Computer Science

Networking - Physical Layer

Quarter: Fall 2003

Instructor Revaz Dzhanidze
TA Justin Lomheim
Lecture Location/Time T/Th, 2-4PM, BH 9436
Lab 1A Location/Time W 10AM-12PM, BH 3704
Lab 1B Location/Time W 2-4PM, BH 3704


FYI: The Final Exam will be 12/12/03, 11:30-3:00; Room 9436 BH

  • Wednesday, December 17, 2003 12:30PM - Final grades are posted, but in numeric format. The professor will use these as a basis to assign letter grades.
  • Monday, December 8, 2003 4:30PM - Since nobody emailed me over the weekend asking to meet me on campus, I didn't come to school. But, if you still need help, you can email me directly, or talk with me after the final exam on Friday.
  • Thursday, December 4, 2003 3:41 AM - If your project is lab 6, the project page has some notes for you.
  • Thursday, December 4, 2003 3:19 AM - I've posted the Bluetooth slides, notes, and paper. Also, there is one last homework assignment, due 12/10, posted. I will be out of town Thursday & Friday, but if you need extra help, please email me and I will post Friday night what time I'll be on campus over the weekend. The class final exam will be 12/12/03, 11:30-3:00; Room 9436 BH. I've updated the grades page, but I haven't graded a lot of material yet. I should have everything turned in up to today (Wednesday midnight) by Monday.
  • Monday, December 1, 2003 10AM - I have to cancel office hours today. I will be available on Wednesday during lab hours (although we don't have lab this week) if you need help.
  • Sunday, November 23, 2003 9:15PM - I have graded and posted grades for all lab reports that were turned in by Saturday night. Please check the grades page - those of you who have not yet passed labs 1-5 will NOT be issued a project on Wednesday. So far, only 5 students will be given projects on Wednesday. I will be at office hours tomorrow, Monday, 2-4PM. If you turned in labs 1-5, but failed one of them (e.g. N*), please stop by and pick up your lab. Most likely, you will need to make some small revisions and turn it in again. For people in this situation, I will grade all lab reports turned in by Tuesday night so that they can have projects assigned on Wednesday. However, those of you who simply have not turned in reports, I cannot make any guarantees. I would recommend that you turn in your reports ASAP, because (a) it will take me some time to grade them, and (b) you may not pass them on the first try (typically people who wait till the last minute do a poor job, and it takes them a few trys to pass the reports). Again, it is imperative that if you have not passed your lab reports, that you try to pass all them THIS WEEK, because time will run out quickly. You WILL FAIL the class if you don't pass all of them, so please be sure to take care of business. Please email me with any questions or concerns.
  • Thursday, November 20, 2003 1:00AM - I have graded and posted the updated grades for all prelabs & homework assignments due thus far. I've also posted a few of the lab report grades, but I am still grading lab reports and won't be done until Monday. Professor Revaz will be assigning project topics Wednesday, November 26th, and so you need to have passed all lab reports by this date. If you turn in all of you reports thus far (1-5) by Friday (6PM), I will have them graded and posted by Monday. Still, if you don't pass all the labs by Wed., you won't get your project topic until you pass all of them. Finally, the next homework is up, as well as lecture notes and homework solutions.
  • Sunday, November 16, 2003 1:45PM - Office hours this week will be cancelled. (Sorry, I have a job interview I can't reschedule). Please email me if you need any help, and we can work out a time to meet.
  • Friday, November 7, 2003 3:00PM - The "B" series lecture slides are now posted as well. I'm going to be in New York until Monday morning, so I won't be able to reply to any email until sometime on Monday. Office hours will be 2-4PM as usual, so that might be a better way to get a quicker response since I don't think I'll be able to answer any email until Monday evening.
  • Wednesday, November 5, 2003 7PM - Next slides and homework are posted.
  • Monday, October 27, 2003 5:23PM - Some students told me that the homework due date had been extended for homework 3 & 4 until 10/29 by Professor Revaz. He told me that I should accept any homework until the solutions are posted, and then give a D (zero) after the solutions are posted. But, since some people thought that this meant that the solutions wouldn't be posted until 10/29, we're going to do the following to try and recify the situation. I'm still talking to the Professor about this, but I'm thinking of posted an alternate homework 3 & 4 so that if you were counting on having till the 29th, you can still get credit but it's still fair for the rest of the class. I'll let you know when I get word back from Professor Revaz.
  • Sunday, October 26, 2003 10:00AM - I'm going to be a little late to office hours on Monday, I should be there by 3PM. Sorry for any inconvience.
  • Friday, October 24, 2003 9:30PM - Several important comments - first, I have graded everything turned in up to this point, and they are available for pickup during labs/OH. Grades are posted on the left, please let me know of any errors. Homework 5 is posted along with more lecture material. I want to re-iterate the class collaboration policy - you MAY collaborate on labs, except abstract and error analysis as the syllabus states. Homework should be written up independently, although you may share ideas provided you credit them. Simply copying someone else's homework verbatim is not permissible - the syllabus does not permit this, and hence by UCLA academic policy this is considered cheating, and will be dealt with appropriately.

    As far as lab write-ups go, a couple of comments: (a) please don't staple your prelab and homework together, rather, staple them independently, so I don't miss your homework; (b) please include a cover page on your lab reports; (c) keep all of your written pages at the front of your lab report, and staple all xeroxes/lab manual pages to the *back* of your report (don't intermix them); (d) please include some important numerical results/measurements in your abstract to strengthen your abstract (e.g. "the long cable had a bandwidth of 500kHz, significantly smaller than the short cable's bandwidth of 3MHz") - these comments apply to *future* lab reports (e.g. lab 3 and beyond), but I still noted them on everyone's lab 1 and lab 2 writeups. Please ask me if any of these requests are unclear.

    Finally, when you get your homeworks/midterms back, don't get too concerned by the letter grades on the homework/midterm sheets, only the number counts - Professor always curves the scores, so the letter grades are really meaningless (I have no idea why he put them on the homework sheets this quarter).

  • Tuesday, September 30, 2003 4:10PM - My office hours have been updated on the syllabus. I plan to hold them Mondays, 10AM-12PM in BH 3704. Help will also be available immediately before and after the labs for a short period of time. Website updated.
  • Wednesday, October 1, 2003 3:10PM - FYI - my office hours will be Mondays, 10AM-12PM (NOT Friday like I said in class). Prof. Revaz feels that more students will come if I hold them Monday, since you'll have the weekends to do homeworks..
  • Tuesday, October 7, 2003 8:00AM - There is currently NO locker for CS 117 in the BH 4428 (for your homework and prelab dropoff). However, I expect to get a locker tomorrow, Wednesday, and I should have the locker labelled in the morning. Please let me know if this presents a problem. One last thing - I'm moving my office hours (yet again!, sorry, I've been trying to straighten out my class schedule this quarter). They are going to be Mondays, 2-4PM, from now on. Thanks for your understanding!
  • Tuesday, October 7, 2003 8:00PM - I just received word that the TA mailbox for CS 117 will be mailbox number C4. I'm going to label it "CS 117" tomorrow morning, but in case I haven't labeled it, you can still drop you homeworks & prelabs off in the mailbox C4 (in BH 4428). As far as the homework goes, many people are asking about problem 4 on homework 2. The clue I'm giving is "In a single T1 frame, 193 bits are sent in 125 micro secs. You can find the answer to the problem by thinking about how long it takes for a signal at 2/3 the speed of light to go 100km. Then, think about how many frames fit within that time period.". Good luck!
  • Thursday, October 16, 2003 2:45PM - I posted lectures slides and homework 4. Be advised, the original syllabus had a typo on it, the final exam date is NOT 12/9/03, as the syllabus originally stated. Rather, the final exam will be on 12/12/03 (in accordance with the Registrar's final exam schedule available at I've updated the syllabus so that the current syllabus on this website is accurate. Please email me if you have any questions.