Budget:	$ 20-100
Status:	Closed for Bidding
Project Creator:	rfmobile
	Rating: (No Feedback Yet)
Required Skills:	Digital, Engineering
Attached Files:	(None)

NEW	SEND	DISCUSS	CONTACT	OPTIONS

Description
In this project we implement adaptive linear and decision-feedback equalizers through MATLAB.

Simulation setting and parameters
• Every component is simulated in the baseband at the symbol sampling rate (one sample per symbol);
• Use the two channels that are symbol-spaced baseband channels, Channel A and Channel B, on page 551 of the textbook;
• You need to generate 5000 random and complex QPSK symbols for each case in your simulation;
• Pass the symbols through the two channels, respectively. The complex symbols or channels are for passband processing. Their baseband equivalent processing was covered in ECE626 – Communication Systems, with lecture notes still available on Blackboard, see the end of Lecture Notes #1;
• Add pseudo-random white Gaussian noise at the channel output, perform your simulation for per bit SNR of 5 dB and 20 dB; You need to compute the relative scaling between the signal and the noise that these SNRs correspond to;
• Carrier synchronization and symbol synchronization are assumed perfect;
• Implement symbol-spaced adaptive LMS equalizers: (a) Linear ZF; (b) Linear MMSE; (c) MMSE-DFE; The equalizers should be FIR, with 32 taps (for both precursor and post-cursor equalizers in the DFE case);
• Use 1000 initial training symbols, then switch to the decision-directed mode; Choose your step size to compromise between fast convergence speed vs. low residual MSE for each case separately; Your best step size will be different for different cases, which can be achieved by experimenting each case.

Requirements in your simulation and report:
1. If not specified, you need to repeat for all channels, all SNRs, and all equalizers;
2. Make the following plots, use your discretion on how many curves to group into each plot, for best presentation of relevant results:
© Signal constellation without equalization, and signal constellation with equalization (excluding the training symbols) for SNR of 20 dB;
© Learning curves (parameter values vs. time of all 5000 samples) of the first a few (at least 3) equalizer coefficients;
© BER vs. SNR (excluding the training symbols);
3. Write your report, give details of all steps including descriptions, block diagrams, equations, computation, adaptive algorithm description, choices of the step size, etc.; Provide observations, discussions, and conclusions.

Reminder
You may not start working in this and any project before your bid is accepted. Any user who violates this policy may have their account permanently suspended.

Bids Received (5)   Shortlist (0)   Declined Bids (0)    Average bid amount:   $499.80   Average delivery time:   15 Day(s)

Place Bid | Post Similar Project | Send Project | Message Board(0) | Contact rfmobile Order by: Rating Bid sum Bid date

Remember that contacting the other party outside the site (by email, phone, etc.) on all business projects (before the project is awarded) is a violation of our terms of use. We supervise all site activity for such infringements and can immediately expel transgressors on the spot, so we thank you in advance for your cooperation. If you notice a violation please help out the site and report it. Thank you for your help.

nbsp;

Shortlist Decline Bid Dhyan   Bangalore, IN location US$150 bid amount (2 reviews) feedback 7 day(s) delivery time     Hi I will be able to finish this project for you. please check PM. Regards Dhyan Bid Time: 06-01-2008 02:07

Shortlist Decline Bid thunderflash   beijing, CN location US$150 bid amount (2 reviews) feedback 7 day(s) delivery time     hi, I am interested in the project. do you have relate document about project? Bid Time: 06-01-2008 19:28

Shortlist Decline Bid vedenev   Novosibirsk, RU location US$2,000 bid amount (2 reviews) feedback 45 day(s) delivery time     I am physicist and matlab programmer. See link to my experience in Private Message. Bid Time: 06-01-2008 22:43

Shortlist Decline Bid usctrojan   Islamabad, PK location US$99 bid amount (No Feedback Yet) feedback 7 day(s) delivery time     Hi Will you provide the name of book or pdf and ECE626 course notes. "page 551 of the textbook" "Their baseband equivalent processing was covered in ECE626 – Communication Systems, with lecture notes still available on Blackboard, see the end of Lecture Notes #1;" If you will provide the above reference than I can do this project by/before next Monday. Bid Time: 05-31-2008 21:42

Shortlist Decline Bid riverpan   Guangzhou, CN location US$100 bid amount (No Feedback Yet) feedback 7 day(s) delivery time     Hi, Please PM me and need the textbook information. Regards. Bid Time: 06-06-2008 18:17