The channel estimation is the most important block in the receiver. The given output data of this block are given to the equalizer to correct the channel effect. Finally, after P/S conversion, the symbols are de-mapped to bits. The CP insertion and removal blocs are used with cyclic ...
So, whenever the shade rotates, the hollow and closed cell comes in turns, and it actually represents a set of bits. So, each ring has a fixed bit pattern in it. And the code contains three parts: (1) leading bits, which helps the receiver to understand the start point of the shade...