15-446 Networked Systems
Practicum
Lecture 1 – Introduction
1
Today’s Lecture
• Administrivia
• Topics and Overview
2
Instructors
• Instructors.
• Srini Seshan
• srini@cs.cmu.edu, Gates Hall 8123
• Teaching assistants.
• None (a couple informal ones )
3
Course Goals
• Learn about mobile system design
• Wireless networks
• Energy management
• Split application design
• Learn about security for networked systems
• Basic crypto techniques
• Privacy challenges in mobile systems
• DDoS
• Learn how to build systems that use the network
• Capstone project
4
Course Format
• ~20 lectures
• Cover the “principles and practice”
• Complete readings before lecture
• Readings based on recent systems/research papers
• 4 homework assignments
• “Paper”: Do you understand and can you apply the material?
• “Lab”: learn key system concepts
• Capstone-like project
• Midterm and final
• Covers each of the above 3 parts of class
5
Project
• Topic of your choice
• Discussion of topics next lecture
• Should have something to do with mobile computing
• Regular meetings (approximately 1 per 4 weeks)
• Final handin: code, presentation + demo, short (few
page) writeup
• Solo or in groups of 2
• Both students should understand the entire project
• Expectations of groups will be somewhat higher
6
Administrative Stuff
• Watch the course web page
• http://www.cs.cmu.edu/~srini/15-446/F11/
• Handouts, readings, ..
• Piazza for Q&A
• Office hours by appointment
• Course secretary
• Angela Miller, Gates 9118
7
Grading
• Roughly equal weight in projects and testing
•
•
•
•
45% for Project
15% for Midterm exam
20% for Final exam
20% for Homework/Participation
• You MUST demonstrate competence in both
projects and tests to pass the course
• Fail either and you fail the class!
8
Policy on Collaboration
• Working together is important
• Discuss course material in general terms
• Work together on program debugging, ..
• Final submission must be your own work
• Homeworks, midterm, final
• Web page has details
9
Late Work and Regrading
• Late work will receive a 15% penalty/day
• No assignment can be more than 2 days late
• No penalty for a limited number of handins - see web
page
• Only exception is documented illness and family
emergencies
• No assignments with a “short fuse”
• Start on time!
10
Today’s Lecture
• Administrivia
• Topics and Overview
11
Other Topics
• Supporting capstone projects
• Lectures topics will be added/changed to
match project topics and student interests
• Email me topics you want to learn about 
12
3 Sections
• Mobile Networking
• Networking/Mobile Security
• Mobile Systems
13
Mobile Networks
• Wireless Networks
•
•
•
•
802.11
Bluetooth
Mobile IP
Wireless + TCP
• Cellular Networks
• 3G/4G standards
• Mobility support
14
Mobile Networks
• RFID/NFC
• Phy + MAC layer protocols
• RFIDs with computation
• Scaling RFID protocols
• Energy Management
• Sleep modes in different technologies
• Using Proxies
• Protocol interactions with power management
15
Security
• Understanding types of security
• Privacy
• Confidentiality
• Authentication
• Internet related issues
• DoS/DDoS
• Spoofing
• Protocol design
16
Security
• Crypto basics
•
•
•
•
•
Public/symmetric key crypto
One-way hash functions
Merkel trees
Blind signatures
Identity-based encryption
• Privacy
•
•
•
•
Location privacy
Privacy policies
Mix networks/onion routing
Wireless privacy
17
Mobile Systems
• Energy
• Tracking techniques
• Sleep modes and energy management
• Display energy
• Transcoding and Mobile Optimization
• Offload and proxies
• Automated Web page rewriting
• Source content mangagement
18
Mobile Systems
• Sensor networks
• Sensor motes
• Participatory sensing
• Vehicular networks
• Network protocols
• Applications
19
Mobile Systems
• HCI Issues
• Designing applications for mobile devices
• Dealing with portability issues
• Advertising
• Ad networks and APIs
• Targeting techniques
• Click fraud and overheads
20
Next Lecture / HW
• Possible project topic discussion
• Intro to Android programming (part 1)
• HW
1. Download/install SDK
(http://developer.android.com/sdk/index.html)
2. Start with basic hello world exercise
(http://developer.android.com/training/basics/fi
rstapp/index.html)
21