Title :
Error correction performance in digital subscriber loop transmission systems
Author :
Kumozaki, Kiyomi
Author_Institution :
NTT Network Syst. Dev. Center, Kanagawa, Japan
fDate :
8/1/1991 12:00:00 AM
Abstract :
The author describes an error correction system for digital subscriber loop transmission systems which use time compression multiplexing (TCM). An interleaved block code is used to correct the burst errors due to impulse noise from analog telephone circuits. This interleaving method requires no extra hardware and contributes no additional delay. To evaluate the transmission performance of this error correction system, the bit error rate after decoding is derived on the basis of a burst error model for 200 kb/s digital subscriber transmission using the alternate mark inversion (AMI) line code. The experimental results for a 200 kb/s TCM system show that burst errors are substantially reduced
Keywords :
error correction codes; subscriber loops; time division multiplexing; 200 kbit/s; AMI; alternate mark inversion; analog telephone circuits; bit error rate; burst errors; decoding; digital subscriber loop transmission; error correction system; impulse noise; interleaved block code; line code; time compression multiplexing; transmission performance; Added delay; Bit error rate; Block codes; Circuit noise; DSL; Error correction; Error correction codes; Hardware; Interleaved codes; Telephony;
Journal_Title :
Communications, IEEE Transactions on
