1. A method, comprising: scrambling a first occurrence of a data word to produce a first scrambled data word; block encoding said first scrambled data word to produce a first code word; scrambling a second occurrence of said data word to produce a second scrambled data word; and block encoding said second scrambled data word to produce a second code word; wherein said second code word and said first code word are different from one another.
1. A method, comprising: scrambling a first occurrence of a data word to produce a first scrambled data word; block encoding said first scrambled data word to produce a first code word; scrambling a second occurrence of said data word to produce a second scrambled data word; and block encoding said second scrambled data word to produce a second code word; wherein said second code word and said first code word are different from one another. 6. The method of claim 1 , comprising: transmitting the first code word and the second code word to a receiver.