Apparatus of multi-stage network for iterative decoding and method thereof

An method for iterative decoding in multi-stage network comprising:

• choosing arbitrary two data blocks from N source terminals, and find their destinations' indexes, and using the indexes of the original two sources and their corresponding destinations to determine a plurality of control signals for a network;
• obtaining a shift value X by subtracting the index of first selected source from the index of the corresponding destination;
• obtaining a difference value Y from the index of destination of second selected source minus the index of destination of first selected source;
• getting (N/2m) bits as the control signals for the m-th stage network, wherein each control signal is [(Y−1)×n+X]mod(N/m), n is from 0 to (N/2m)−1 and integer;
• and
• processing the N data blocks from first stage to the Mth stage according to the control signals.