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IT & Programming > Other IT & Programming

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The client has made the following changes to the job.


Bidding period ended early.

Feb 18, 2013

Job Description

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  • Posted: Mon, Feb 18, 2013
  • Time Left: Closed
  • Location: Anywhere
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  • Start: Immediately
  • Budget: $30 - $70
  • Fixed Price Job
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  • W9 Not Required
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I urgently need a wireless communications expert that is experienced in CDMA and Matlab software to work on this project. With understanding and appreciation of the theories and concepts of wireless data transmission using Direct Sequence Spread Spectrum CDMA technology. The main objective of the project is to identify and investigate the BER versus SNR characteristics of a multipath fading channel with four users using this DSSS CDMA system.

Requirements as follow below:

1. Generate 1000 random bits

2. Map these bits to symbols using BPSK modulation.

3. Spread these symbols with Hadamard codes with a code length of 64 and sampling factor of 64.

4. Repeat 1-3 for four other users - therefore there should be 5 orthogonal codes and 5 randomly generated bits in total.

5. Add one more code with all 1s (as pilot channel).

6. Generate a multipath channel with 4 taps, fixed delays and chip spaced. The four taps are complex gaussian channels with rayleigh amplitude characteri...

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Desired Skills
Job ID: 38013604
Avg $ | High $ | Low $ — Show Pricing
  • Submit Date (Latest)

 Spain  |  
I'm a Telecommunications engineer with more than 10 years of experience working with matlab, performing tasks such as image processing, voice,...
 0.0   |  Private   |  0 Jobs
Bid ID: 38020935  |  Submitted: Feb 18, 2013 13:44 ET 
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