Advantages of digital communication system over analog communication system
Communication systems
 The block diagram on the top shows the blocks common to all communication systems
Remember the components of a communications system:
 Input transducer: The device that converts a physical signal from source to an electrical, mechanical or electromagnetic signal more suitable for communicating
 Transmitter: The device that sends the transduced signal
 Transmission channel: The physical medium ....etc

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A Novel Secure Communication Protocol for Ad Hoc networks
Abstract: An ad hoc network is a self organized entity with a number of mobile nodes without any centralized access point and also there is a topology control problem which leads to high power consumption and no security, while routing the packets between mobile hosts. Authentication is one of the important security requirements of a communication network. The common authentication schemes are not applicable in Ad hoc networks. In this paper, we propose a secure communication prot ....etc

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The Robot control using the wireless communication and the serial communication



Executive Summary
The NASA Robotics Alliance Cadets Program is being designed to be implemented at a
very low start-up cost, and to make this goal obtainable, the program is being developed
using low to no cost components from already developed, well-tested and robust
engineering testbeds.
In this project we are trying to establish both wireless communication between the mob ....etc

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kindly send this material....I need this notes for teaching purpose.
i need for reference.for students purpose i am going to use ....etc

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transmitter circuit and receiver circuit diagram for optical communication based counter. and documentation ....etc

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Broadcasting and gossiping are fundamental tasks in network communication. As communication networks grow in size, they become increasingly vulnerable to component failures. Some links and/or nodes of the network may fail. It becomes important to design communication algorithms in such a way that the desired communication task be accomplished efficiently in spite of these faults, usually without knowing their location ahead of time.

In this seminars, we can review the history of Fault-Tolerant broadcasting and gossiping research, and pr ....etc

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LEON SPARC V8 Processor


Features

Implements a 32-bit SPARC V8 processor.
Separate instruction and data caches, hardware multiplier and divider, interrupt controller
Debug Support Unit (DSU) with trace buffer, two 24-bit timers, two UARTs
16-bit I/O port, flexible memory controller, Ethernet MAC ,PCI interface.
New modules can easily be added using the on-chip AMBA AHB/APB buses.

Integer Unit

5 stage pipelined
configurable number of Register Windows (2 - 32). Default setting of 8.
Up t ....etc

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Broadcasting and gossiping are fundamental tasks in network communication. As communication networks grow in size, they become increasingly vulnerable to component failures. Some links and/or nodes of the network may fail. It becomes important to design communication algorithms in such a way that the desired communication task be accomplished efficiently in spite of these faults, usually without knowing their location ahead of time.

In this seminars, we can review the history of Fault-Tolerant broadcasting and gossiping research, and pr ....etc

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transmitter circuit diagram, receiver circuit diagram. and documentation. ....etc

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http://freespaceopticsfreespaceoptics/images/flightstrata_photo.jpg
Free space optical communications is a line-of-sight (LOS) technology that transmits a modulated beam of visible or infrared light through the atmosphere for broadband communications. In a manner similar to fiber optical communications, free space optics uses a light emitting diode (LED) or laser (light amplification by stimulated emission of radiation) point source for data transmission. However, in free space optics, an energy beam is collimated and transmitted t ....etc

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