Wireless Communications

EE 381K-11, Unique 16890, Spring 2011
Professor Ted Rappaport
TTH 5:00 - 6:30
ENS 127



The projects page can be accessed through this link

Update: Project due date, hard and soft copy due in office & email by Friday(29th) at 3pm. 
Class is cancled for today (28 Apr. 2011)

Powerpoint slides due Saturday, Apr 30 by 5pm.

All students must attend all presentations during the week of 3-7 May

-Written Project Reports are due by electronic transmission and in paper format, by 5pm Thursday, April 28, 2011. There will not be any extensions allowed. You will incur severe grading penalties if you miss this deadline. 

Powerpoint or PDF presentations are due by electronic submission no later than 5pm Saturday, April 30, 2011. 

It is critical that you meet these deadlines so that the projects may be uploaded for all students to read and review prior to your presentation. Presentations shall be made at random and assigned to you on Monday, May 1, 2011.

Homework 5 Assigned March 22, Due April 5, 2011

Verizon Field Trip is confirmed for April 12, 2011. Meet in the classroom for a demonstration of wireless tools and an overview of the Verizon Network, and then we will walk to the Stadium to see an actual 3G base station and backhaul system.

IMPORTANT INFORMATION FOR Proposals: A thorough, detailed, written proposal based on feedback from your pre-proposal must be turned in, both in electronic form and in hard-copy paper form, before class on Thursday February 24, 2011.  The proposal should be 15 – 20 written pages, plus figures and references, providing a very clear, detailed approach, and initial findings for your final project.  Attributions must be given to ideas presented in your proposals, and all figures must be properly cited if they are adapted from other sources (you should not directly copy figures from other sources, as this requires copyright approval). All figures and text must be clear, legible, with sufficiently large font to be read easily by others. All citations must be complete and in IEEE format.  Each student must also email a powerpoint (ppt) presentation by noon of February 24, 2011, free from viruses, that he or she will present during a 5 minute time slot during the February 24, 2011 class period. Evaluation forms will be provided for all students to provide feedback on the presentations. For examples of past proposals & projects which are less detailed than required, please see this page.

All students will provide written feedback to presenters using the following forms:
Proposal Review Form
Presentation Review Form

Interesting paper - A Simulation of Cellular System Growth and its Effect on Urban In-Building Parasitic Frequency Reuse


Homework and Quizzes Assigned

Assignment 1: Assigned 1/18; Due 1/27: Problems 1.10, 1.11, 1.14, 1.18, 1.21 (include 3G and 4G as one category) Solutions HW1

Assignment 2: Assigned 1/27; Due 2/3: Problems 9.2, 9.3, 9.10, 9.11, 3.1, 3.2, 3.3, 3.4, 3.6, 3.7 Solutions HW2

Assignment 3: Assigned 2/3; Due 2/15: Problems 3.8, 3.10, 3.11, 3.12, 3.16, 3.17, 3.28, 3.29 Solutions HW3

Assignment 4: Assigned 2/15; Due 3/8: Problems 4.4, 4.6, 4.7, 4.8, 4.9, 4.11, 4.12, 4.16, 4.18, 4.22, 4.26, 4.27, 4.31 Solutions HW4

Assignment 5: Assigned 3/22; Due 4/5: Problems 5.2, 5.3, 5.4, 5.5, 5.7, 5.9, 5.14, 5.16, 5.17, 5.20, 5.27, 5.28 Solutions HW5

Assignment 6: Assigned 4/7; Due 4/26: Problems 6.7, 6.9, 6.12, 6.17, 6.23, 6.24, 6.25, 6.31, 6.36, 6.37 Solutions HW6

Quz and Exam Solutions

Quiz 1 Solutions

Quiz 2 Solutions

Quiz 3 Solutions

Quiz 4 Solutions

Class Information

Introduction to fundamental aspects of wireless communications. Cellular system design, channel modeling, radio propagation, cellular concepts, fading and multipath countermeasures (equalization, diversity, channel coding), spread spectrum, and basic multiple access techniques.



Graduate standing plus Electrical Engineering 351K and 371M, or their equivalents.


Instructor Information

Instructor: Dr. Ted. S. Rappaport
Office Location: ENS 433A
Office Hours: Wednesdays, 3:00 - 5:00, Thursdays 10:30-11:30am (when I am in town), ENS 433A

Required Text

Wireless Communications: Principles and Practice, 2nd Edition
Theodore S. Rappaport
Prentice Hall, 2002
ISBN 9780130422323



Homework will be assigned and graded. Homework is due at the beginning of class. Your grade will be determined by homework and several quizzes to be given at the beginning of class. Quizzes shall be announced ahead of time, and shall follow the homework and examples in the text.

  • Homework............................... 15%
  • Quizzes .................................. 35%
  • Written Project Proposal ............ 10%
  • Final Oral Project Presentation .... 10%
  • Final Written Project Report ....... 30%


Honor Policy

Faculty in the ECE Department are committed to detecting and responding to all instances of scholastic dishonesty and will pursue cases of scholastic dishonesty in accordance with university policy. Scholastic dishonesty, in all its forms, is a blight on our entire academic community. All parties in our community -- faculty, staff, and students -- are responsible for creating an environment that educates outstanding engineers, and this goal entails excellence in technical skills, self-giving citizenry, and ethical integrity. Industry wants engineers who are competent and fully trustworthy, and both qualities must be developed day by day throughout an entire lifetime. Scholastic dishonesty includes, but is not limited to, cheating, plagiarism, collusion, falsifying academic records, or any act designed to give an unfair academic advantage to the student. Penalties for scholastic dishonesty are severe and can include, but are not limited to, a written reprimand, a zero on the assignment/exam, re-taking the exam in question, an F in the course, or expulsion from the University. Please do not jeopardize your career by an act of scholastic dishonesty. Details about academic integrity and what constitutes scholastic dishonesty can be found at the website for the UT Dean of Students Office and the General Information Catalog, Section 11-802.

Course Projects

Students shall submit written pre-proposals with an early draft of their intended research interests by February 10 at the beginning of class. This pre-proposal should include a complete bibliography that identifies key technical journals, web sites, or standard bodies that are of interest to you, and a detailed description of a few potential topics.

Student proposals shall be presented and due in late February (February 24), during the class period. Students shall have four free research days on March 10, March 22, March 24, and April 21, and are invited to meet with me to discuss research topics, references, and cutting edge trends in wireless communications throughout the semester. The written proposal shall be a 15 - 20 page typewritten document, plus figures and a complete bibliography and literature search, demonstrating the student's current knowledge and area of interest for the final project. Project Proposals shall be presented in five-minute intervals during the February 24 class. Final presentations will be given in a symposium format during the last week of class.

Course Project PreProposals. Due Feb. 10, 2011 at start of class (and email them to me in PDF form by this deadline, as well).

PreProposal Requirements: 6 to 12 written pages, not including figures and references, on a focused topic of interest. Preproposal must include:

  1. An extensive literature review/reference search of your topic of interest (30%) that supports your preproposal;
  2. A clearly written preproposal that articulately identifies the current state of the art, key results, recent accomplishments and leadership/trends within your topic of interest (30%)
  3. A clearly written justification for your proposed topic of study for the final project, including one or two key ideas that are carefully spelled out and defended, based on a, and b, above, and which clearly motivate what specific areas you wish to pursue for a final project, based on your findings. Your proposed topic of study should include a work plan and estimated final outcomes (40%)
  4. Your proposals should be professionally prepared, typed, formatted in a professional, appealing way, and should be prepare with proper grammar, punctuation, spelling. References should be cited using standard IEEE or technical publishing rules. Your proposal should clearly state why the topic is of interest to yourself and to the class, and what value will come from your proposed study.

We will then discuss, one on one, your preproposal within five day, and you will then lock in to your project subject by Feb. 15.

Final project proposals and 5-minute in class presentations will be given by each student on February 24, 2011.

Research topics should consist of a student's favorite area and may include the following suggested topics:

  • MIMO
  • OFDM Modulation
  • Blast and V-Blast OFDM
  • Current Emerging Wireless Standards
  • WiMax and LTE
  • Personal Area Networks
  • Wigwam
  • Software Defined Radios
  • Broadcast Channels and Information Theory
  • Cooperative Networking
  • Other wireless topics that interest you


Lecture Schedule

DateTopicReading AssignmentsImportant Events in Class
1/18 Introduction to Wireless Communications Ch. 1, pp. 1-21, Appendix B  
1/20 3G Standards - World Development, Multiple Access Techniques Ch. 2, pp. 25-40, Ch. 9  
1/25 Evolution of Wireless Broadband Ch. 2, pp. 40-54, Ch. 9  
1/27 The Cellular Concept, Cellular System Design Fundamentals Ch. 3, pp. 57-77, Appendix B  
2/1 The Cellular Concept, Cellular System Design Fundamentals Ch. 3, pp. 57-96, Appendix B  
2/3 Trunking, GOS, Cell-Splitting, SIR Ch. 3, pp. 77-96, Appendix A  
2/8 Antennas, Propagation, Fundamentals Ch. 4, pp. 105-114

Quiz at Beginning of Class

2/10 Cellular System Examples  

Written Pre-Proposals Due at the beginning of class
Interesting paper - A Simulation of Cellular System Growth...

2/15 2-Ray Ground Reflection Ch. 4, pp. 120-125  
2/17 Link Budget, Log-Normal Shadowing Ch. 4, pp. 138-144, Appendix F Quiz at Beginning of Class
2/22 Link Budget, Log-Normal Shadowing Ch. 4, pp. 138-144, Appendix F  
2/24 Proposals Due; Student Proposal Presentations   Research Proposals Due, Presentation by Students
3/1 Outdoor Path Loss, Hata Model, Log-Normal Shadowing, Indoor Path Loss Ch. 4, pp. 145-167  
3/3 Wideband vs. Narrowband Channels, Level Crossing Rate & Average Fade Duration Ch. 5, pp. 199-210  
3/8 Rayleigh, Rician, Clarke & Gans Model, Level Crossing Rate & Average Fade Duration Ch. 5, pp. 210-229 Quiz at Beginning of Class
3/10 Free Research Day   Project Research
3/15 Spring Break    
3/17 Spring Break    
3/22 Free Research Day   Project Research
3/24 Free Research Day   Project Research
3/29 Rayleigh, Rician, Clarke & Gans Model, Level Crossing Rate & Average Fade Duration Ch. 5, pp. 210-229 Clarke and Gans Fading Model Papers
Smith's Multipath Fading Simulation
3/31 Digital Modulation, FM Quadriature Detection, Line Coding, Nyquist Pulse Shaping, Gaussian Pulse Shaping Ch. 6, pp. 264-294  
4/5 Linear Modulation, BPSK, DPSK, QPSK, pi/4 QPSK, Constant Envelope, MSK, GMSK, BER Ch. 6, pp. 294-322  
4/7 Spread Spectrum, SH/FH, Performance in AWGN Ch. 6, pp. 329-339 Quiz at Beginning of Class
4/12 Visit to Verizon Wireless Cell Site on campus -Confirmed   Meet in class at 5pm sharp for lecture by Verizon, then we will walk to the stadium to see a base station. Bring comfortable walking shoes.
4/14 Bit Error Performance in Fading Channels Ch. 6, pp. 339-350, Fading Channel Issues in System Engineering
4/19 Free Research Day    
4/21 Free Research Day    
4/26 Equalization Ch. 7, pp. 355-380  

Antenna Diversity
Final Written Projects due by Fri Apr. 29 at 3pm

Ch. 7, pp. 380-394 ENS 127 will be open to test A/V equpiment for presentations
5/3 Project Presentations -Presentation Review Form Presentation Schedule Additional presentations to be scheduled the weekend before finals
5/5 Project Presentations -Presentation Review Form Presentation Schedule Additional presentations to be scheduled the weekend before finals
5/7 Project Presentations -Presentation Review Form Presentation Schedule Project Presentations from 1 PM to 5:30 PM on Saturday, May 9, in ENS 127.

Quick Links


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    Leslie Cerve, Administrative Assistant
    Emial: cerve@cs.nyu.edu