- Aug 21, 2005
- 3,888
- 8
- 81
Got a question on Run length limited (RLL) encoding if anyone knows. My last homework assignment of the semester (thank GOD) has this question. I was out of town all last week so I missed the lecture. If anyone has any idea, please feel free to post! (It's due this afternoon and my work is piled up to no end 
)Cheers:
***************************************
Someone claims to have created a (2,9) RLL code that encodes 22 bit-wide words into 41 bit-wide symbols.
a) is this possible?
b) assuming the code does exist and has the (2,9) properties, by what factor can the data throughput of a channel who's capacity is otherwise only limited by the maximum frequency be increased, compared to not using any coding?
Edit:
According to one of my slides, the theoretical limit for (2,9) is 0.5369, and 22/41 is 0.5366, so it should be possible. But now I'm not sure about the capacity increase.
Edit2:
Okay I figured it out. False alarm.
)Cheers:***************************************
Someone claims to have created a (2,9) RLL code that encodes 22 bit-wide words into 41 bit-wide symbols.
a) is this possible?
b) assuming the code does exist and has the (2,9) properties, by what factor can the data throughput of a channel who's capacity is otherwise only limited by the maximum frequency be increased, compared to not using any coding?
Edit:
According to one of my slides, the theoretical limit for (2,9) is 0.5369, and 22/41 is 0.5366, so it should be possible. But now I'm not sure about the capacity increase.
Edit2:
Okay I figured it out. False alarm.
Last edited:
Facebook
Twitter