Research Article
A Doping Bits Based BP Decoding for Rateless Distributed Source Coding Applications
Table 4
Simulation parameters for rate compatibility.
| | Base code rate | (1500, 750) |
| | Derived code rate for use as rate-adaptive codes | (1800, 1050)
(L = 20% of N) = 300; ; .
= .
. |
| | Source X | Bit planes of frame 2 of grandma video sequence. |
| | Source Y | Bit planes of frame 1 of grandma video sequence. |
| | Side information | Motion compensated Frame1 at the decoder. |
| Rate considered for Scheme A
Rate =
where = 0 to 300 | (1) 750/1500 = 0.5
Punctured nodes = 300. | (2) 750/1600 = 0.46875
Punctured nodes = 200.
Extended source nodes = 100. |
|
Rate considered for Scheme B
Rate = to | (1) 1000/1500 = 0.666;
Punctured nodes = 50
Doping nodes = 250 (extended syndromes)
Extended source nodes = 0. | (2) 900/1600 = 0.5625
Punctured nodes = 50
Doping nodes = 150 (extended syndromes)
Extended source nodes = 100 |
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