Describe the modes of wave propagation, Computer Engineering

Assignment Help:

Question :

a) Describe the following modes of wave propagation:

- Line of sight
- Ground waves
- Skywaves

b) Why can waves with a very low frequency be used for submarine communication? Give one reason why are they not used for data transmission in mobile phones and computer networks.

c) A Line-of-sight (LOS) is usually required between a sender and receiver for radio waves with frequency > 30 MHz, nevertheless, mobile phones can work in big cities without such LOS. Explain.

d) Spread spectrum is a technique which generates signals which are strong and loud, that is resistant to interference. Explain how this is achieved.

e) Briefly explain how directional and omni-direction antennas work. Is a directional antenna suitable for mobile phone communication?


Related Discussions:- Describe the modes of wave propagation

Define the terms- action semantics and argouml, Define the terms- Action Se...

Define the terms- Action Semantics and  ArgoUML Action Semantics : Action semantics is a group of firms that have responded to the OMG's RFP to define the action semantics fo

Determine the uses of smart cards, Determine the uses of Smart cards  ...

Determine the uses of Smart cards  These comprise embedded microchips and receive power from the card readers; Microchip is made up of RAM, ROM and 16-bit processor and the st

What is the working of domain expert, Q. What is the working of domain expe...

Q. What is the working of domain expert? ANSWER: The domain expert is the person who gives the domain expertise in the form of problem-solving strategies.

Generation of erp products, 1. How does this new generation of ERP products...

1. How does this new generation of ERP products differ from traditional solutions? 2. What are the major external forces driving competition in the ERP industry? Cloud comput

What is the maximum frequency of operation, For the circuit demonstrated be...

For the circuit demonstrated below, what is the Maximum Frequency of Operation? Are there any hold time violations for FF2? When yes, how do you modify the circuit to ignore them?

What is php, The PHP Hypertext Pre processor is a programming language that...

The PHP Hypertext Pre processor is a programming language that permits web developers to make dynamic content that interacts with databases. PHP is basically used for developing we

Explain dataflow computing, DATAFLOW COMPUTING A substitute to the Von ...

DATAFLOW COMPUTING A substitute to the Von Neumann model of calculation is dataflow computation model. In the dataflow model, control is tied to flow of data. Order of instruct

Explain the relationship b/w translated & load time address, Explain the re...

Explain the relationship amongst Translated address and Load time address. Translated address: Address assigned through the translator Load time address: Address ass

Ai applications, AI Applications Search is a crucial component of an AI...

AI Applications Search is a crucial component of an AI system, and the search functions are performed over large quantities of difficult structured data using unstructured inpu

Write Your Message!

Captcha
Free Assignment Quote

Assured A++ Grade

Get guaranteed satisfaction & time on delivery in every assignment order you paid with us! We ensure premium quality solution document along with free turntin report!

All rights reserved! Copyrights ©2019-2020 ExpertsMind IT Educational Pvt Ltd