Knowledge in DATA COMMUNICATION & NETWORKING
DATA COMMUNICATION & NETWORKING
This clip contains notes of DATA COMMUNICATION & NETWORKING for the students of B.Tech 2ND Year.
Shivam Sharma
CS1128 HIGH SPEED NETWORKS
UNIT I - HIGH-SPEED NETWORKS (9 hours) Introduction-frame relay networks –ATM protocol architecture-ATM logical connection –ATM cells-ATM service categories -AAL- high-speed LANS: the emergence of high-speed LANs-Ethernets-fiber channel-wireless LANS
ANSHU RATHOUR
CS1128 HIGH SPEED NETWORKS
UNIT I - HIGH-SPEED NETWORKS (9 hours) Introduction-frame relay networks –ATM protocol architecture-ATM logical connection –ATM cells-ATM service categories -AAL- high-speed LANS: the emergence of high-speed LANs-Ethernets-fiber channel-wireless LANS
Data. communication
Data Communication (DC) Materials & Notes. DC Unit Wise Lecture Notes and Study Materials in pdf format for Engineering Students. This DC Study Material and DC Notes & Book has covered every single topic which is essential for B.Tech/ BE Students. Data Communication Study Materials provided here is specifically prepared for engineering colleges.
Sourav Jha
ANTENNA ENGINEERING
An antenna is defined by Webster’s Dictionary as “a usually metallic device (as a rod or wire) for radiating or receiving radio waves.” The IEEE Standard Definitions of Terms for Antennas (IEEE Std 145–1983)∗ defines the antenna or aerial as “a means for radiating or receiving radio waves.” In other words the antenna is the transitional structure between free-space and a guiding device, as shown in Figure 1.1. The guiding device or transmission line may take the form of a coaxial line or a hollow pipe (waveguide), and it is used to transport electromagnetic energy from the transmitting source to the antenna, or from the antenna to the receiver. In the former case, we have a transmitting antenna and in the latter a receiving antenna. A transmission-line Thevenin equivalent of the antenna system of Figure 1.1 in the transmitting mode is shown in Figure 1.2 where the source is represented by an ideal generator, the transmission line is represented by a line with characteristic impedance Zc, and the antenna is represented by a load ZA [ZA = (RL + Rr ) + jXA] connected to the transmission line. The Thevenin and Norton circuit equivalents of the antenna are also shownin Figure 2.27. The load resistance RL is used to represent the conduction and dielectric losses associated with the antenna structure while Rr , referred to as the radiation resistance, is used to represent radiation by the antenna. The reactance XA is used to represent the imaginary part of the impedance associated with radiation by the antenna. This is discussed more in detail in Sections 2.13 and 2.14. Under ideal conditions, energy generated by the source should be totally transferred to the Radiation resistance Rr , which is used to represent radiation by the antenna. However, in a practical system there are conduction-dielectric losses due to the lossy nature of the transmission line and the antenna, as well as those due to reflections (mismatch) losses at the interface between the line and the antenna. Taking into account the internal impedance of the source and neglecting line and reflection (mismatch) losses, maximum power is delivered to the antenna under conjugate matching.
Shantha Kumar . V
Data Networking
Complete notes on data networking and communication with block diagrams and pictures
Hrithik Anand
yash pal
Data Communications
End Semester 2017 Question Paper of Data Communications of Birla Institute of Technology, Mesra
data communication and computer networking
data communication and computer networking
Aaishika Rana
data communication and computer networking
data communication and computer networking
data communication and computer networking
data communication and computer networking
data communication and computer networking
data communication and computer networking