Ask Question, Ask an Expert

+1-415-315-9853

info@mywordsolution.com

Ask Electrical & Electronics Expert

problem 1: A cellular system has a total of 500 duplex voice channels. The service area is divided to 150 cells. Recommend a three different cluster size (N) values. In each case, find out:

a) The number of cell clusters,

b) the maximum number of users which can be served simultaneously,

c) Discuss the effect of cluster size on the whole system capacity.

problem 2:

a) Describe how a CDMA system works?

b) Describe how Welsh-Hadamard codes are generated. Describe why orthogonality between different spreading codes is significant.

c) Consider an 8-user CDMA system.

The data vector of all users is given by: [1,1,1,1,-1,-1,-1,1].

Find out the total transmit signal.

problem 3: Consider a signal x(t) = 10 cos(2πfct + 4 cos 2πfmt). Assume that frequency modulation. The message frequency fm = 2:3 kHz. Compute the modulation index and find the bandwidth when

a) fm is doubled and
b) fm is reduced by one-half.

problem 4: A carrier is frequency modulated with a sinusoidal signal of 2 kHz, resulting in a maximum frequency deviation of 5 kHz.

a) Find out the bandwidth of the modulated signal (b) The amplitude of the modulating sinusoid is raised by a factor of 3, and its frequency is lowered to 1 kHz. Find out the maximum frequency deviation and the bandwidth.

Electrical & Electronics, Engineering

  • Category:- Electrical & Electronics
  • Reference No.:- M91331

Have any Question? 


Related Questions in Electrical & Electronics

1 at what point on the surface of the circular cylinder in

1. At what point on the surface of the circular cylinder in a potential flow does the pressure equal the free-stream pressure? 2. For the velocity potentials given below, find the stream function and sketch the streamlin ...

The swap operation is one of the components of the modern

The swap operation is one of the components of the modern block ciphers. a. Swap the word (10011011)2. b. Swap the word resulting from part a. c. Compare the results of part a and part b to show that swapping is a selfin ...

Consider two bar elements under a force at the tip using

Consider two bar elements under a force at the tip. Using the displacement controlled method, plot the load-displacement curve (F vs. u 2  and u 3 ). Increase the tip displacement u 3  up to 1.0 m by ten equal increments ...

1 what is the permittivity of free space what are its

1. What is the permittivity of free space? What are its units? 2. Describe the electric field due to a point charge. 3. How do you find the electric field intensity due to a continuous charge distribution? 4. How is curr ...

1 discuss the concept of unit and group patterns and their

1. Discuss the concept of unit and group patterns and their multiplication to obtain the resultant pattern of an array. 2. Distinguish between broadside and endfire radiation patterns. 3. Discuss the concept of an image ...

Problem 1 an amplifier is observed to have an output noise

Problem 1: An amplifier is observed to have an output noise rms-voltage of 1.0 μV. If the noise bandwidth is 25 kHz, determine the noise spectral density of the amplifier. Problem 2: A piezeoresistive sensor has a therma ...

For a uniform plane wave propagating in free space the

For a uniform plane wave propagating in free space, the apparent phase velocities along the x- and y-directions are found to be respectively. Find the direction of propagation of the wave.

1 what are the 3 positions of the toggle switch which one

1. What are the 3 positions of the toggle switch? Which one cannot be used? 2. Explain the configuration of a breadboard. What holes are connected? How is it powered? 3. What components in the circuits implemented in thi ...

1 when a doublet is added to a uniform stream so that the

1. When a doublet is added to a uniform stream so that the source part of the doublet faces the stream, a cylinder flow results. Plot the streamlines when the doublet is reversed so that the sink faces the stream. 2. A 2 ...

1 why is it necessary to have the minus sign associated

1. Why is it necessary to have the minus sign associated with the time rate of increase of magnetic flux on the right side of Faraday's law? 2. What is electromotive force? 3. What are the different ways in which an emf ...

  • 4,153,160 Questions Asked
  • 13,132 Experts
  • 2,558,936 Questions Answered

Ask Experts for help!!

Looking for Assignment Help?

Start excelling in your Courses, Get help with Assignment

Write us your full requirement for evaluation and you will receive response within 20 minutes turnaround time.

Ask Now Help with Problems, Get a Best Answer

Section onea in an atwood machine suppose two objects of

SECTION ONE (a) In an Atwood Machine, suppose two objects of unequal mass are hung vertically over a frictionless

Part 1you work in hr for a company that operates a factory

Part 1: You work in HR for a company that operates a factory manufacturing fiberglass. There are several hundred empl

Details on advanced accounting paperthis paper is intended

DETAILS ON ADVANCED ACCOUNTING PAPER This paper is intended for students to apply the theoretical knowledge around ac

Create a provider database and related reports and queries

Create a provider database and related reports and queries to capture contact information for potential PC component pro

Describe what you learned about the impact of economic

Describe what you learned about the impact of economic, social, and demographic trends affecting the US labor environmen