Feedback Overhead in the FDD Downlink Massive MIMO System

Algorithm 6

LZW feedback overhead decoding.

1: Initialize the dictionary with all integer values from to

2:

3: OLD=first input code of the codes stream

4: Output the DBC of OLD

5: while not end of input codes stream do

6:  CURRENT = next input code of the codes stream

7:  Output the sequence of or a multiple of bits corresponding to CURRENT in the dictionary

8:  

9:  Add in the dictionary as the code of the sequence of bits corresponding to OLD concatenated with the first bits of that corresponding to CURRENT

10:  Replace OLD by CURRENT