 11   Download

Guided - wire Unguided - wireless Characteristics and quality determined by medium and signal For guided, the medium is more important For unguided, the bandwidth produced by the antenna is more important Key concerns are data rate and distance

27p trada85 18-01-2013 62 6   Download

The demand of transmission of images and video is increasing quickly recently and researchers are trying to invest good solutions to improve the quality of these over wireless networks. There are still challenges due to the different characteristics and quality of images between wired and wireless channels. An important issue is congestion control to ensure network stability and achieve a reasonably fair distribution of the network resources among the users.

8p tuanlocmuido 19-12-2012 61 3   Download

Interface converter, for converting RS-232 to RS-422 and RS-485, with electrical isolation, 2 channels Bidirectional, wireless, 2400 MHz transmission system (European version), consisting of 2 transceivers (transmitter and receiver) and two antennas with connecting cable Fieldline Modular Wireless IO set, consisting of: Wireless IO base station for one Wireless IO terminal and Wireless IO device, 8 digital inputs, 8 digital outputs

23p buisontdtq 04-10-2012 51 9   Download

Network Security Identify security risks in LANs and WANs and design security policies that minimize risks Explain how physical security contributes to network security Discuss hardware- and design-based security techniques Use network operating system techniques to provide basic security Understand methods of encryption, such as SSL and IPSec, that can secure data in storage and in transit Describe how popular authentication protocols, such as RADIUS, TACACS, Kerberos, PAP, CHAP, and MS-CHAP, function Understand wireless security protocols, such as WEP, WPA, and 802.11...

56p itvovantien 13-07-2012 82 11   Download

WANs, Internet Access, and Remote Connectivity Identify a variety of uses for WANs Explain different WAN topologies, including their advantages and disadvantages Describe different WAN transmission and connection methods, including PSTN, ISDN, T-carriers, DSL, broadband cable, SONET, and wireless Internet access technologies Compare the characteristics of WAN technologies, including throughput, security, and reliability Describe the software and hardware requirements for remotely connecting to a network...

56p itvovantien 13-07-2012 77 11   Download

Topologies and Access Methods Describe the basic and hybrid LAN physical topologies, and their uses, advantages and disadvantages Describe the backbone structures that form the foundation for most LANs Compare the different types of switching used in data transmission Understand the transmission methods underlying Ethernet, Token Ring, FDDI, and ATM networks Describe the characteristics of different wireless network technologies, including Bluetooth and the three IEEE 802.11 standards

51p itvovantien 13-07-2012 73 12   Download

Transmission Basics and  Networking Media Explain basic data transmission concepts, including full duplexing, attenuation, and noise Describe the physical characteristics of coaxial cable, STP, UTP, and fiber-optic media Compare the benefits and limitations of different networking media Identify the best practices for cabling buildings and work areas Specify the characteristics of popular wireless transmission methods, including 802.11, infrared, and Bluetooth

52p itvovantien 13-07-2012 82 12   Download

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: Characterization of a Class of Error Correcting Frames for Robust Signal Transmission over Wireless Communication Channels

13p dauphong20 11-03-2012 44 4   Download

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 Integrated Source and Channel Rate Allocation Scheme for Robust Video Coding and Transmission over Wireless Channels

13p sting12 11-03-2012 46 2   Download

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: Interactive Video Coding and Transmission over Heterogeneous Wired-to-Wireless IP Networks Using an Edge Proxy

12p sting12 11-03-2012 46 4   Download

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: Layered Video Transmission on Adaptive OFDM Wireless Systems

11p sting12 11-03-2012 46 4   Download

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: Flexible Transmission Scheme for 4G Wireless Systems with Multiple Antennas

15p sting11 10-03-2012 39 5   Download

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: Research Article Collaborative Image Coding and Transmission over Wireless Sensor Networks

9p dauphong20 10-03-2012 44 3   Download

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: Research Article Energy-Efficient Transmission of Wavelet-Based Images in Wireless Sensor Networks

11p sting11 09-03-2012 47 3   Download