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Chapter 2: Q8. (page 73)

Jamming attacks on wireless networks. Refer to the International Journal of Production Economics (Vol. 172, 2016) study of U.S. military jamming attacks on wireless networks used by terrorists, Exercise 1.16 (p. 50). Recall that 80 recent jamming attacks were classified according to network type (WLAN, WSN, or AHN) attacked and number of channels (single- or multi-channel) of the network. The results are summarized in the accompanying table.

Network Type/
Number of Channels

Number of
Jamming Attacks

WLAN / Single

31

WSN / Single

13

AHN / Single

8

WLAN / Multi

14

WSN / Multi

9

AHN / Multi

5

Total

80

a. Construct a Pareto diagram for the data. Interpret the results.

b. Construct a pie chart for network type only. Interpret the results.

Short Answer

Expert verified

a.

b.

Step by step solution

01

Preparing the Pareto diagram

The number of jamming attacks is shown in descending order in the Pareto diagram using the distribution of data as shown below:

Network Type/
Number of Channels

Number of
Jamming Attacks

Cumulative

Percentage

WLAN / Single

31

31

38.75

WLAN / Multi

14

45

56.25

WSN / Single

13

58

72.5

WSN / Multi

9

67

83.75

AHN / Single

8

75

93.75

AHN / Multi

5

80

100

Total

80

The orange line represents the cumulative line which is derived as a percentage in the secondary vertical axis.

02

Formating the pie chart

Through the pie chart, one can find to what extent each network faces jamming attacks compared to the others.The larger the pie slice, the greater the number of jamming attacks; and the smaller the slice, the lesser is the number of jamming attacks.

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Most popular questions from this chapter

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Wave 1

Wave 4

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University

Public/

Private

Academic Reputation Score

(100 pt. scale)

Average Financial Aid Awarded

Average Net Cost Attend

Median Salary During Early Career

% High Meaning

%Stem Degrees

1

Harvard University

Private

99

\(41,555

\)14,455

\(61,400

65%

28%

5

Yale University

Private

97

\)39,771

\(18,479

\)60,300

68%

21%

20

University of

California Berkeley

Public

79

\(16,141

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50%

31%

23

University of Virginia

Public

76

\)16,834

\(12,672

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52%

24%

27

Carnegie Mellon

University

Private

76

\(24,263

\)33,257

\(64,700

46%

51%

47

Pepperdine University

Private

60

\)29,926

\(25,345

\)48,300

51%

4%
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