Compen/EE 362
Asst. 3 Solution
Spring 2011
Problem 1. A radio signal in free space has its power reduced in
proportion to the inverse of the square of the distance from the
antenna. Note that this is
Broadband wireless IEEE Standard 802.16.
High rate from network to/from home/office.
Differences from 802.11 objectives:
Non-mobile + 4G mobile, Fixed wireless
Full Duplex
Longer distances
Support voi
Compen/EE 362
Asst. 6 Solution.
Fall 2010
Problem 1. Three stations, A, B and C, are attached to a common cable as shown. The stations are using CSMA/CD. Propagation times (one way) are shown.
a) Draw
Spatially Distributed
Queues II
M/G/1
2 Servers
N servers: Hypercube Queueing Model
Approximations
Setup: Hypercube
Queueing Model
Region comprised of geographical atoms
or nodes
Each node j is an ind
Networks: Lecture 1
Amedeo R. Odoni
November 15, 2006
* Thanks to Prof. R. C. Larson for
some of the slides
General Comments
From continuous to a more discretized travel
environment
Enor
1.203J, 6.281J, 15.073J, 16.76J, etc.
Logistical and Transportation Planning Methods
Some Important Heuristics for the TSP
We summarize below some of the principal characteristics of a number of
the b
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Chapter 3
Power Factor and Me
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Chapter 5
Introduction to DC/
Networks: Lecture 2
Amedeo R. Odoni
November 20, 2006
Outline
Generic heuristics for the TSP
Euclidean TSP: tour construction, tour
improvement, hybrids
Worst-case performance
Probabilistic an
Queueing Systems: Lecture 6
Amedeo R. Odoni
November 6, 2006
Lecture Outline
Congestion pricing in transportation: the
fundamental ideas Congestion pricing and queueing theory Numerical example
Fall 2006
Urban OR (1.203J/6.281J/etc.)
Congestion Pricing and Queueing Theory
Congestion Pricing
Congestion costs due to any specific user have 2 components:
(1) Cost of delay to that user (interna
Queueing Systems: Lecture 3
Amedeo R. Odoni
October 18, 2006
Announcements
PS #3 due tomorrow by 3 PM
Office hours Odoni: Wed, 10/18, 2:30-4:30;
next week: Tue, 10/24
Quiz #1: October 25, open b
Queueing Systems: Lecture 4
Amedeo R. Odoni
October 20, 2006
Lecture Outline
M/G/1: a simple example
Introduction to systems with priorities
Representation of a priority queuing system
The M/G/1 non-p
Queueing Systems: Lecture 5
Amedeo R. Odoni
October 30, 2006
Lecture Outline
A fundamental result for queueing networks State transition diagrams for Markovian
queueing systems and networks: exam
Announcements
PS #3 out this afternoon
Queueing Systems: Lecture 1
Amedeo R. Odoni
October 4, 2006
Due: October 19 (graded by 10/23)
Office hours Odoni: Mon. 2:30-4:30
- Wed. 2:30-4:30 on Oct. 1
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Chapter 4
Phase-controlled Re
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Problem Set ff5
Issued: November 8,2006
Due: November 20,2006
Problem 1
Consider a I-mile-by-Smile h ~ o p e o sertice regon s e n d by two mobile patrollin3
u~
sewers as shown i Figure I. H m are the
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Urban OR
Fall 2006
Problem Set 6
(Due: Wednesday, December 6, 2006)
Problem 1
Problem 6.6 in Larson and Odoni
Problem 2
Exercise 6.7 (page 442) in Larson and Odoni.
Problem 3
Suppose we have a network
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Chapter 2
Introduction to Rec
Urban OR
Fall 2006
Problem Set 4
(Due: Wednesday, November 8, 2006)
Problem 1 [This is a review problem on M/G/1 queues. We have already done the first
four parts in class, as an example.]
Consider a
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Urban OR
Fall 2006
Problem Set 3
(Due: Thursday, October 19, 2006)
[Please note: Despite including seven problems, this assignment is not a long one. Most
of the problems, with the possible exception
1.203J / 6.281J / 13.665J / 15.073J / 16.76J / ESD.216J
Logistical and Transportation Planning Methods
Problem Set #2
Issued: September 25, 2006
Due: October 4, 2006
Problem 1
Mendel arrives at a rand
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