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

Election polls oversight a reflection on forecast accuracy

Election Polls Oversight: A reflection on Forecast Accuracy and Bias The media, locally and internationally, has been labeling this Election results as Unexpected, based on early predictions that did not realize. We kept ...

1 outline the steps involved in the magnetoquasistatic

1. Outline the steps involved in the magnetoquasistatic field analysis of a parallel plate structure and the determination of its input behavior. Compare the input behavior with the magnetostatic case. 2. Outline the ste ...

Ohms law problemsquestion 1an alarm clock draws 05 a of

Ohm's Law Problems Question 1 An alarm clock draws 0.5 A of current when connected to a 120 volt circuit. Calculate its resistance. a) 150 ohms b) 120 ohms c) 60 ohms d) 240 ohms Question 2 If one 9 volt battery is used ...

An output interface in a switch is designed using the leaky

An output interface in a switch is designed using the leaky bucket algorithm to send 8000 bytes/s (tick). If the following frames are received in sequence, show the frames that are sent during each second. ? Frames 1, 2, ...

1 rework problem with the assumption that the momentum of

1. Rework Problem with the assumption that the momentum of the incoming air at section (1) is zero. Determine the exit velocity, v, and the magnitude of the pressure drop at section (1). 2. Air of density 1.21 kg/m 3  is ...

Solve problem using force equilibrium ie internal force

Solve Problem using force equilibrium; i.e., internal force caused by stress is equal to external force. Problem A force F is applied at the tip of the uniform bar element shown in the figure. The initial length and the ...

1 implement the 2-to-4 decoder using 7404 not an 7808 and

1. Implement the 2-to-4 decoder using 7404 (NOT) an 7808 (AND) chips on your breadboard. 2. Implement the 2-to-4 decoder circuit with a 74139 chip on your breadboard. 3. Implement a 1-to-2 decoder in Logisim. Implement t ...

1 what is a uniform plane wave2 why is the study of uniform

1. What is a uniform plane wave? 2. Why is the study of uniform plane waves important? 3. How is the surface current density vector defined? Distinguish it from the volume current density vector. 4. How do you find the c ...

A clean 15--efficient module stc 1 m2 in size has its own

A clean, 15-%-efficient module (STC), 1 m 2 in size, has its own 90% effi- cient inverter. Its NOCT is 44° C and its rated power degrades by 0.5%/° C above the 25° C STC. a. What would its STC rated power be? b. Find the ...

1 discuss the application of the gradient concept for the

1. Discuss the application of the gradient concept for the determination of unit vector normal to a surface. 2. How would you find the rate of increase of a scalar function along a specified direction by using the gradie ...

  • 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

WalMart Identification of theory and critical discussion

Drawing on the prescribed text and/or relevant academic literature, produce a paper which discusses the nature of group

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