Method and apparatus for mapping bits to an information burst

A method of mapping bits to an information burst of a time varying communication channel comprising the steps of:

• mapping a first group of interleaved bits to the information burst;
• mapping a second group of interleaved bits to the information burst;
• selectively interleaving bits of the first group of interleaved bits with bits of the second group of interleaved bits based upon a probability of incurring a bit error at the locations of the bits of the first group.

An apparatus for mapping bits to an information burst of a communication channel comprising:

• an interleaver coupled to receive a first group of bits to be mapped to the information burst and a second group of bits to be mapped to the information burst and to provide interleaved bits,
• a bit mapper coupled the interleaver to receive the interleaved bits and being operable to map the interleaved bits to the information burst relative to a training sequence of the information burst, and
• a bit swapper coupled to the bit mapper, the bit swapper operable to identify a first group bit of the first group of bits mapped to bit locations having a relatively high probability of incurring bit errors and to identify a second group bit of the second group of bits mapped to bit locations having a relatively low probability of incurring bit errors and to relocate the first group bit to the bit location of the second group bit and the second group bit to the location of the first group bit.