i-DEN Integrated Digital Enhanced Network

Integrated Digital Enhanced Network, commonly referred to as iDEN, is a mobile communications technology, developed by Motorola, which provides its users the benefits of a trunked radio and a cellular telephone.

Sprint Nextel is the largest US retailer of iDEN services. iDEN places more users in a given spectral space, compared to analog cellular systems, by using time division multiple access (TDMA). Up to six communication channels share a 25 kHz space ....etc

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gooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooood ....etc

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A computer network is any arrangement of computers where a sender transmit a message to receiver over a channel consisting of some type of medium
Various kinds of computer network are-
• On the basis of function performed:
1. (LAN) local area network- A local area network (LAN) supplies networking capability to a group of computers in close proximity to each other such as in an office building, a school, or a home. A LAN is useful for sharing resources like files, printers, games or other applications. A LAN in turn often connect ....etc

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ABSTRACT:
DTH is a new technology and it has matured to its full potential in other parts of the world. There are many applications that has been found everyday for exploitation of benefits of DTH.
The word ‘DTH’ is synonymous with transmission of digital video channel to home subscriber’s using a small dish antenna. The DTH utilizes a technology which enables a home to receive high speed internet broadband access data communication, voice over internet protocol (VOIP) telephony and much more using an open s ....etc

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Integrated Digital Enhanced Network, commonly referred to as iDEN, is a mobile communications technology, developed by Motorola, which provides its users the benefits of a trunked radio and a cellular telephone. Sprint Nextel is the largest US retailer of iDEN services. iDEN places more users in a given spectral space, compared to analog cellular systems, by using time division multiple access (TDMA). Up to six communication channels share a 25 kHz space; some competing technologies place only one channel in 12.5 kHz.
iDEN is available in othe ....etc

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The Application of Back Propagation Neural Network of Multi-channel Piezoelectric Quartz Crystal Sensor for Mixed Organic Vapours

Abstract
A multi-channel piezoelectric quartz crystal sensor with a
homemade computer interface was prepared and employed in the
present study to detect mixture of organic molecules. Back
propagation neural network (BPN) was used to distinguish the
species in the mixture organic molecules and multivariate linear
regression analysis (MLR) was used to compute the concentration
of ....etc

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Abstract—
In order to get reliable communication no matter
under the water or above the surface, a kind of multi channel
and distributed wireless communication network architecture
for UUVs was presented. This network architecture includes
underwater communication, surface communication and
internal communication. Underwater communication is
acoustic modem, and the surface communication consists of
RF, Wi-Fi, BeiDou. Internal communication portal is
TCP/UDP. In order to avoid interference and decrease the
navigation resistanc ....etc

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GUIDED BY:
Ms. SUNITA PRASAD
C-DAC NOIDA


PRESENTED BY:
FAISAL SIDDIQUI
MTECH(CSE) 3rd Sem





OBJECTIVE
To study the different types of Scheduling algorithms in WiMAX.



To Analysis the QOS of different types of Scheduling algorithms.



To purpose a hybrid Scheduling algorithm for improving the QOS.


Opnet Workflow

OPNET MODELER is a network simul ....etc

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Why fiber?
Speed- operates at high speed upto gigabits
Bandwidth- large carrying capacity
Resistance- to EM noise
Provide electrical isolation
Distance- Signals can be transmitted further without need of repeaters
Maintenance cost- less
Requirements of digital fiber link
No. of digital signal – 8
No. of fiber cable – 1
Signal frequency- 0-20KHz
I/p-O/p voltage level- 0 & 24 V for (0 & 1 digital logic)
Transmission Range- 300m
Here, we have selected HFBR-1521 transmitter and HFBR-2521 receiver ....etc

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Presented By
Sukanta Sen
Animesh Saha
Siddhartha Sarkar
Santiram Karmakar

Introduction :-
What is file
A file is the smallest allotment of logical secondary storage.
What is a file system
Files are managed by the operating system. The part of the operating system dealing with files & how they are structured, named, accessed, used, protected is known as File System.




Different types of File System
Windows File Systems
....etc

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