OFDMA_Part18 - In the above equation, Pi is the power...

Info iconThis preview shows page 1. Sign up to view the full content.

View Full Document Right Arrow Icon
18 In the above equation, P i is the power allocated to the i th channel and λ is a scaling factor. When we differentiate the information capacity with respect to P i , we get P i = υ – N i where N i is the noise level on i th channel. Also, υ is the ‘water level’ that satisfies . Now, the algorithm for the single-user water-filling technique can be written as follows: Start ! = + P total " P temp N P temp = ( " N i ) + # If P total ! P temp " tolerance _ level End If
Background image of page 1
This is the end of the preview. Sign up to access the rest of the document.

This note was uploaded on 09/27/2009 for the course ECE 399 taught by Professor Prof during the Spring '09 term at University of Texas at Austin.

Ask a homework question - tutors are online