Solution 8 (EECS 333) Introduction to Communication Networks
Prof. Dongning Guo
June 1, 2007
Problem 1
Routing Table
Solution:
The subnet mask is 11111111.11111111.11111111.10000000.
(a) 128.96.39.10, after applying the mask, itll be 128.96.39.0, therefor

Solution 3 (EECS 333) Introduction to Communication Networks
Prof. Dongning Guo
May 4, 2007
Problem 1
Random Access
1
Problem 2
Channelization: FDMA, TDMA and CDMA
Solution:
We adopt the setup on the textbook [p.417, Leon-Garcia and Wadjaja]. Assume that

Solution 4 (EECS 333) Introduction to Communication Networks
Prof. Dongning Guo
April 24, 2007
Problem 1
FEC vs. ARQ
1. Note the pattern for a (n, k ) Hamming code is n = 2m 1, k = 2m m 1, where m is the
number of parity bits. And one can easily check dmi

Journal of Computer and Communications, 2015, 3, 164-173
Published Online May 2015 in SciRes. http:/www.scirp.org/journal/jcc
http:/dx.doi.org/10.4236/jcc.2015.35021
Internet of Things (IoT): A Literature
Review
Somayya Madakam, R. Ramaswamy, Siddharth Tr

Solution 6 (EECS 333) Introduction to Communication Networks
Prof. Dongning Guo
May 12, 2007
Problem 1
Wired vs. Vireless LANs
Solution:
1.
2. Both wired LAN and wireless LAN use physical layer and MAC layer.
Problem 2
LAN Bridges
Solution:
B1
Station Por

Solution 3 (EECS 333) Introduction to Communication Networks
April 15, 2007
Problem 1
Signal Attenuation
Solution:
1. 20 dB / 0.7 dB 28.57 km.
2. Because 20 dB = 100, we want the distance d such that (1/2)d = 1/100, which gives d 6.64 km.
Problem 2
Rate,

Problem 10 a) (1.a.4) The delay of packet 2 is 7 slots. The delay of packet 3 is 9 slots. The delay of packet 4 is 8 slots. The delay of packet 5 is 7 slots. The delay of packet 6 is 9 slots. The delay of packet 7 is 8 slots. The delay of packet 8 is 8 sl

Answers to the questions in Assignment 6
1. The correct statements are: 1.1 and 1.2 1.4: A sine signal has only one frequency. 2. The correct statements are: 2.1 and 2.3 2.2: The signal can be represented by a Fourier series that has infinite number of fr

Chapter 5 Review Questions 7. 248 MAC addresses; 232 IPv4 addresses; 2128 IPv6 addresses. 13. After the 5th collision, the adapter chooses from cfw_0, 1, 2, 31. The probability that it chooses 4 is 1/32. It waits 204.8 microseconds. 14. 2 (the internal su

Solutions to Assignment 2 Questions
1. Problem P1, Chapter 2 a) b) c) d) False True False False
2. Problem P4, Chapter 2 a) 2.a.1: The document request was http:/gaia.cs.umass.edu/cs453/index.html. The Host : field indicates the server's name and /cs453/i

Solutions to Assignment 1 Questions
1. Problem 3, Chapter 1 a) We can n connections between each of the four pairs of adjacent switches. This gives a maximum of 4n connections. b) We can n connections passing through the switch in the upper-right-hand cor